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Nairaland Forum / Nairaland / General / Properties / How To Estimate The Quantity Of Blocks, Cement And Sand For Your Diy Project (213 Views)
How To Estimate The Quantity Of Blocks, Cement And Sand For Your Diy Project / How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. / 6 Tips To Estimate The Cost Of Building A Duplex In Nigeria (2) (3) (4)
How To Estimate The Quantity Of Blocks, Cement And Sand For Your Diy Project by Harneyprojects: 11:12am On Jul 18, 2020 
The latest trend in the building construction industry is the Do it yourself (DIY) approach, where homeowners tend to get themselves directly involved in simple building construction processes. The first step in any building construction process is the estimation of the building construction materials and services. In this post, I would break down the cost estimation process for blocks(9inches), cement and sand of a simple floor plan. The height of a building is generally specified in the architectural design but for this estimation, we shall assume a height of 3.125m all dimensions in the simple plan below are in millimetres https://harneyprojects.com/blog

Re: How To Estimate The Quantity Of Blocks, Cement And Sand For Your Diy Project by Harneyprojects: 1:54pm On Jul 18, 2020 
BLOCKS – Step 1 – Obtaining the Area of the block wall We obtain the area of the wall by multiplying the height x the wall perimeter (The perimeter is a summation of the length of all the walls in the floor plan) The perimeter of block wall = 24.3m Area of the wall = 24.3 m x 3.125m = 76m2 We then subtract the area of the Openings (windows and doors) from the wall area (Obviously, there won't be blocks laid in the window and door area) The width of the window and doors is shown in the simple floor plan, the heights are generally specified in the architectural design. For this calculation, we shall assume a door height of 2.1m and widow height of 0.9m Total openings (Area of windows + Area of doors) =9.5 m2 Total Area of Block wall = Area of the wall – Area of openings = 76m2 – 9.5m2 =66.5m2 Step 2 – Obtaining the number of blocks required Mathematically, 10 numbers of 9inch blocks make up 1m2 of the wall.

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