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Nairaland Forum / Nairaland / General / Properties / How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. (67458 Views)
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How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Nighouseplans(m): 12:21pm On Feb 03, 2018 |
What is the number of blocks required to complete this building?This is a common question asked by prospective home owners especially after the building design phase.It is advised you use trusted professionals for your building project. This saves you time and money. However, if you are taking charge of material procurement or just wish to confirm number of blocks required for your project, these 2 simple steps outline the process outlines the steps you need to take. A simple 1 bedroom apartment is used in this case for clarity. These are the two basic steps: Step 1: Calculate wall areas. Step 2: Divide total wall area by area of one block. Step 1: To calculate wall areas, we will calculate the total length of walls and multiply by wall height(see plan image below). Area=Length x Breadth, In this case since we are dealing with height, Area=Length x Height Calculate Length: Looking at figure 1 below,we take length of vertical walls first(from left to right), then horizontal walls(from top to bottom) Wall 1= 8000mm , Wall2=7755mm, Wall 3=3675mm, Wall 4=4100mm, Wall 5=3900mm, Wall 6=7950mm Wall 7=3525mm, Wall 8=5975mm, Wall 9=5600mm, Wall 10=4425mm, Wall 11=4200mm Sum of all wall length is=59,105mm. Use height of wall at 3000mm. Rough wall area (Wall area including openings) =59105mmx3000mm= 177,315,000mm Remember we have some wall openings at the entrance, doors and windows. We have to subtract areas for these to get the actual wall area: We have 6 doors with measuring 900mmx2100mm: 6x900mmx2100mm= 11,340,000mm*2 We have 8 windows measuring 1200mmx1200mm: 8x1200mmx1200mm= 11,520,000mm2 We have 1 window measuring 600mmx600mm: 1x600mmx600mm= 360,000mm2 We have 1 opening measuring 3300mmx2100mm: 1x3300mmx2100mm= 6,930,000mm2 Add up all opening areas: Opening area: (11,340,000+11,520,000+360,000+6,930,000) mm2= 30,150,000mm2 Subtract opening area from the rough wall area: Actual ground floor wall area: (177,315,000-30,150,000) mm2= 147,165,000mm2 Area of foundation walls: Also,remember we have a foundation. The foundation area depends on the number of courses laid. For this building, we use four courses of block wall as foundation (Strip foundation). This is roughly 900mm high. We simply multiply the perimeter of walls we got in step 1 by the height of the foundation wall. Area is still length x height. But now the height is 900mm. Area of foundation wall: 59105mmx900mm=53,194,500mm2 Total wall area = Ground floor wall area+Foundation wall area =147,165,000mm2+53,194,500 mm2= 200,359,500 mm2 Step 2: Area of one block is 225mmx450mm= 101,250mm2 Number of blocks is total wall area divided by area of one block: Hence, number of blocks is:200,359,500/101,250= 1978.86 blocks That’s approximately1,980 blocks. You may want to add a certain percentage for breakages and off-cuts. If you use good quality vibrated blocks you only need to add a little. Wish you success on your building project.Thank You! https://nigerianhouseplans.com/calculate-number-blocks-required-building-project-2-simple-steps/ Cc Lalasticlala Ishilove Semid4lyfe Obinoscopy 68 Likes 26 Shares
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Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Obinoscopy(m): 2:44pm On Feb 03, 2018 |
Wow this is interesting. Thanks OP. For the likes of those that don't like Maths, I guess they've seen an additional reason why they need to like the subject ![]() 31 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by dwas: 3:35pm On Feb 03, 2018 |
This is nice 1 Like 1 Share |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by benny4wax(m): 3:51pm On Feb 03, 2018 |
Wow 1 Like |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by benny4wax(m): 3:52pm On Feb 03, 2018 |
Wow... What will it cost you to be a part of this great opportunity. What do you stand to gain from grabbing this great opportunity. How would you know if you don't ask? Swiss golden pays my bills. 0-8-1-4-6-5-0-7-9-6-6 (WhatsApp only). 1 Like 2 Shares
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Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Dottore: 3:53pm On Feb 03, 2018 |
Ok 1 Like |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Xtopher123(m): 3:53pm On Feb 03, 2018 |
Give your Project to a quantity surveyor and don't bother about all these.. What about Frame buildings? Do you also do the calculation yourself?.. Nigerians we like cutting corners.. 23 Likes 3 Shares |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Nobody: 3:57pm On Feb 03, 2018 |
You can also choose not the remove the calculation for doors and windows. Use that for the extra blocks that you’ll need for offcuts. 15 Likes 1 Share |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by sulakishop(m): 3:57pm On Feb 03, 2018 |
At last, a reasonable topic made front page today 24 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by happney65: 3:57pm On Feb 03, 2018 |
hmmmmmmmmmmmmmmm 1 Like |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by TigerTears(m): 3:58pm On Feb 03, 2018 |
Guy u no dey tire? Which kine cow u be na 1 Like |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by saydfact(m): 3:58pm On Feb 03, 2018 |
On point OP.. To reduce figures, you can use meters where 8,400mm = 8.4m and 225mm =. 225m 8 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by ochardbaby(m): 3:58pm On Feb 03, 2018 |
Good information,but those buildings from far go still hear when from helpers @ Home. |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Perge(m): 3:59pm On Feb 03, 2018 |
Like if you skipped those numbers ![]() 20 Likes 1 Share |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Nobody: 3:59pm On Feb 03, 2018 |
Xtopher123: Quantity Surveyor is the most useless profession in small self builds. I encourage no one waste their money on such nonsense. The cost to hire a quantity surveyor can be used towards the project. PS: I’ll be waiting for the associate members of Nairaland QS to respond with their typical hunger induced vitriol ![]() 12 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by churchee: 3:59pm On Feb 03, 2018 |
This is not my job, my job is to provide the money required. Everybody should eat, if one cheats you, shame on him. 5 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Nobody: 4:00pm On Feb 03, 2018 |
This is the kind of thread we need on front page |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Bayajidda1: 4:01pm On Feb 03, 2018 |
![]() Perge: 1 Like |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Beno3: 4:01pm On Feb 03, 2018 |
Good one ![]() |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by olatwo(m): 4:02pm On Feb 03, 2018 |
Nice |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by georgeceekay: 4:03pm On Feb 03, 2018 |
Xtopher123:its not about cutting corners. Its basic knowledge. At least so you can relate with what the supposed professional says. Don't be a mumu abeg! 23 Likes 1 Share |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by SafetyFirst(m): 4:03pm On Feb 03, 2018 |
By Area, One square meter will take 10 blocks. 4 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Justbeingreal(m): 4:08pm On Feb 03, 2018 |
Mehn, me and calculations ehn nor de agree, if i have the opportunity to go back to the university for a second degree I wouldn't near any course with calculations. |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by InvertedHammer: 4:11pm On Feb 03, 2018 |
Good information. Verily...there is something about mm that irritates me. I find inches more appropriate. / 3 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by mrnuur(m): 4:12pm On Feb 03, 2018 |
SafetyFirst: You a qs? |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Unlimited22: 4:12pm On Feb 03, 2018 |
At last. A topic worth reading. |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by duduwest(m): 4:12pm On Feb 03, 2018 |
Sometimes this calculations don't work because of where the bricklayer will need to break the block into two and the second side will not be useful most times blocks break unexpected 2 Likes |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by Elesu: 4:15pm On Feb 03, 2018 |
do all bricklayers know this? |
Re: How To Calculate Number Of Blocks For Your Building Project In 2 Simple Steps. by ncoolsome(m): 4:18pm On Feb 03, 2018 |
Op we should always let d professionals do their job before on contractor wld say "u sabi calculate abi" then end up using one bag of cement to mix 100 bags of sand.. 1 Like 1 Share |
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