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How to calculate numbers of blocks from a building plan.

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Most asked question from a would be house owner is always how many blocks do I need to get my building completed. Hence this topic is written with illustrations to make it easy for you to do

the calculations yourself from the plan your architect gave you.
The plan above is for a 2 bedroom bungallow, so we are going to start from the basics having in
mind these factors-
i)The lenght of a block is 0.45m or 450mm or 18″
ii)The width of thickness varies -150mm or 6″ and 225mm or 9″ which are most common.
ii)Taking for a general or average purpose, the blocks laid from foundation to dpc(german or
oversite concrete) is 4 coaches/levels. From dpc to the base of window another 4 coaches,from
base of window to top of window another 5 coaches, then from top of window to base of roof
another 3 coaches, neglecting the lintel or concrete on top of window.
Now with these parameters let calculate the plan above which has a wall of 150mm or 6″ all
Add the length and breadth of the blockwall for external and internal
Therefore (A)9,400mm +9,600mm(B)+9400(C)+9600(D)=38,000mm or 38m
Now add the internal walls too
(Follow the grid lines and check the corresponding dimensions on plan remember 150mm is the
block width)
(Grid 7)150+3600+150+150+3600+150=7,800mm or 7.8m
(Grid 6)1350+150+2250+150+825+675+150=5,550mm or 5.55m
(Grid 1b)800+2400+1300+900+100=5,500mm or 5.5m
(Grid 2)2600+900+100+150+100+900+500+150=5,400mm or 5.4m
(Grid 3)1800+150+650+900+250+900+1450=6,100mm or 6.1m
(Grid 3b-Kitchen)900+50+1200+50+150=2,350 or 2.35m
(Grid 7b toilet)1800 or 1.8m
Total internal walls=34,500mm or 34.5m
Therefore Total walls=38,000mm +34,500mm=72,500mm or 72.5m
Now for the first 4 coaches to dpc level the wall will run right through, i.e the spaces for
doors or windows are not left out (n/b- blocks are used in relatively strong and stable soil not
waterlogged area that requires concrete instead).
Divide the sum by 450mm to know the numbers needed for one level/layer/coach of blocks
72,500/450=161 blocks
From dpc level to roof lets take the numbers of coaches to be 4+5+3=12 coaches
then multiply the numbers of blocks for each coach above by 12
161 x 12=1932 blocks
Don’t forget we have windows and doors spaces which we need to remove,for each window of 1200mm
take numbers of the block to be 14 (i.e 1200/230=5.2 and 1200/450=2.6 ,5.3 x2.6=14 approx
Now count the numbers of 1200mm windows and multiply by 14
Total numbers of 1200mm windows as counted on plan is 12 (note 2400mm window was taken as two of
1200mm window)
i.e 11 x 14 =154 blocks + 7 blocks for 600mm window for toilet. Total=161 blocks
Now calculate for doors,Numbers of blocks for a door of 900mm is 18.
height of a door(2100/225=9)+width of a door (900mm/450mm=2). so 9 x2 =18 blocks for each door.
Multiply 18 by numbers of doors=18 x8=144 blocks
Add 144+161=305 blocks,then remove from total blocks of 644 (for dpc) + 1932
Total numbers of blocks reqd=2,271 blocks
For a quick calculation, having the entire length to be 72,500mm. Take for a bungallow total
lenght from foundation to roof to be 1,200mm +3000mm=4200mm
Then calculate the surface area which is 72,500 x 4200 and convert to meters
72.5m x 4.2m=304.5m2
Remove surface areas of windows and doors
For window, height is 1.2m and total is 11
i.e 1.2m x 1.2m x 11=15.84m2 +0.6 x0.6(toilet window)=16.2m2
For doors, height is 2.1m while width is 0.9m
i.e 0.9 x 2.1 x 8(nos of doors)=15.12
Total area for doors and windows=16.2m2 +15.12m2=31.32m2
Remove 31.32m2 from 304.5m2=273.18m2
Now divide this by surface area of a block which is 0.225 x 0.45=0.10125
The blocks reqd caculated by this method is 273.18m2/0.10125=2,698 blocks
Note a difference of about 400 blocks from the two calculations. Of course you can’t get exactly
the numbers you need but the first method is close to it. And calculations are not 100% true
because of these factors
1-The mortar space was not considered
2-Blocks that will be wasted due to breakages e.t.c

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169 Responses to “How to calculate numbers of blocks from a building plan.”

  1. engr. aliu Says:

    man you a doing a wonderfull job but dont take out of the table for we engineers, but you a good keep it up

  2. niyi Says:

    a chartered QS will calculate the same way. thank you for a job well done

  3. dapo ajelero Says:

    Your works has being providing great information that are accurate. Thanks and God bless

  4. Yusuf Says:

    I really like this. Thanks a lot.

  5. emma Says:

    Thank you.

  6. Nwajeri Nonso Says:

    what an emperical formaula. thank u

  7. sunday Says:

    How many 6inches block and 9inches block can i use to raise two flats each with 3 bedroom from german floor level?

  8. efe Says:

    thank u for revealing this method of calculations, now i know what to plan and budget for my building.

  9. kunle Says:

    can u train a layman briclayer

  10. emma Says:

    No I can’t but I have bricklayers such person can learn from.

  11. Prince laiyembi Says:

    you dnt want the contractors to earn 4m thetr fruit.

  12. Yusuf Says:

    Thanks, I have applied it and worked 97%.

  13. Phillips Uguomore Says:

    Is great having people like you in this our part of the world.
    Keep the flag flying.
    Thank you.

  14. G. Harrison Says:

    This is simply brilliant! I am amazed! Thank you

  15. emma Says:


  16. emma Says:

    This site is not to disenfranchise builders but is to encourage more Nigerians and Africa in general to build their own houses.

  17. Onoide Says:

    Knowledge is power and information a weapon when in the hands of the wise. Having the quality of information you are supplying on your site will definitely keep us ahead of fraudulent building contractors. But I dare to say that supervision can also go a long way in ensuring getting the right kind and quality of building services we require.

  18. chidi Says:

    I prefer method 1 plus 10% to make up for differences and breakages. This would give us 2271*227=2498. Lets say 2500 blocks which is fair and much more realistic than method 2. I’ll write an excel prog to do this calculations for me for every plan. I will find a way to share when I do.

  19. oformezie martins Says:

    Man, you are doing a wonderful job. I wonder if there is any nigerian that can do this without asking for money. God will continue to bless you.
    Please tell me, how many blocks can I use to put up a 4-bedroom flat.

  20. Paul odoom Says:

    Man, dis is a free Engineering course online, u ar gud, keep d gud wk up

  21. Maikware Says:

    I appreciate what you have done and want to be informed well be the actual name of the levels of blocks laid i.e ‘coaches’ or courses? As a teacher I will assume all you said to be true and I do not see the interchanging of the above words to be okay for fear of misinformation. Keep up with the good work

  22. Maikware Says:

    I appreciate what you have done and want to be informed well about the actual name of the levels of blocks laid i.e ‘coaches’ or courses? As a teacher I will assume all you said to be true and I do not see the interchanging of the above words to be okay for fear of misinformation. Keep up with the good work,

  23. Ogunmilua Says:

    I’m short of words, don’t know what to say to you, God Bless you for posting this but pls don’t remove anything from here as we engineers will always need it.

  24. Engr Adebayo Says:

    U doing a gud job.

  25. balogun lukman Says:


  26. Chukwu peter Says:

    Thank you for your practical knowledge inculcate in me.

  27. Tolu gbolasire Says:

    This is very good!u have real orientation about building.thanks, u ar a blessing

  28. Odunayo Says:

    I really enjoyed this online,thanks you ve really help me.

  29. Engr Jayeola Afolabi Idris. Says:

    I credit you by all ur calculations and explanations. Even a novice will grab all your steps.you are really helpful to those outside there. Thanks for ur efforts.

  30. danladi Says:

    hello guyz am Dan,a quantity surveyor in making.i must confess dis is brilliant its my job buh ur doin it so perfectly i learnt new tins 4rm u.kip it up.

  31. Dogo abdulkabir Says:

    An ideal builder dose’nt cheat. Please know that we calculate for un-avoidable waste thanks.

  32. Dogo abdulkabir Says:

    An ideal builder dose’nt cheat. Please know that we calculate for un-avoidable waste thanks. N.B. You did a nice job here

  33. kunle Says:

    y dnt u teach every Nigerian hw to design building too

  34. kunle Says:

    my point is stop making it too simple,let it be more technical so that its the real professionals or construction students it wil appeal to and boring/confusing to those who don’t have any business there. Let them get the service of professional!

  35. Engr. Seth Chuks Says:

    Though, you’ve tried but want to remind building clients that they should avoid quack contractors, because they’ve no sound jobs to provide rather than waste products. For me I make sure I charge my various client what will due for my work expertise and render my best service to them. Honestly, all my client all over the globe love me and my artistic hand work. It is GOD’S doing. Cheers.

  36. Adegoke I.A Says:

    Infact i am very greatfull keep it up, because as a Building Student u have to know this.

  37. Jolomi felix Says:

    Truely you are good and i love you

  38. Amaechi kingsley Says:

    Thanks man. But I think there is a little mistake in the first calculation that changed the result of second calculation. You added the dpc blocks twice. Because if the total girth is 72500mm/450=161blocks per coach, multiply by 12coaches=1932.then diduct the openings which is 305=1627blocks. Then add 5% waste.

  39. Isiorji charles Emeka Says:

    What a gr8 job well done, i am thrilled about this calculation, most esp. We in Building Technology, and also a Teacher of Brick, Blocklaying and concrete at GTC in Enugu, it has created a tremendious value to breake down my lession plan when it comes to calc. Of blocks, and i prefer mtd1. Kp d gud wrk.

  40. abioye paul Says:

    pls i need answer to this question,how block should be lay into foundation before dpc.in your write up you put 4 coaches/levels but from my research i observe that 3 coaches of block is put into the foundation before dpc.pls any reaction to this

  41. emma Says:

    There is no standard on the numbers of block it depends on the design, topography or level of ground and what you can afford. You noticed this in your area because is highland.

  42. emma Says:


  43. Hilder Says:

    Thanks very much Emma, for what you have describe on how to calculate a number of blocks in a plan, most of time i use to ask my friend to do it for me but now i thank you i will start to calculate my self.
    keep it up
    i love it.

  44. Rotex Says:

    Tanks i love ur article God bles u o

  45. Rotex Says:

    Pls sir, i want u 2 explain 2 me how to convert metre cubic to tones. eg 3.8m3 to tones how ll i go abt it sir….

  46. PrinceSantus Says:

    Tankz 4 dis wonderfull work i am really impressd 2 see dat we hav compitent engineers like u. Keep up d civil engr. Flag flaying.

  47. shakiru Says:

    Sir,I am in need of suitable plan drawing for a land of 30ft by 120ft such that the frontage or half of the land is needed to be used for a four bedroom flat while the remaining half is needed for mini flat of room and parlour,kitchen toilet and bath en suite.And the cost for the accomplishment of the project.

  48. Isa D G Says:

    Weldone a very good submission you have and highly educating , the only observation though is the layer of block is “course” and not “coach” as you kept repeating believe it must be a typo .

  49. Mike kit Says:

    You save a society if not a world for this highlights. More than a job well done. Thank you so much man.

  50. Engr. Stan O'Edrah Says:

    Its good for every 1 to learn d basics, howeva, I must caution here dat drwns r not always tis simple and a Civil Engr. must be consulted when d need arises.

  51. Ali King Says:

    Thats great of you. Its very helpfull to some of us who are practicing as quantity surveyors. Bravo

  52. Pat Efa Says:

    Hi Emma,
    I av bn receiving ur e-mails, thanks so much. I av a worry that your site posts are too simple, please be more tecnical, you are rather strenghtening the arm of quacks. There are professionals in the field, thanks.

  53. Srabon Mahmud Says:

    Thanks for this work.

  54. Surv. Nelson Says:

    I must commend u, u did a nice job and calculations here, but u did not deduct the Lintels(concrete work) because they are not block work. If u do thatu will get the acurate number of blocks required. Thanks

  55. Olajuwon Y.Owoseni Says:

    I really appreciate your calculations and don’t even bordered to pay attention to some people’s crazy comment you did this because you wanted many people success in life only GOD can pay you back all your effort of generocity,may GOD bless you,your family and your unborne generations thank you sooooo much.

  56. shuaibu aminu Says:

    thanks 4 d good job

  57. Ramotalahi Says:

    An excellent task, very simple and understandable


    U did a very wonderful job. God will continue to guide u.s.

  59. kasali fola Says:

    sir,you are amazing pouring your beautiful mind out without a kobo.
    God is watching you don`t worry

  60. engr Abu Harun Says:

    Thanks. An easier way is just to keep in mind that ‘for every 10 feet, 6 blocks are required. Hence cal the total length of the wall, multiply by 6 and divide by 10. Example for the length of 72500mm equals to 238feet. Now no of bloks =237*6/10 =143(each coache) now for 16 coache =143*16=2288. This has taken kia of d space for mortar. Just subtract the no of bloks for doors and windows. Hope this will be helpful

  61. tonia Says:

    nice job.i hv learnt alot.kip it up

  62. Banki Says:

    If we have 1/10 of you kind of person then this world will be a better place, you are really “EMMANUEL”. May GOD bless you.

  63. Etamishere.A. John (Qs) Says:

    I really appreciate dis wounderful informatns giving By U my Honorable Emma Do. Thanks keep it up.

  64. Theophilus Says:

    My dear, I appreciate your good wood. Your information is helping lay men to have rudimentary knowledge about building so that they will not be cheated out completely. God bless you mightily.

  65. qs paul m Says:

    it helps a lot to have people like you thank you very much.

  66. George Victor, a fresh graduate frm AIFPU, EBONYI STATE. Says:

    I pray God 4 his gr8t wisdom on u. Pls forward dis page 2 my e-mail box. Tnks

  67. ALI DAMBATTA Says:

    your enlightment on this simple small building plan would definately encouraged sincere and honest building contractors.

  68. Bldr.F. N. Emeka Says:

    gud job! u did well keep it up an God will improve u an ur tarlent

  69. Arc Ofagbonmu Ben Says:

    Man you are doing a great job here, never look or mind your critics they are cowards, keep it up.

  70. Gauhar khan Says:

    good job….well done

  71. ife Says:

    i need a q.s to train me so that i can become an expert on estimating, kindly hook me up with one.

  72. ife Says:

    wel done

  73. dmj Says:

    U’v done a gud job of educating us.bt wat is dpc and oversite concrete,how can one achieve d foundations 2 oversite concrete,is hard core important.

  74. aydot Says:

    thanks this is a study material, God bless u.

  75. Q/S I.b Says:

    D great Qty-Syr, dats what you are. Keep it up

  76. Regina Says:

    Quite encouraging. I am glad i looked this up, really educative, God would widen your knowledge more.Thank you

  77. Justice Says:

    Its nice. Am a Qs undergraduate. I love what u are doing. God bless u. Pls enlighten us on celin and noggings

  78. Anifowose sadiq Says:

    I must confess you are my God sent, have been battled with this for a year. This is a good job.you are the first person to give analysis or details of what have been willing to know thanKs so much you are the best by God grace.

  79. emma Says:

    Thanks Sadiq, I am happy you find the information useful.

  80. emma Says:

    @Ife you can call this man Q.S Olayode-08023127251

  81. jonny Says:

    Well, am really fulfilled for this calculations .this would help me out for all my proposed plan of putting up some structures.

  82. Alade saidi Says:

    Well done and may God reward u aboundantly

  83. Inni Says:

    This gives me great encouragement to build. Never mind Nigerians who are overwhelmed by the cheating culture will not like this but keep it up. God will amazingly reward you and many genuine people will come paying you for this services you give out free. Imagine how many building students appreciate this. Keep it up.

  84. Amatus Says:

    Very educative for prospective house owners. Thanks

  85. Arc. Salihu I.A Says:

    You have done a great job keep it up

  86. Taofeek Says:

    What a good job you have done here, but please let me know how many blocks will be needed for a 3-bedroom flat

  87. Gt Says:

    Realy amazing explainations here. As a building student,I must confess that it help me in my exams work and still is. ChEers!

  88. fadare116 Says:

    i really loved this, thank u.

  89. Sam Sashi Says:

    i lack word to say, bu thanks it realy works

  90. Opaleye Lukman Says:

    I wld want 2knw if u entertain calls c0s I’ve sent a number 0f unreplied messages 2u b0rdering 0n hw I culd be abs0rb in ur firm as an Intern 0r link 2 an0ther pr0fessi0nal, still an Undergraduate 0f Building wt d zeal 0f acquiring kn0wledge!

  91. samuel sunday Says:

    am very happy for this thank so much.more grace to your elbow.

  92. uchechukwu Says:

    ur rilly doing a gud job here, kip it up

  93. Ikama A Says:

    Oh, at last a complete solution,am very greatful for your wisdom,little but mighty,thanks and God bless. Bravo…..

  94. Matthew Edmond Says:

    Hw do i caculate hw mny blck’s, depending on the building plan?

  95. Iyakise Says:

    Nice work man. With method two just multiply your total area by 9. because 9 blocks(both 6″&9″) make 1sqm.

  96. Mark kelvin. Says:

    You people are trying alot thanks for that.what is the standard measurement of a head room.

  97. segun Says:

    Mr Emma, u are blessed

  98. Abbey Says:

    Tnx 4 d info,it gives prospective home owner insight to a meanful planning & estimate

  99. Chibuzo Says:

    you’ve done an excellent work my man,you don’t know how much you’ve helped me out. i’ll like to subscribe to your page or website if there is any for more info. thank you my man

  100. moses onifade Says:

    u are doing serious work on quantities of materials which QS will not revealed to people.Thanks so much for a GREAT JOB.

  101. Emmanuel Says:

    U hav impact a lot in my memory .thanks

  102. Emmanuel Says:

    Plz can i hav ur contact

  103. emma Says:

    08026228682. omionick@gmail.com

  104. Goodie Adama Says:

    Wow, this is brilliant. One could self build. Have considered putting together a “fool’s” guide to self build, of course one would have professionals to certify each stage of the construction.
    Thank you mate, if anything at all this gives one some idea of costs and would help improve relation with builders / contractors.

  105. seun Says:

    exactly wot i need for my project. much thx Just found out bou ds. Check dis out. Am inviting u to Make money while on break now……..http://www.Paynized.com/?invite=43057

  106. Elias Joachim Says:

    Nice one,it of great help to users “gratias”

  107. israel rock Says:

    Gud job.Bt ma research says there should b three coaches before dpc

  108. iyanda gbemisola Says:

    This is a nice job

  109. Umar Says:

    Nice, great analysis

  110. Chima Says:

    Dis is a great idea, u are a true icon in building. Pls keep it up. Thanks.

  111. sam Says:

    next work indeed, keep it up

  112. Mr. Simple Says:

    This is a brilliant work you have done here and d fact dt it’s free makes you an hero.
    I was so eager to know how many blocks and bags of cement I’ll need for this little project of mine so as to budget d little fund I ve for dis project and to maximize it. I was propelled to google so ur site appeared on d results and it’s really helpful.
    I followed d history of this post and realized dt it was posted in 2010 and still receives comments and readership till dis moment. Holy God can reward u for dis. I can’t wait to ve d e-mail in my inbox.

  113. Nkem Says:

    Wow! You have just done my engineering a whole lot of good. God bless you. Am bookmarking your blog right away, then I’ll preach your gospel to my young engineering friends/colleagues.

  114. Oni from UK Says:

    With all sincerity and appreciation, you have done a remarkable job. I just goggle this question, not knowing a valuable resource like this from a Nigerian will be available on the web. One does not need rocket science to understand every bit of what you have itemized here. It has given any serious minded fellow an estimate of what it takes to have a house. More grease to your efforts. For those complaining about professionalism, the author of the article has rightly pointed out that this piece is not a substitute for professional jobs. It serves a mere purpose of guiding prospective house owners. Once again, many thanks.

  115. mrs isa Says:

    Good job bro. Thanks.

  116. Samuel obinna Says:

    that’s a good one. i have learned a lot from this

  117. enoma Says:

    plz i need a 4 bedroom bungalow (en-suite) plan. you can reach me on 08034974094

  118. Engr Harry Says:

    Thanks for these piece of information, I would loved to call you, I want to learn more.

  119. Dr. Ezeukwu jahswill chisom Says:

    exellent!! Oga engineer you deserve one bottle of beer, what a fascinating explanation! I love it,
    God bless you

  120. Dr. Ezeukwu Jahswill Chisom Says:

    Excellent!!! Engineer you deserve a bottle of beer, What a fascinating delivery, i love it.

  121. Engr Johnterry Says:

    Man thanks a lot for this, i will be calling on you more times

  122. builder smart Says:

    this was nice of you .the 1st method was very clear and understanding and thats the method i kno . thanks and God bless

  123. Engr Sunday Says:

    Well its was a nice job, but please try and make it more complicating xo dat dose of us who did as a professional course and are eating wit it wil not go hungry, dnt 4get dey are praising u but dey woud never open up derez 4 u to know, wisdom is required boss. wel done all d same, wit dis i rest my case..

  124. Friday ali Says:

    Man Thanks for this i has see a lot of a thing from this

  125. architect onyeka Says:

    lovely can u pls post about architects fee i want to know how to charge my clients

  126. Haroun Taiwo Says:

    Dear Engr,
    You are a blessing to your generations and God will reward you for this. Only few people like you can do this for free without charging money.I am saying this because so many people has been misled , ,swindled or duped by quack architect/builder just because you know nothing about building. Imagine someone giving me a bill of 3million to build 3bedroom flat just because i dont reside in the country? Anyway thaks to people like you. May God crown you handwork. this just gives me perfect idea on what to plan for. Thanks….

  127. Sweetest Omoh Says:

    May God continually bless d labour of ur hands.cos of u am well informed.

  128. omoyibo. solomon Says:

    U really done a gr8 job here but wat about d blocks 4 4 bedroom flaT

  129. Chukwu Lambert Says:

    You are really doing good job here, I just want to add little formula which will be easier. As we have know the total lenght to be 72.5 and the height of the building to be 4.2 from substructure and surface area of a block to be 0.10125, then building surface area can be 72.5*4.2=304.5.10125= 3007 then remove the surface area of the doors and windows which total 644 I.e 3007-644=2363.4blocks

  130. Chukwu Lambert Says:

    Total lenght multiply by height divided by block surface area,remove doors and windows surface area. I.e 72.5 * 4.2=304.5.10125=3007- 644 = 2363

  131. J. S. Sikabya Says:

    how about volume of cement for the plan above

  132. Ajayi Olatunji Says:

    Great job, you must be an architecture? keep the good work going, thumb up for u.

  133. .frank Says:

    good job man,but u 4got some details that 85% of block industry in the country uses 8′/420 as 9′/450,at the end of the day u en canter more numbers of block as result ur calculations.u also incure more cost of material,b’cos u use more mortar,cement 2 add strength 2 blocks.address the issue blocks then ur calculation perfect.well done.

  134. top it certifications salary Says:

    My spouse and I stumbled over here by a different website and thought I
    might check things out. I like what I see so now i’m
    following you. Look forward to checking out your web page

  135. Haske. N Says:

    I like this work

  136. Builder Chinedu Says:

    Thanks. Is nice

  137. aileru akeem Says:

    Need I say more? Will work to develop this in my own way.i thank you.

  138. omex omex Says:

    Gr8.keep it up.

  139. Anabah, A Says:

    I appreciate the job well done. God bless you real good for imparting knowledge on us. But pls how many blocks and cement will take us from DPC to roofing stage. Just want to work towards it before starting as not to get stucked. Please email me. So i can have your email and communicate very well. Thanks.

  140. Anabah, A Says:

    I appreciate the job well done. God bless you real good for imparting knowledge on us. But please how many blocks and cement will take us from DPC to roofing stage for 3 or 4 bedroom flat? Just want to work towards it before starting as not to get stucked. Please email me. So i can have your email and communicate very well. Thanks.

  141. Civil Eng Technician Njabulo Says:

    I learnt this in Tertiary bt it was just highlights and you’ve made it simple and clear…Well done. I’m bit confused with coaches but I understand quite well that each and every country has got its own technical words but meaning the same thing. Anyway thanks buddy

  142. Ayodele emmanuel Says:

    This is the ever keep it up i love you men.

  143. Micky Says:

    Hello sir,

    I am happy for this wonderful Job. God Bless you more.
    Please can let know how many blocks to build 4 Bed rooms as in the link http://www.legacyestatesib.com/inc/LegacyEstates_Home1a.pdf .


  144. How To Plan House Loan | House Plans Says:

    […] How to calculate numbers of blocks from a building plan. – 143 Responses to “How to calculate numbers of blocks from a building plan.” engr. aliu Says: October 24th, 2010 at 3:21 pm. man you a doing a wonderfull job but …… […]

  145. Q.s Adekiya Victor Says:

    Thanks a lot .Your calculations are steps towards a good quantification.However, to make it more technical, you need to work well on the concrete work;all the lintels must be deducted and 2/2of corners and all the recceses as well. In short, i love ur courage … But for those who posted here,asking for the numbers of blocks they would use for 2bdrms, 3bdrms and 4 bdrms,where are your building plans ? You should know that designs and sizes differ from eah other.You must also provide the topographical information of you site.THANK GREAT BUILDERS!

  146. emmanuel Says:

    You are great for posting this information

  147. Engr Emughedi Prince Young Says:

    You are trying, keep it up boy, I will really love to use you.

  148. abdalla said Says:

    need clarification regarding the total nos.of layers from the foundation to the roof.
    Earlier mentioned above 4 layers from base to dpc level.4 layers from dpc to base of window,5 layers from base of window to top of window and 3 layers from base of window to top.This will add up to 16 layers.
    but the calculation below mentioned only 4+5+3=12 layers why is this so bearing in mind later windows deducted.kindly clarify.

  149. abdalla said Says:

    what is the height of the building?as i can see mentioned as 4.2m can this concur withe number of layers mentioned?

  150. jasper Ijezie Says:

    I enjoyed this

  151. Nass Says:

    Thanks and God bless U sir.

  152. femi Says:

    Good work.

  153. nuga Says:

    guy, u try God bless u

  154. Odika prince Says:

    Thanks man. U have made my I.T great for this that i have learned.

  155. Kayode Says:

    Thanks a lot for this fabulous information. God will continuing to enlarge your coast. thanks again.

  156. Shittu Olawale Says:

    Thanks so much u really help me

  157. Oluwa Says:

    This looks great.. Please i need advice from everyone on 4 bedroom bungalow.. any positive advice is welcome.. from Blocks, Cements, Rods, etc..

  158. Luap Says:

    Great Job, its amazing how many mason/bricklayer or QS will fumble through wrong calculations and give an overly high estimates of blocks for a single flat and result into over quantity and wastage. Its hard to understand why they cant learn from past quantity quotes or just follow a simple calculations like yours. Its amazing also that you will find out 85% of those who checked or posted a comment here are individuals house owners or prospective ones and not bricklayers/ building contractors themselves because its either most of them are not digital-information literate or are not willing to improve on their mistakes.

    I will share my mobile app for calculating quantity of all kinds of bricks and iron rods or cement for building per space soon, am working on it. check back all.

  159. John Says:

    Nice one. God bless you sir

  160. John Says:

    Please sir, as an upcoming engineer, how can estimate the total cost of a building project to a potential client and prepare my bill of quantity.

    I will be ever grateful if you can help me to solve this quotation challenge. Thanks

  161. bishop Says:

    really gud

  162. Am Oluwaseyi Says:

    I don’t know I can find someone who can explain dis.thank dat u are not a fish seller man; dis great. thanks Prof.

  163. igwe jaycee Says:

    plz do u have a text book or any material on this for sale. plz I will like to have it. my contact No. 08139627398 or email: cwavetech111@gmail.com… thanks a bunch for this wonderful knowledge sheared

  164. Tee-tee Says:

    Well done emma,I need ur mail n ur digit. Send 2 owoeye_taiwo@yahoo.co.uk thks

  165. cyril Says:

    bros you are wonderful God bless you. pls can i call you on phone for private talk?

  166. Engineer chinonso. Says:

    Honestly you did a great and wonderful work unknown to professionals of different field,for all those requesting for analysis onbreakdownof number of blocks to be used in their respective buildings, let me make this known to all sundry, building price and estimating analysis isn’t based on just mere assumptions, you must provide a good and reputable plans, because not all structures are builderable,you must provide a good plan so as to give insight to the quantity surveyor to analyse it for you,let me use this medium to correlate my works to all,i design good structures, be it bungalows, duplex, residential or commercial buildings.you can reach me 08030497621.imo state. That’s where i based.builders build right.

  167. Arc kingsley Says:


  168. emma Says:

    yes . 08026228682

  169. emma Says:

    omionick@gmail.com 08026228682

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