Single room |5 Building estimation items

single room plan
single room plan

    Given below the cross-section details of the single-room building.

    single room section
    single room section

    Based on the above details the following 5 building estimation quantities for the single room shall be calculated.

    1. Earthwork excavation quantity  for the foundation
    2. Concrete quantity for the foundation
    3. CRS (crushed rouble stone)  masonry quantity
    4. Concrete quantity in plinth beams
    5. 1st class brickwork in single room building superstructure.
    single room center to center plan
    single room centre to centre plan

    The longwall length from centre to the centre can be calculated =6+0.5×0.230+0.5x.230=6.23 m

    The short wall length from centre to the centre can be calculated =5+0.5×0.230+0.5×0.230=5.23 m.

    1.Earthwork excavation quantity in foundation :

    single room foundation plan
    single room foundation plan

    From the single-room building section, depth of foundation from ground level(GL) is 900mm (300 mm +300 mm+300 mm) and width of the foundation is 900 mm.

    Total length of one long wall for foundation excavation = 6.23 m+0.45 m+0.45 m = 7.13 m

    The total length of one short wall for foundation excavation =5.23 m- 0.45 m -0.45 m =4.33 m.

    So, total earthwork excavation quantity in foundation for long walls = 2 nos x 7.13 m x 0.9 m depth x 0.9 m width =11.55 cum

    Total earthwork excavation quantity in foundation for short walls = 2 nos x 4.33 m x 0.9m depth x 0.9 m width = 7.01 cum.

    So Total building estimation item, earthwork excavation quantity for the foundation of single-room building = 11.55 cum + 7.01 cum =18.56 cum.

    2.Concrete quantity for the foundation  :

    Total length of one long wall for foundation Concrete  = 6.23 m+0.45 m +0.45 = 7.13 m

    The total length of one short wall for foundation Concrete =5.23 m-0.45 m-0.45 m=4.33 m

    From the single-room building section, depth of concrete foundation is 0.3 m. 

    So, total concrete quantity for foundation for long walls = 2 nos x 7.13 m x 0.3 m depth x 0.9 m width =3.85 cum

    Total concrete quantity for foundation for short walls = 2 nos x 4.33 m x 0.3 m depth x 0.9 m width =2.33 cum

    Total building estimation item, concrete quantity for foundation is 3.85 cum + 2.33 cum =6.18 cum. 

    3.Crushed rubble stone masonry quantity 

    As per the single-room building section, CRS masonry is laid in 2 steps. 

    In 1st step crushed rubble stone ( CRS) wall width is 600 mm and height is 300 mm. 

    In the 2nd step, CRS wall width is 500 mm and the depth is 300 mm. 

    1st step CRS wall

    Long CRS wall 

    The total length of one long CRS wall in 1st step = 6.23 m+0.3 m + 0.3 m =6.83 m 

    So Total long CRS wall quantity in 1st step=2 nos x 6.83 m x 0.6 m x 0.3 m = 2.45 cum 

    Short CRS wall

    The total length of short CRS wall in 1st step = 5.23 m – 0.3 m -0.3 m =4.63 m. 

    Total short  CRS wall quantity in 1st step =2 nos x 4.63 m x 0.6 m x 0.3 m = 1.66 cum

    2nd step CRS wall

    Long CRS wall  

    The total length of one long CRS wall in 2nd step = 6.23 m+0.25 m + 0.25 m =6.73 m 

    So Total long CRS wall quantity in 2nd step=2 nos x 6.73 m x 0.5 m x 0.3 m = 2.01 cum 

    Short CRS wall  

    The total length of short CRS wall in 2nd step = 5.23 m – 0.25 m -0.25 m =4.73 m. 

    Total short  CRS wall quantity in 2nd step =2 nos x 4.73 m x 0.5 m x 0.3 m = 1.41 cum

    Total CRS masonry quantity 

    So Total building estimation items, CRS masonry quantity for building including 1st and 2nd step =2.45 cum +1.66 cum +2.01 cum + 1.41 cum =7.53 cum. 

    4.Concrete quantity in plinth beams 

    As per the section, the depth of the plinth beam is 600 mm and width is 400 mm. 

    Long plinth beam 

    The total length of long plinth beam  = 6.23 m+0.20 m + 0.20 m =6.63 m 

    So Total long plinth beam  concrete quantity  =2 nos x 6.63 m x 0.4 m x 0.6 m = 3.18 cum 

    Short plinth beam 

    The total length of short plinth beam  = 5.23 m – 0.20 m -0.20 m =4.83 m. 

    Total short  plinth beam concrete quantity =2 nos x 4.83 m x 0.4 m x 0.6 m = 2.31 cum

    Total plinth beam quantity 

    So Total building estimation item, plinth beam concrete quantity for building=3.18 cum +2.31 cum =5.49 cum

    5.1st class brickwork in the superstructure 

    As per the given section, the brick wall thickness is 230 mm and height is 3.5 m. 

    Long brick wall 

    The total length of long brick wall =6.23 m+0.115 m + 0.115 m =6.46 m 

    So Total long  wall brickwork  quantity  =2 nos x 6.46 m x 0.23 m width  x 3.5 m height  = 10.4 cum 

    Short brick wall 

    The total length of short brick wall  = 5.23 m – 0.115 m -0.115m =5 m. 

    Total short wall brickwork quantity =2 nos x 5 m x 0.23 m x 3.5 m = 8.05 cum

    Total 1st class brickwork quantity 

    So Total building estimation items,  1st class brickwork  quantity for building=10.4 cum +8.05 cum =18.9 cum

    Conclusion :

    So by the above process, we can calculate  5 building estimation items of one single room. 

    Also Read more topics :

    About Ashwini Kumar

    Ashwini Kumar is a graduate in civil engineering from NIT Warangal. He has 8+ years of experience in the construction field. He is the author, founder of the Easy Home Builds blog

    View all posts by Ashwini Kumar

    6 Comments on “Single room |5 Building estimation items”

    1. I am not sure where you’re getting your info, but good topic. I needs to spend some time learning much more or understanding more.
      Thanks for wonderful information I was looking for this info for my mission.

    Leave a Reply

    Your email address will not be published. Required fields are marked *