₦airaland Forum

psalmuel2018:
I am not sure about your analysis bro!
I have a HND in quantity surveying already but for the love of building i have enrolled for a top up in building tech.

A plot is 120 ft x 60 ft which is 36m x 18m.( lenght x breadth)
since we are determining fence we are to work with perimeter which is (36m + 18m ) x 2 = 108m (perimeter of a plot)

for two plots we will have 72m x 18m ( the lenght and the breadth) (72m + 18m ) x 2 =180m (perimeter of two plots)

since the perimeter of our two plots is 180m, now we need to determine the height of the fence which will lead us into obtaining the area.( fence is measured in area).

180m(perimeter) x 3m (standard height of fence) = 540m2.

Area of fence is 540m2.


a square metre of fence takes 10 blocks, so for 540sqm we need 10 x 540 = 5400 blocks.( deductions have not been made in respect of gate openings)

* I stand to be corrected

cement 85 bags
sand 30 tonnes

fabby101:
For the number of blocks.

Land size 120*60ft*2plot
240*120ft

Convert to mm to know total area
240ft=73152mm
120ft=36576mm

Add together 109,728mm

Wall height standard 3m=3000mm

Multiply with total area
109728*3000=329,184,000mm

Size of a block 230mm*450mm=103,500mm

Divide total area with block size

329,184,000/103,500=3180.52

App you will need 3,200 blocks.

Fadmus Global Ventures! Building Nigeria!!

I am not sure about your analysis bro!
I have a HND in quantity surveying already but for the love of building i have enrolled for a top up in building tech.

A plot is 120 ft x 60 ft which is 36m x 18m.( lenght x breadth)
since we are determining fence we are to work with perimeter which is (36m + 18m ) x 2 = 108m (perimeter of a plot)

for two plots we will have 72m x 18m ( the lenght and the breadth) (72m + 18m ) x 2 =180m (perimeter of two plots)

since the perimeter of our two plots is 180m, now we need to determine the height of the fence which will lead us into obtaining the area.( fence is measured in area).

180m(perimeter) x 3m (standard height of fence) = 540m2.

Area of fence is 540m2.


a square metre of fence takes 10 blocks, so for 540sqm we need 10 x 540 = 5400 blocks.( deductions have not been made in respect of gate openings)

* I stand to be corrected