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Bill of Quantity (BOQ) for Excavation & Back Filling Work

Excavation means work involving the removal of soil or sand or rock from earth, Excavation quantity usually calculating in m³ (Cubic meter)

Backfilling means the process used refilling soil (or) sand an excavated area, backfilling quantity usually calculating in m³ (Cubic meter)

Backfilling and Excavation Bill of Quantities (BOQ) are essential components in construction and civil engineering projects, detailing the scope of work and associated costs for excavation and backfill activities.

“Here is a sample of the bill of quantity for excavation & backfilling, formatted as follows

Click here below download button for to download this BOQ

Click here below download button for to download this excavation & backfilling work BOQ

BOQ For Excavation & backfilling Work

BILL OF QUANTITY FOR EXCAVATION AND BACK FILLING WORK
Si.No Description Unit Quantity Unit Rate Amount Remark
EXCAVATION OF EARTH WORK - EXCAVATING WITH ANY MATERIAL
1 Removal of Grass, Rubbish,root,and all kind of dumbed material from the site m2
2 Earth Work Excavation , Depth is not Exceeding 1.50 m m3
3 Earth Work Excavation , Depth is not Exceeding 4.0 m ( Rate is over corresponding basic item for depth up to 4.0m) m3
4 Earth Work Excavation , Depth is over 4.0 m ( Rate is over corresponding basic item for depth over 4.0m ) m3
6 Filling with available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead up to 50 m and lift u pto 1.5 m m3
4 Remove surplus excavated material from the site m3
BACK FILLING BY IMPORTED SOIL INCLUDING OF FILLING BY LAYERS, LEVELLING , AND WELL COMPACTION
5 Providing and laying (consolidated thickness) hard core fill (Stone soiling), under footing, paving's and other locations, with approved hard stones of size 150-200 mm and down, thoroughly filled with smaller chips, Dry soiling and consolidated to require level complete Item
6 Supplying and filling in plinth with fine sand under floors including, watering, ramming, consolidating and dressing complete m3
7 Back filling, Earth filling into excavation , Depth is not Exceeding 1.50 m m3
8 Earth filling into excavation , Depth is not Exceeding 4.0 m ( Rate is over corresponding basic item for depth up to 4.0m m3
9 Earth filling into excavation , Depth is above the 4.0 m ( Rate is over corresponding basic item for depth over 4.0m m3
Sundries
10 Anti-Termite Treatment :- Providing and injecting chemical emulsions for pre-construction anti-termite treatment and creating continuous chemical barrier under and all around the column pits, wall trenches, top surfaces of plinth filling, junctions of walls and floors, along the external perimeter of buildings, expansion joints, over the top surface of consolidated earth on which plinth protection is to be laid, surrounding of pipes and conduits etc. Item
Total Amount For Excavation and Back Filling Work

IMPORTANT NOTES ABOUT BRICKS / SPECIFICATION OF BRICKS / CLASSIFICATION OF BRICKS / TYPES OF BRICKS

Composition of Bricks:-

Silica (sand) 50 to 60% of the dry weight of bricks, Alumina (Clay) 20 to 30% of the dry weight of bricks, lime is 10 to 12% dry weight of bricks, Alkalis is less than 10% of the dry weight of bricks, Magnesia is less than 1% of the dry weight of bricks, a ferric oxide is less than 7% of the dry weight of bricks. Some basic details are stated below

1. Standard size for Modular brick (without Mortar) – 190 x 90 x 90 mm, brick is required for 1m3-650 no’s

    2. Brick size with Mortar (Nominal Brick) – 200 x 20 x 20 mm, brick is required for 1m3-500 no’s, With mortar and 5% of Standard Wastage- 525 no’s

    3. Standard size for Non-modular brick – 230 x 110 x 70 mm & 230 x 110 x 30 mm

    4. Standard size for English Size brick – 230 x 115 x 75 mm

    5. Standard size for English Size brick – 230 x 115 x 75 mm

    6. Standard size for Conventional brick – 230 x 110 x 110 mm

    7. Allowable wastages for brick in construction is 0 – 5%

    8. Curing Brickwork shall be well watered continuously for 10-14 days

    Bricks are Classified in different factor, Following Types of Bricks are used Construction 

    Classification (or) Type of brick based on Raw material

    1.Burnt Clay Bricks 2. Sun-Dried Clay Bricks 3. Concrete Bricks 4. Engineering Bricks 5.Sand Lime Bricks 6.Fly Ash Bricks 7.Firebrick

    Classification (or) Type of brick based on Shape

    1. Squint brick 2. Splay Brick 3. Coping Brick 4. Bull Nose brick 5. Cow nose brick 6. Perforated brick 7.Hollow Brick

    Classification (or) Type of brick-based weather resisting capability

    1. No weather grade 2.Moderate weather grade 3. Severe weather grade

    Classification (or) Type of brick based on building Process

    1. Unburnt Bricks 2.Burnt bricks

    Classification(or) Type of brick based on manufactured method

    1. Ground-Molded brick 2.Table-Molded brick 3.Machine-Molded brick

    Classification (or) Type of brick based on Quality: –

    1. First Class brick 2. Second class Brick 3. Third class Brick 4. Fourth Class Brick

    First-class brick cursing Strength is -10.50 N/mm2, which is used for constructing the Exterior walls and flooring, and its water absorption capacity is –less than 20 % of the weight of brick

    Second-class brick cursing Strength is -7.00 N/mm2, which is used for constructing the Exterior wall use with plastering, and its water absorption capacity is – less than 22 % of the weight of brick

    Third-class brick cursing Strength is -3.50 N/mm2, which is used for constructing temporary construction in dry conditions and its water absorption Capacity for Third Class Brick is – 22-25 % of the weight of brick

    How to Calculate Quantities for Painting Quantity for Room Internal Walls From Drawing?

    How to Calculate Quantities for Flooring Work from Drawing? How to calculate Tile, Marble, Granite Quantity for floor from drawing?

    Flooring Area is a horizontal Area usually different type of materials are used in flooring work like (concrete flooring, Tile, Granite, marble etc.…

    Above drawings is a reference,

    Size of Bed Room              =        2800 x 2700 mm / 2.8 x 2.7 m

    Size of Hall & Dining         =        3000 x 2700 mm / 3.0 x 2.7 m

    Size of Kitchen                   =        2000 x 2700 mm / 2.0 x 2.7 m

    Size of Bath Room             =        1500 x 1700 mm / 1.5 x 1.7 m

    Formula
    Area of Flooring = Length of Room  X      Breadth of Room (L x B)

    1. Bed Room Floor Area Which is in Grid (A-B) / (2-3)

    Bedroom Floor Area = 2.8 x 2.7 = 7.56 m2

    2. Hall & Dining Floor Area Which is in Grid (B-C) / (2-3)

    Hall & Dining Area = 3.0 x 2.7 = 8.10 m2

    3. Kitchen Area Floor Which is in Grid (C-D) / (2-3)

    Kitchen Floor Area = 2.0 x 2.7 = 5.40 m2

    4. Bath Room Floor Area Which is in Grid (A-B) / (1-2)

    Bath Room Floor Area = 1.5 x 1.7 = 2.55 m2

    Total Floor Area = Floor Area of Bedroom + Floor Area of Hall & Dining + Floor Area of Kitchen + Floor Area of Bath Room

    Total Floor Area = 7.56 + 8.10 + 5.40 + 2.55 = 23.61 m2

    For Example Tiles are used in this Flooring Work, if Size of Tile is 400 x 400 mm / 0.4 x 0.4 m

    So, Nos of Tile = Total Floor Area / Area of One Tile

    Area of one Tile = 0.4 x 0.4 = 0.16 m2

    Total No of Tile = 23.61 / 0.16 = 147.56 / Say 148 No’s

    Usually Wastages considers 5-10 % in Floor Tile / Granite / Marble Work
    If Wastage is 5 %

    Total No of Tile =     (148) + 5% of Total No’s of Tile

    Total No of Tile =     (148) + (148*5%) =155.4 /156 No’s of Tiles Requires

    How to calculate Quantities for Flooring Area? How to calculate Tile, Marble, Granite area for floor

    Calculation for Flooring Work
    Si.No Description Length (m) breadth / Width (m) Height (m) Area (m2) (length x Breadth)
    1 Bed Room 2.80 2.70 7.56
    2 Hall & Dining 3.00 2.70 8.10
    3 Kitchen 2.00 2.70 5.40
    4 Bath Room 1.50 1.70 2.55
    Total Quantity for Floor Area 23.61

    Floor Area Number of Tile Calculation

    Floor Area Number of Tile Calculation -Tile Size 0.4 x 0.4 m = 0.16 m2
    Si.no Description Floor Area Tile Area (0.4 x 0.4) = 0.16 m2 Total No of Tile Wastage (%) Total No of Tile With Wastage
    1 Bed Room 7.56 0.16 47 5% 50
    2 Hall & Dining 8.10 0.16 51 5% 53
    3 Kitchen 5.40 0.16 34 5% 36
    4 Bath Room 2.55 0.16 16 5% 17
    Total Quantity of Tile 148
    Total No of Tile Requires (Without Wastage) 148 Nos
    Total No of Tile Required (With 5% of Wastage) 156 Nos

    Basic Unit Conversion Table

    Basic Unit Conversion Table

    Basic Unit Conversion Table :- The SI base units are the standard units  of measurement defined by the International system of units (SI) , some of basic units with conversion table stated below.

    A basic unit conversion table for length includes commonly used units such as meter, millimeter, centimeter, kilometer, foot/feet, inch, yard, and mile. This table provides a quick reference for converting measurements between these units, facilitating seamless transitions between different systems of measurement. Users can easily determine the equivalent values by consulting the conversion factors listed in the table.

    For instance, they can convert lengths from meters to feet, inches to centimeters, or kilometers to miles, ensuring accuracy and consistency in various applications such as construction, engineering, and everyday measurements. This simple tool aids in efficient and precise unit conversions, making it a valuable resource for a wide range of fields.

    Basic Unit Conversion Table

    Si. No Unit  Equivalent  Units  Unit  Equivalent  Units 
    meter (m)  unit Conversion 
    1 1 meter 3.28083 foot  1 m 3.28083 ft 
    2 1 meter 1000 millimeter 1 m 1000 mm
    3 1 meter 100 centimeter 1 m 100 cm 
    4 1 meter 39.3701 inch 1 m 39.3701 in
    5 1 meter 0.001 kilometer 1 m 0.001 km
    6 1 meter 1.09361 yard 1 m 1.09361 yd
    7 1 meter 0.000621371 mile 1 m 0.000621371 mi
    foot / feed  (ft)  unit Conversion
    1 1 foot / feet  0.3048 meter 1 ft 0.3048 m
    2 1 foot / feet  304.8 millimeter 1 ft 304.8 mm
    3 1 foot / feet  30.48 centimeter 1 ft 30.48 cm
    4 1 foot / feet  12 inch 1 ft 12 in
    5 1 foot / feet  0.0003048 kilometer 1 ft 0.0003048 km
    6 1 foot / feet  0.333333 yard 1 ft 0.333333 yd
    7 1 foot / feet  0.000189394 mile 1 ft 0.000189394 mi
    millimeter (mm)  unit Conversion 
    1 1 millimeter 0.001 meter 1 mm 0.001 m
    2 1 millimeter 0.00328084 foot  1 mm 0.00328084 foot 
    3 1 millimeter 0.10 centimeter 1 mm 0.10 cm
    4 1 millimeter 0.0393701  inch 1 mm 0.0393701  in
    5 1 millimeter 1e-6 kilometer 1 mm 1e-6 km
    6 1 millimeter 0.00109361 yard  1 mm 0.00109361 yd 
    7 1 millimeter 6.2137e-7 mile 1 mm 6.2137e-7 mi
    centimeter  (cm)  unit Conversion
    1 1 centimeter 0.01 meter 1 cm 0.01 m
    2 1 centimeter 0.0328084 foot  1 cm 0.0328084 foot 
    3 1 centimeter 10 millimeter 1 cm 10 mm
    4 1 centimeter 0.393701 inch 1 cm 0.393701 in
    5 1 centimeter 1e-5 kilometer 1 cm 1e-5 km
    6 1 centimeter 0.0109361 yard 1 cm 0.0109361 yd
    7 1 centimeter 6.2137e-6 mile 1 cm 6.2137e-6 mi
    inch  (in)  unit Conversion
    1 1 inch 0.0254 meter 1 in 0.0254 m
    2 1 inch 0.0833333 foot  1 in 0.0833333 foot 
    3 1 inch 25.4 millimeter 1 in 25.4 mm
    4 1 inch 2.54 centimeter 1 in 2.54cm
    5 1 inch 2.54e-5 kilometer 1 in 2.54e-5 km
    6 1 inch 0.0277778 yard 1 in 0.0277778 yd
    7 1 inch 1.5783e-5 mile 1 in 1.5783e-5 mi
    kilometre  (km)  unit Conversion
    1 1 kilometer 1000 meter 1 km 1000 m
    2 1 kilometer 3280.84 foot  1 km 3280.84 foot 
    3 1 kilometer 1e+6 millimeter 1 km 1e+6 mm
    4 1 kilometer 100000 centimeter 1 km 100000 cm
    5 1 kilometer 39370.1 inch 1 km 39370.1 in
    6 1 kilometer 1093.61 yard 1 km 1093.61 yd
    7 1 kilometer 0.621371 mile 1 km 0.621371 mi
    yard   (yd)  unit Conversion
    1 1 Yard 0.9144 meter 1 yd
    2 1 Yard 3.00 foot  1 yd 3.00 foot 
    3 1 Yard 914.4 millimeter 1 yd 914.4 mm
    4 1 Yard 91.44 centimeter 1 yd 91.44 cm
    5 1 Yard 36 inch 1 yd 36 in
    6 1 Yard 0.0009144 kilometer 1 yd 0.0009144 km
    7 1 Yard 0.000568182 mile 1 yd 0.000568182 mi
    mile   (mi)  unit Conversion
    1 1 mile 1609.34 meter 1 mi 1609.34 m
    2 1 mile 5280 foot  1 mi 5280 foot 
    3 1 mile 1.609e+6 millimeter 1 mi 1.609e+6 mm
    4 1 mile 160934 centimeter 1 mi 160934 cm
    5 1 mile 63360 inch 1 mi 63360 in
    6 1 mile 1.60934 kilometer 1 mi 1.60934 km
    7 1 mile 1760 yard 1 mi 1760 yd

    Units of Measurements for Construction Materials

    Units of Measurements of Construction materials :– There are different type of materials are used in construction industry , some of material’s and their measurements units are stated below 

    Images are used for educational purposes only, with full credit to the original owners. Please contact us if you are the copyright holder and would like changes

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    Units of Measurements for Construction Materials

    S.no Material / Item  Units for Materials Units
    1 Cement Bags Bag 
    2 Sand  Cubic Meter m3
    3 Aggregate  Cubic Meter m3
    4 Gravel Cubic Meter m3
    5 Brick Numbers / Square meter Nos / m2
    6 Blocks  Numbers / Square meter Nos / m2
    7 Stone Numbers / Square meter Nos / m2
    8 Concrete  Cubic Meter m3
    9 Screed Cubic Meter m3
    10 White Cement kilogram  Kg
    11 Fly ash  kilogram  Kg
    12 Lime kilogram  Kg
    13 Reinfroment Steel  kilogram  Kg
    14 Binding wires kilogram  Kg
    15 Water Litre L
    16 Glass Square meter m2
    17 Ply wood  Square meter m2
    18 Wood  Cubic Meter m3
    19 Teak Wood Cubic Meter m3
    20 Sal Wood  Cubic Meter m3
    21 Gypsum Board Square meter m2
    22 Slacked Lime  kilogram  kg
    23 Primer Litre L
    24 Paint Litre L
    25 Emulsion Paint Litre L
    26 Thinner Litre L
    27 Wall putty  kilogram  kg
    28 Tile  Numbers / Square meter Nos / m2
    29 Marble  Numbers / Square meter Nos / m2
    30 Grainte  Numbers / Square meter Nos / m2
    31 Bitumen  Drum / Litre Drum / L
    32 Membrane Roll / Square meter / Numbers Roll (or) m2 / Nos
    33 Geotextile  Square meter m2
    34 Terram Sheet  Square meter m2
    35 Insulation baord  Square meter m2
    36 Foam  Square meter m2
    37 Aluminium Sheet  Square meter m2
    38 G.I Sheet (galvanized iron sheet) Square meter m2
    39 A.C Sheet (Asbestos cement) Square meter m2
    40 PVC pipe  meter m
    41 Sanitary & Fittings  Numbers Nos
    42 Windows Square meter / Nos m2 / Nos
    43 Doors Square meter / Nos m2 / Nos

    How to Calculate Quantities for Flooring Work from Drawing? How to calculate Tile, Marble, Granite Quantity for floor from drawing?

    Flooring Area is a horizontal Area usually different type of materials are used in flooring work like (concrete flooring, Tile, Granite, marble etc.…

    How to calculate Quantities for Flooring Work ? How to calculate Tile, Marble, Granite area for floor

    Above drawings is a reference,
    Size of Bed Room              =        2800 x 2700 mm / 2.8 x 2.7 m

    Size of Hall & Dining         =        3000 x 2700 mm / 3.0 x 2.7 m

    Size of Kitchen                   =        2000 x 2700 mm / 2.0 x 2.7 m

    Size of Bath Room             =        1500 x 1700 mm / 1.5 x 1.7 m

    Formula
    Area of Flooring = Length of Room  X      Breadth of Room (L x B)

    1. Bed Room Floor Area Which is in Grid (A-B) / (2-3)
    Bedroom Floor Area = 2.8 x 2.7 = 7.56 m2

      2. Hall & Dining Floor Area Which is in Grid (B-C) / (2-3)
      Hall & Dining Area = 3.0 x 2.7 = 8.10 m2

      3. Kitchen Area Floor Which is in Grid (C-D) / (2-3)
      Bedroom Floor Area = 2.0 x 2.7 = 5.40 m2

      4. Bath Room Floor Area Which is in Grid (A-B) / (1-2)
      Bath Room Floor Area = 1.5 x 1.7 = 2.55 m2

      Total Floor Area = Floor Area of Bedroom + Floor Area of Hall & Dining + Floor Area of Kitchen + Floor Area of Bath Room

      Total Floor Area = 7.56 + 8.10 + 5.40 + 2.55 = 23.61 m2

      For Example Tiles are used in this Flooring Work, if Size of Tile is 400 x 400 mm / 0.4 x 0.4 m

      So, No of Tile = Total Floor Area / Area of One Tile
      Area of one Tile = 0.4 x 0.4 = 0.16 m2
      So, Total No of Tile = 23.61 / 0.16 = 147.56 / Say 148 No’s

      Usually Wastages considers 5-10 % in Floor Tile / Granite / Marble Work
      If Wastage is 5 %
      Total No of Tile =     (148) + 5% of Total No’s of Tile
      Total No of Tile =     (148) + (148*5%) =155.4 /156 No’s of Tiles Requires

      How to calculate Quantities for Flooring Area? How to calculate Tile, Marble, Granite area for floor

      Calculation for Flooring Work
      Si.No Description Length (m) breadth / Width (m) Height (m) Area (m2) (length x Breadth)
      1 Bed Room 2.80 2.70 7.56
      2 Hall & Dining 3.00 2.70 8.10
      3 Kitchen 2.00 2.70 5.40
      4 Bath Room 1.50 1.70 2.55
      Total Quantity for Floor Area 23.61

      Floor Area Number of Tile Calculation

      Floor Area Number of Tile Calculation -Tile Size 0.4 x 0.4 m = 0.16 m2
      Si.no Description Floor Area Tile Area (0.4 x 0.4) = 0.16 m2 Total No of Tile Wastage (%) Total No of Tile With Wastage
      1 Bed Room 7.56 0.16 47 5% 50
      2 Hall & Dining 8.10 0.16 51 5% 53
      3 Kitchen 5.40 0.16 34 5% 36
      4 Bath Room 2.55 0.16 16 5% 17
      Total Quantity of Tile 148
      Total No of Tile Requires (Without Wastage) 148 Nos
      Total No of Tile Required (With 5% of Wastage) 156 Nos

      How to Calculate Number of blocks or Hollow blocks Quantities in block wall ?

      How to Calculate Number of blocks or Hollow blocks Quantities in block wall ?

      Hollow Block :- is a concrete block used in construction to build an internal & External Walls , there are different size of hollow blocks are used in construction, Hollow Concrete blocks are made of Portland cement, fine aggregate and sand. Usually fly ash or bottom ash is mixed with the concrete mixture.

      How to calculate Hollow Block Quantities in Wall

      For Example Wall Size is

      Length (L) -1m, Height (H) – 1m and Width (W) is-1m  

      Standard block Size –400 x 200 x 200 mm / 0.40 x 0.20 x 0.20 m (Without Mortar)

      Mortar Thickness is -10mm, 10mm mortar used in all the four sides

      Block Size with Mortar – 410 x 210 x 210 mm / 0.41x 0.21x 0.21 m

      Formula to Find the Number of Block Quantity in Wall is

      Formula = Volume of Wall / Volume of One Block

      Volume of Wall   = Length (L) x Width (W) x Height (H)

      Volume of Wall   =  1 x 1 x 1 = 1.0 mᶟ

      Volume of one Block without Mortar = 0.40 x 0.20 x 0.20 = 0.0160 mᶟ

      Volume of one Block with Mortar       = 0.41x 0.21x 0.21 = 0.0181 mᶟ

      So, No of Block Required in 1mᶟ of Wall is

      No of Block without Mortar  =    1.0 / 0.0160 = 62.50 /say 63 No’s

      No of Block with Mortar        =    1.0 / 0.0181 = 55.31 /say 56 No’s

      Usually Wastages considers 5% in block Work

      No of Block with Mortar        =     (1.0 / 0.0181)+5% of Total No’s of Blocks

      No of Block with Mortar        =     (56)+(56*5%) = 59 No’s of Blocks Requires

      1. Block Without Mortar (400 x 200 x 200) mm Size  Required in 1mᶟ = 63 Nos

      2. Block With Mortar (410 x 210 x 210 ) mm Size  Required in 1mᶟ = 56 Nos  (Without wastage)

      3. Block With Mortar       (410 x 210 x 210) mm Size Required in 1mᶟ = 59 Nos (With wastage 5%) 

      How to Calculate Number of Brick Quantity in brick wall

      Brick is a construction material it’s made up with clay, composition of brick is Lime 2 to 5% Alumina-clay 20 to 30%, Silica-Sand – 50 to 60%, Bricks are rectangular blocks of backed clay which is used to construct a walls and payment and other some masonry in construction.

      Brick Masonry is constructed by placing of brick with mortar which is called as brick masonry Brick masonry is a highly durable form of construction

      How to calculate brick quantities in brick masonry Wall

      For Example Wall Size is

      Length (L) -1m, Height (H) – 1m and Width(W) is-1m

      Standard brick Size – 190 x 90 x 90 mm / 0.19 x 0.09 x 0.09 m (Without Mortar)

      Mortar Thickness is -10mm

      Brick Size with Mortar – 200 x 100 x 100 mm / 0.20 x 0.10 x 0.10 m

      Formula to Find the Number of Brick Quantity in Wall is

      Formula = Volume of Wall / Volume of One Brick 

      Volume of Wall   = Length (L) x Width (W) x Height (H)

      Volume of Wall   =  1 x 1 x 1 = 1.0 mᶟ

      Volume of one Brick without Mortar = 0.19 x 0.09 x 0.09 = 0.00154 mᶟ

      Volume of one Brick with Mortar       = 0.20 x 0.10 x 0.10 = 0.00200 mᶟ

      So, No of brick required in 1mᶟ of Wall is

      No of Brick without Mortar  =    1.0 / 0.00154 = 650 Nos

      No of Brick with Mortar        =    1.0 / 0.0020 = 500 Nos

      Usually Wastages considers 5% in brick Work 

      No of Brick with Mortar        =  (1.0 / 0.0020)+5% of Total Nos of Bricks

      No of Brick with Mortar        =  (500)+(500*5%) = 525 Nos of Bricks Requires

      1. Brick Without Mortar (190 x  90 x 90) mm Size  Required in 1mᶟ = 650 Nos

      2. Brick With Mortar (200 x 100 x 100 ) mm Size  Required in 1mᶟ = 500 Nos  (Without wastage)

      3. Brick With Mortar (200 x 100 x 100 ) mm Size  Required in 1mᶟ = 525 Nos (With wastage 5%) 

      How to Calculate Cement, Sand, Quantities for Plastering Work ?

      Plastering: – This work activity means a thin layer of mortar, applied over the Wall & ceiling masonry, which it acts like a damp-proof coat over the masonry work

      Mortar: – Is a mixture of Cement (or) Lime, sand & water, which is used in masonry work in construction to fill the gaps between the bricks and blocks.

      How to Calculate Cement, and Sand Quantities in Plastering Work

      For Example size of Wall

      Length of Wall (L) – 50m, Height of Wall (H) – 4.0m,

      Thickness of Plaster (T) – 12 mm (Inner Wall)

      STANDART PLASTER THICKNESS

      Plastering Area Thickness of Plaster
      Inner Plaster Work 10-12 mm
      Outer Plaster Work 15-20 mm
      Ceiling Plaster Work 6-8 mm


      Plaster Area =Length × Height

      Plaster Area =50×4 =200.00m2

      Volume of Mortar = Plaster Area x Plaster Thickness in meter

      Volume of Mortar = 200.00 x 0.012 = 2.40 mᶟ

      If Ratio of Plaster is – 1:6 , Which Means 1% of Cement & 6 % of Sand

      FORMULA TO FIND THE QUANTITIES OF CEMENT, SAND  IS

      Formula = \frac{Dry Volume of mortar  *  Volume of mortar *  Ratio of (Cement /Sand) }{Total Ratio (Cement + Sand)}  

      If it is Outer Wall Dry Volume of  mortar -1.33mᶟ

      Volume of Mortar -2.4 mᶟ

      Ratio of Cement = 1, Ratio of Sand =6, ,  Total Ratio (1+ 6) = 7

      Required Quantity of Cement & Sand in 2.4 mᶟ Plastering Work  is

      Cement = \frac{1.33 * 2.4 * 1}{ 1 +  6}   = 0.456 mᶟ

      Sand= \frac{1.33 * 2.4* 6}{ 1 +  6}   = 2.736 mᶟ

      Which Means 1:6 mortar Ratio of Plastering Works  Required,

      Cement – 0.456 mᶟ / 1mᶟ of cement Equal to 29 bags of Cement,

      So, 0.456x 29 = 13.224 Bags of Cement is required

      1 Bag of cement to is Equal to 50Kg, So 50 x 13.224  =661.20 kg Cement Required

      Sand – 2.736 mᶟ / 1mᶟ equal to 35.31 cu.ft / cubic foot / ftᶟ

      So, 2.736 x 35.31 = 96.608 cu.ft / cubic foot Sand is required

      How to Calculate Cement, Sand, and Aggregate Quantities in Concrete?

      CONCRETE:-

      Concrete it’s a construction component, a mixture of cement, sand, and course or fine aggregate with water which is called us concrete, which is used in construction in different structures, In Construction industry concrete are used to mix in following ways as follows

      1.Hand Mix Concrete 2. Machine mix Concrete 3. Ready Mix Concrete

      How to Calculate Cement, Sand, and Aggregate Quantities in Concrete

      For Example size of slab
      Length (L) – 1m, Width (B) – 1m, Thickness /Depth (D) -1.0 m

      SO, Total Volume of concrete = (L x B x D) = 1 x 1 x 1 = 1.0 mᶟ

      if Grade of Concrete -M7.5 ,  Ratio of M 7.5 Concrete – 1 : 4 : 8

      Which Means 1% of  Cement, 4% of  Sand & 8% of Aggregate

      FORMULA TO FIND THE QUANTITIES OF CEMENT, SAND, AGGREGATE IS

      Formula = \frac{Dry Volume of Concrete  *  Volume of Concrete  *  Ratio of (Cement / Sand /Aggregate) }{Total Ratio (Cement + Sand + Aggregate)}  

      Dry Volume of Concrete -1.54 mᶟ  , Volume of Concrete -1.0 mᶟ

      Ratio of Cement = 1,  Ratio of Sand =4,  Ratio of Aggregate =8 ,  Total Ratio (1+ 4+ 8) = 13

      Required Quantity of Cement , Sand & Aggregate in 10 mᶟ Concrete is

      Cement = \frac{1.54 * 1 * 1}{ 1 +  4 +  8}   = 0.118 mᶟ

      Sand= \frac{1.54 * 1 * 4}{ 1 +  4 +  8}   = 0.474 mᶟ

      Aggregate = \frac{1.54 * 1 * 8}{ 1 +  4 +  8}   = 0.948 mᶟ

      Which Means 1.0 mᶟ of M7.5 Grade Concrete Required,

      Cement – 0.118 mᶟ / 1mᶟ of cement Equal to 29 bags of Cement,

      So, 1.184 x 29 = 3.43 Bags of Cement is required

      1 Bag of cement to is Equal to 50Kg, So 50 x 3.43 = 171.169 kg Cement Required (Without Any Wastage)

      Sand – 0.474 mᶟ / 1mᶟ equal to 35.31 cu.ft / cubic foot / ftᶟ

      So, 0.474 x 35.31 = 16.732 cu.ft / cubic foot Sand is required (Without Any Wastage)

      Aggregate – 0.948 mᶟ / 1mᶟ equal to 35.31 cu.ft / cubic foot / ftᶟ

      So, 0.948 x 35.31 = 33.463 cu.ft / cubic foot Aggregate is required (Without Any Wastage)

      Bill of Quantity (BOQ) for Roof Water Proofing Work

      Waterproofing Work

      Buildings is the method of forming a barrier over surfaces of foundations, roofs, walls, bathrooms and other structural members of buildings to prevent water penetrations through these surfaces. In summary, building surfaces are made water-resistant and waterproof.

      There are different type of water proofing method is used in Roofing work , Following BOQ sample for Roof is Torch applied bituminous Water proofing.

      A Bill of Quantities (BOQ) for Roof Waterproofing Work is a comprehensive document used in construction projects to outline and quantify the materials, labor, and other resources required for waterproofing a roof. It serves as a detailed cost estimation and a basis for tendering and project management. The BOQ for Roof Waterproofing typically includes information such as the type and quantity of waterproofing materials, specifications for application methods, labor costs, and associated overheads.

      “Here is a sample of the bill of quantity for Roof Water Proofing Work , formatted as follows

      Click here below download button for to download this BOQ

      BOQ for Super Structure Water Proofing / Roof Water proofing

      BILL OF QUANTITY FOR SUBSTRUCTURE WATER PROOFING WORK / ROOF WATER PROOFING WORK
      Si.No Description Unit Quantity Unit Rate Amount Remark
      Bill of Quantity for Roof Water Proofing Work- Torch applied
      Roof Area Water Proofing Work-Horizontal
      1 Surface Preparation on horizontal area before application of water proofing work m2
      2 Concrete Screed laid to slope :- Supply and cast Light Weight Screed 50-100 mm thick as per project Specification m2
      3 Supply and apply one (or) two coat approved bituminous primer over the light weight screed , as per project specification m2
      4 Supply and apply one (or) Two Layer Approved Torch applied bituminous water proofing membrane over the primer surface, as per project specification m2
      5 Supply and apply one layer Polystyrene Heat Insulation over the membrane surface, as per project specification m2
      6 Supply and apply one layer Geotextile (or) Terram Sheet as a separation layer over the membrane surface, as per project specification m2
      7 Supply and cast 50 to 100 mm thick average screed 3 x 3 bay slope lines with flexal board , and filling the joints with sealant m2
      8 Dressing of Rain Water outlets Nos
      Roof Area Water Proofing Work-Upstands Vertical
      1 Groove cutting :- To Prepare groove cutting on upstands vertical surface lm
      2 Upstands :- Supply and Apply one coat primer + One (or) Two Layer mineral finished bituminous water proofing membrane to be terminated in the groove as per project specification lm
      3 Supply and fix approved aluminum flashing including sealant lm
      Total Work Done Amount for Water Proofing Work

      Bill of Quantity (BOQ) for Substructure Water Proofing Work

      Waterproofing Work

      Buildings is the method of forming a barrier over surfaces of foundations, roofs, walls, bathrooms and other structural members of buildings to prevent water penetrations through these surfaces. In summary, building surfaces are made water-resistant and waterproof.

      There are different type of water proofing method is used in Roofing work , Following BOQ sample for Roof is Torch applied bituminous Water proofing.

      A Bill of Quantities (BOQ) for Substructure Waterproofing Work is a detailed document used in construction projects to enumerate and quantify the various resources required for waterproofing the substructure of a building. This comprehensive document is crucial for cost estimation, tendering, and project management, providing a clear breakdown of materials, labor, and other essential elements

      “Here is a sample of the bill of quantity for Substructure Water Proofing Work , formatted as follows

      Click here below download button for to download this BOQ

      BILL OF QUANTITY FOR SUBSTRUCTURE WATER PROOFING WORK

      BILL OF QUANTITY FOR SUBSTRUCTURE WATER PROOFING WORK
      Si.No Description Unit Quantity Unit Rate Amount Remark
      Bill of Quantity for Water Proofing Work- Torch applied (or) Self adhesive membrane
      Horizontal Area Water Proofing-Basemen, Raft, Footing ,Foundation
      1 Supply and apply 50-100 mm thick plain cement concrete on Horizontal Surface as per project specification m2
      2 Surface Preparation on horizontal area before application of water proofing work m2
      3 Supply and apply one (or) two coat approved bituminous primer, as per project specification m2
      4 Supply and apply one (or) Two Layer Approved Torch applied (or) Self adhesive bituminous water proofing membrane over the primer surface, as per project specification m2
      5 Supply and apply one layer Geotextile (or) Terram Sheet as a separation layer over the membrane surface, as per project specification m2
      6 Supply and Apply 50-100mm thick protection screed over the separation layer , as per project specification m2
      Vertical Area Water Proofing- Retaining Wall , Column , Footing
      7 Supply and apply one (or) two coat approved bituminous primer, as per project specification m2
      8 Supply and apply one (or) Two Layer Approved Torch applied (or) Self adhesive bituminous water proofing membrane over the primer surface, as per project specification m2
      9 Supply and apply one layer bituminous (or) polypropylene protection board over the membrane surface, as per project specification m2
      10 Supply and apply aluminum flashing on Wall or Column Termination area , as per project specification lm
      Bill of Quantity for Water Proofing Work- Polyvinyl Chloride (PVC) Membrane
      Horizontal Area Water Proofing-Basemen, Raft, Footing ,Foundation
      1 Supply and apply 50-100 mm thick plain cement concrete on Horizontal Surface, as per project specification m2
      2 Surface Preparation on horizontal area before application of water proofing work m2
      3 Supply and Apply one layer geotextile as a base layer over the prepared area, as per project specification m2
      4 Supply and apply one layer PVC membrane over the geotextile, joints treated with glue and melting, as per project specification m2
      5 Supply and Apply one layer geotextile as a top layer over the PVC Membrane , as per project specification m2
      6 Supply and Apply 50-100mm thick protection screed over the separation layer , as per project specification m2
      Vertical Area Water Proofing- Retaining Wall , Column , Footing
      7 Supply and Apply one layer geotextile as a base layer over the prepared area, as per project specification m2
      8 Supply and apply one layer PVC membrane over the geotextile, joints treated with glue and melting, as per project specification m2
      9 Supply and Apply one layer geotextile as a top layer over the PVC Membrane, as per project specification m2
      10 Supply and apply one layer polypropylene protection board over the geotextile, as per project specification m2
      11 Supply and apply aluminum flashing on Wall or Column Termination area , as per project specification lm
      Total Value of Work Done For Substructure Water proofing Work

      Concrete Grades in Construction: What They Mean & How They’re Used

      Concrete is a mixture of cement, sand, aggregate and water, Grades of Concrete is defined as concrete mix proportion and the minimum strength of concrete at the end of curing period of 28days.

      The Concrete grade is can be known by calculating compressive strength of concrete, compaction factor test is used to find the compressive strength of concrete , unit of compressive strength is known as N/mm²

      Compressive Strength For Various Grade of Concrete

      Compressive Strength For Various Grade of Concrete
      Si.No Character of Concrete Concrete Grade MIX Ratio Compressive Strength
      1 Lean Concrete M -05 1 : 5 : 10 5 N/mm² 725 psi
      2 M -7.5 1 : 4 : 08 7.5 N/mm² 1087 psi
      3 Ordinary Concrete M -10 1 : 03 : 06 10 N/mm² 1450 psi
      4 M -15 1 : 02 : 04 15 N/mm² 2175 psi
      5 M -20 1 : 1.5 : 03 20 N/mm² 2900 psi
      6 M -25 1 : 1 : 02 25 N/mm² 3625 psi
      7 Standard Concrete M -30 Design Mix 30 N/mm² 4350 psi
      8 M -35 Design Mix 35 N/mm² 5075 psi
      9 M -40 Design Mix 40 N/mm² 5800 psi
      10 M -45 Design Mix 45 N/mm² 6525 psi
      11 High Strength Concrete M -50 Design Mix 50 N/mm² 7250 psi
      12 M -55 Design Mix 55 N/mm² 7975 psi
      13 M -60 Design Mix 60 N/mm² 8700 psi
      14 M -65 Design Mix 65 N/mm² 9425 psi
      15 M -70 Design Mix 70 N/mm² 10150 psi

      What are the Types of Levels used in Construction?

      There are different levels used in the construction, these levels are used to make the construction process easy and understandable, some of basic level as follows.

      LEVELS IN CONSTRUCTION

      LEVELS IN CONSTRUCTION
      BOB Bottom of Blinding
      TOB Top of Blinding
      BOF Bottom of Footing
      TOF Top of Footing
      PL Plinth Level
      GL Ground level
      EGL Excisting Ground Level
      NGL Natural Ground Level
      FGL Finished Ground Level
      SL Sill Level
      LL Lintel Level
      SSL Structural Slab Level / Slab Sill Level
      FFL Floor Finish Level / Finished Floor Level
      SFL Structural Floor Level / Structural Finish Level
      FG Finished Grade
      FL Finished Level
      GF Ground Floor
      MF Mezzanine Floor
      FF First Floor
      SF Second Floor
      RF Roof Floor
      TOW Top of Wall
      BP Bottom of Pool
      TP Top of Pool
      TB Top of Bench
      TK Top of Kerb
      NC Neck column


      How to Calculate Backfilling Quantity (or) Volume of Backfilling Quantity?

      Backfilling means the process used refilling soil (or) sand an excavated area, backfilling quantity usually calculating in m³ (Cubic meter), basically There are two type of backfilling method used in construction work.

      1.Handmade Backfilling – The Soil is refilling by Humans.

      2. Machinery made Backfilling – The Soil is refilling machinery.

      For Example:–

      Size of Footing

      Length (L) – 3.00 m,
      Width (B) – 2.50 m,
      Thickness /Depth (D) -0.75 m

       Size of Column

      Length (L) – 0.50 m
      Width (B) – 0.50 m
      Thickness /Depth (D) – 3.00 m

      Size of PCC

      Length (L) – 3.20 m,
      Width (B) – 2.70 m,
      Thickness /Depth (D) -0.10 m

      So, Volume of Backfilling is,

      Formula = Total Volume of Excavation Area – (Total Volume of PCC + Total Volume of Footing + Total Volume of Column) +10% of total Backfilling Quantity

      What is 10% – While doing backfilling compaction need 10% of More Soil for backfilling, so 10% of total Quantity need to add in calculation for backfilling quantity.

      Volume of Excavation = (3.20 +0.6+0.6) X (2.70+0.6+0.6) X (0.1+0.75+3.0) = 66.07 m³

                 Total Volume of Excavation = 66.07 m³

      Volume of PCC – Length X Width X Depth = 3.20 X 2.70 X 0.10 = 0.864 m³

      Volume of Footing – Length X Width X Depth = 3.00 X 2.50 X 0.75 = 5.625 m³

      Volume of Column – Length X Width X Depth = 0.50 X 0.50 X 3.00 = 0.75 m³

      So, Total Volume of back filling is = (66.70 – (0.864+ 5.625+0.75)) + 10%

      = (66.07-7.329) + 10%

      = 58.831 + 10% of Total Back Filling Area

      = 58.831 + (58.831 X 10%)

      = 64.71 m³ Total Quantity of Soil (or) Sand required For Backfilling

      So, TOTAL VOLUME OF BACK FILLING IS = 64.71 m³

      How to Calculate Excavation Work (or) Volume of Excavation Quantity?

      Excavation means work involving the removal of soil or sand or rock from earth, basically two types of excavation methods used in construction

      1.Handmade excavation – The Soil or sand or rock is excavating by Humans.

      2. Machinery made excavation -The Soil or sand or rock is excavating by machineries.

      Volume of Excavation is,

      For Example:-

      Size of Footing
      Length (L) – 3.00 m,
      Width (B) – 2.50 m,
      Thickness /Depth (D) -0.75 m

       Size of Column Length (L) – 0.50 m
      Width (B) – 0.50 m
      Thickness /Depth (D) – 3.00 m

      Size of PCC Length (L) – 3.20 m,
      Width (B) – 2.70 m,
      Thickness /Depth (D) -0.10 m

      So, Volume of Excavation is

      Formula = (Length of PCC + Working Space) X (Width of PCC + Working Space) X (Height of PCC + Height of Footing + Height of Column)

      What is working space and description of working space given below this article

      Volume of Excavation = (3.20 +0.6+0.6) X (2.70+0.6+0.6) X (0.1+0.75+3.0)

      Total Volume of Excavation = 66.07 m³

      What is Working Space: – Working space is the additional space provided between both edges of the excavation of the footing, which is used for the labor movement, using machinery, removing shuttering boards, pouring of concrete, etc.

      Working spaces are considered depending on structures varying between shallow and deep foundations.

      Shallow Foundation: – if the depth of excavation is less than 0.6m which is called the shallow foundation, for this condition working space is not required.

      Deep Foundation: – if the depth of excavation is up to 3.0m or above which is called a deep foundation.

      If the depth of the deep foundation is up to 3.0 m working space provides 600mm of all the four sides of the footings.

      If the depth of the deep foundation is more than 3.0 m working space to be provided 600+50mm (for every 1 meter) shall be added on all four sides of the footing edge. 

      How to Calculate Weight of Reinforced steel Rod

      Reinforcement Steel

      Usually 6mm, 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 32mm, 40mm dia size of reinforced steel bar used in construction, in this bars 6mm & 8mm are called as plain bar and 12mm, 16mm, 20mm, 25mm, 32mm, 40mm bars are called as rebar (or) Torsion bar , usually standard length of one reinforced steel bar is 12m.

      Plain bar:-  The steel bar is don’t have rip which is called as plain bar

      Torsion / Rebar:-  The steel bar having a rip which is called as torsion or rebar

      Formula to find weight of reinforced steel rod / unit weight of steel bars.

               Formula = D²/162, ( D-Diameter of steel bar )

      Unit Weight calculation of Steel bar @ 1m Length

      Unit Weight of 6 mm Steel bar  =  6² /162    =   0.22 kg/m

      Unit Weight of 8 mm Steel bar  =  8² /162    =   0.395 kg/m

      Unit Weight of 10 mm Steel bar =  10² /162  =  0.617 kg/m

      Unit Weight of 12 mm Steel bar =  12² /162  =   0.889 kg/m

      Unit Weight of 16 mm Steel bar =  16² /162  =   1.580 kg/m

      Unit Weight of 20 mm Steel bar =  20² /162 =   2.469 kg/m

      Unit Weight of 25 mm Steel bar =  25² /162 =    3.858 kg/m

      Unit Weight of 32 mm Steel bar =  32² /162 =   6.321 kg/m

      Unit Weight of 40 mm Steel bar =  40² /162 =   9.877 kg/m

      Standard length of one reinforced steel bar is 12m so,

      Unit Weight Of Steel Bars

      Unit Weight Of Steel Bars
      Dia of Steel Bar (mm) Type Unit Weight 1m Length Unit Weight for 12m Length Steel Bar Unit
      6 mm Plain Bar 0.222 2.664 Kg
      8 mm 0.395 4.741 Kg
      10 mm Torsion (or) Rebar 0.617 7.404 Kg
      12 mm 0.889 10.67 Kg
      16 mm 1.580 18.96 Kg
      20 mm 2.469 29.63 Kg
      25 mm 3.858 46.30 Kg
      32 mm 6.321 75.85 Kg
      40 mm 9.877 118.52 Kg
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