by engineer somashekhar india. thanks 4 d explanation, pls others, dnt cricisiz. if not please help me state the minimum size. It also depends on your agreement, may be you are working on daily pay basis or contract basis. i can’t tell why you builders hate architects so passionately. I lives in Lagos so call me and we can schedule a meeting. So in a nutshell how many blocks do I need to complete such a project and where can I find a good architect to undertake this small contract. so, The cement value of concrete 1:2:4 is 7.84 multiply this by the volume of what you want to cast, you will get the number of bags needed. Secondly, before trying to be all technical when the writer is trying to explain for the layman, simply all cannot be self thought genius on these subjects. I appreciate all i have learnt from this page recently as a Civil Engineer. They are not usually covered with blocks thus the name. Chima. you have tried anyway but i want ogbonna to realise dat such mathematical approach should suggest he is a quantity surveyor, i want to make it clear dat the quantity surveyors approach to dat calculation wil giv d best result. Well, i do appreciate ur nice idea, pls keep it up. Keep it up and be blessed. Mr. Emma is really doing a good job trying to educate pple and kudos to him, however there is a little error in his calculations which i will like to correct for the benfit of every one. Choose your adviser wisely, gd day.i really appreciate ur advices on building construction. If we stick to exact quantum’s then even a spoonful can result in errors. THANK YOU ALL… LETS KEEP SHARING THE IDEA…. The cost of renting houses have increased greatly over the last decade. Thanks Bright, Divide the volume of concrete by 7 to get the volume of cement in concrete. You can use different types or grades of cement for different elements of a building. To calculate the volume of any constituent of concrete , you must take account of a value called dry co-efficient. Cheers all. Some one also asked about workmanship, though am not very sure what he means but i guess he wants to know the area that work men will plaster in a day. I think some of the critics are builders who think their secrets had been exposed. Pls Email at [email protected], through you guys,students can get where to start from since it’s a struggle for us.this is more practical than staying in class only reading for exams.great Work. Since the length of one block =450mm, we are going to divide the total Girth which is 82425mm by 450mm. From here I should offer tip about the most recent how many block can build 3 bedroom flat. Kudos to Mr Emma and Ifeoluwa. Residential Buildings on a Half Plot of Land (50ft x 50ft), (60ft x 60ft) or (30ft x 120ft) You can build a 2 bedroom flat on a half plot of land with parking space for 3 cars. we will first of all get the dimensions of all the vertical dimensions other than A - D. Now the vertical internal dimensions are: Now lets get the horizontal Dimensions as well and add up the totals, Therefore, the total Girth (External + Internal) = 42500 + 39925 = 82425mm or 82.42m, =================================================. We are going to neglect the lintel or concrete on top of the window, Having Known these points, lets now answer the question "How to Calculate the number of blocks needed for a 3 bedroom flat", Remember we are going to be using the 6 inches block or 150mm. Donât forget we are taking the volume of one bag of cement as 0.03. Owning a house is a great thing that can happen in an individualâs life. @Ifeoluwa,absolutely brilliant contributions.Undoubtedly,u shld b a colleague.kudos to mr Emma.Learning is a continous process.Even some of us wt appreciable experience in d built environment are still open to new ideas.Constructive critism shld b an integral package in our quest for advancement in knowledge. thanks. For me I love what you’re doing. Work men if not well supervised tend to waste materials during ranging and levelling of plaster. For example, let’s calculate the volme of cement, sand and gravel for 1 cubic meter of concrete mixed in 1:2:4 ratio. I really appreciate your explanation on “Cement and its Volumtion” May God empower you more knowledge. How Many Bag Of Cement Will Plaster 3bedroom Inside And Outside With Floor.. - Properties - Nairaland. Ogbonna & Etubi, would have made their observations clearly, not by discouraging Emma. The price is very OK. However from my little experience, somwhere between 300 to 500 should do; all things being equal. people should realise I am more like the troubleshooter and I don’t know all, that’s why I really appreciate your contribution. Kudos, what Mr Ogbonna has written is correct please do not miss lead the client and have qurral between engineer,client and contractor Know how many tons will be required to make your cement blocks. If only Etubi & Ogbona were 1/2 as decent as Ibrahim 2 hav jst made their point sensibly. How much sand and cement do I need to build a wall? 4 Bedroom Flat Bill Of Quantities (BOQ) â Save That Money !! Nosa. If not capable, then get out of the business and save collapses eh!. ‘cuz a good engineer or an experienced site worker should know dat 4 wateva values given by calculatns, a percentage z given 4 wastage. I salute the effort of the writer and esteemed readers. Regards. For the writter to answer that would be just plain silly on his part. of concrt 4.894 in ur caltn 4d mix ratio of 1:2:4 i beg enlighten me am frm ghana n want 2 learn more 4m u thax It will also help you to discover youself. Ogbonna nd ibrahim…u both lack the simplest understanding…mind u, he has calculated 4 volume nd not void…both of u should stop involving on what u dont knw. The crictics are allowed to air there views. That being said, the lesson is that Emma should humbly leave room for complimentary comments, not to be too authoritative, so as not to mislead. Your write ups have been extremely beneficial.I also thank the other contributors for adding value. Concerned professional, I totally agree : 2 achieve 1m3 of wet mix, add 50% of dry mix considering waste and consolidation. M stands for ‘mix’ and this alphabet usually changes from country to country in some country its called like C10 and number is compressive strength at the age of 28days curing period of curing temp 27c+/-2c 6" Sandcrete Solid Blocks or 150mm block, Of all these, 5" and 6" are the most common because they are usually cheap and commonly used for small projects, Also, from DPC to the base of the window, you're required to have 4 coaches, from the base of the wondow up to the top of the window, you have another 5 coaches. For any question, you can inbox me at [email protected], @Ifelola, I want to say yours must be one of the very best comments I have seen in this site. Now lets Subtract windows and doors, lines where burglary would be used instead of blocks from 2196 blocks, Now for every 1500mm window, we understand from experience that a total of 22 blocks would be needed to fill the space so we remove this 22 blocks for all 1500mm window, Counting, we have exactly 8 windows with the 1500mm dimension, so the number of blocks to be subtracted for windows = 8 x 22 = 176, The standard door for a bungalow is usually 900mm or 3 feet, You deduct a total of 18 blocks for every doo. As for Etubi you are 100% correct I am very! Dear learned n esteemed readers, pls do not be so quick to label mr. Ogbonna et al 4 pointing out dia observations n making reasonable criticism. i will be discussing on how to calculate the number of blocks required for your 3 bedroom flat. i dont want too big structure. Uncategorized. Honestly, you can build a 3 bedroom bungalow for as much as N50,000,000, or as low as N5,000,000. God bless the womb that bare thee. Keep at it. Well well people are just fighting to get attention ..The core issue is how to get approximate calculations. 1:2:4 means one portion of cement is mixed with an equivalent volume or ratio of two of same portion of volume of cement in sharpsand and four of same portion of volume of cement in granite. However we must also educate ourselves on the above topic. This is pure practical. how many blocks will build the following: 2 bed room flat 3 units of room & a parlor self contain. Subscribe to our newsletter to get the latest updates to your inbox. the likes of ogbonna would’ve charged for such an information. Pls can anyone tell me the disadvantages of not completing a decking in a day? In summary for estimating quantities I strongly believe quantity surveyors are better estimators. wth all due respect thts an under estimate. Wise people use a Quantity Surveyor for estimating and materials analysis in construction projects. Emma, good job! Good work emma….not everyone is a scientist and a little help goes a long way for some and am sure most appreciate it. Before I provide an estimate, Iâd love you to understand the type of building Iâm talking about here. putting into consideration that the area is a slump. Pls don’t mind Ogbonna and Etubi, your point was well made and also covers the issues they raised. Truth is, there are standards, n they must be followed #talking lives n properties here – u don’t just dream them up. But it is advised to add +15% to carter for such wastage’s & improper batching…. Thank you for helping a novice like me. very! cuz we need to get the dry volume. To calculate in bags By substituting the volume of that concrete into this formular you get 32 number of bags of cement as against 23bags of cement. According to the Category Manager of CPL Groups, Mr. Israel Nornyibey, the cost of putting up a property vary from one location to the other: âIn my estimation, I think you will need about GHS 150,000 to build a decent three-bedroom house without any storey and this basically depends on where you want the property to be or the cost of the land in that neighbourhood,â says Nornyibey Thnk. The abundance of designs means that a rough estimate could be too small or too large to cover the entire cost of constructing the building. thanks (though experience has shown that materials properties varies, hence there is always little variations in quantities used on site.) Its value is 1.52. The response of your readers should be taken into consideration. You also need to determine your cement sand mix ratio. Sorry the calculation is wrong. Please of you can explain me like how many lorries of stone cement sand ballast all together with fundi How much can I spend. Mr Emma continue to update us. All the same well done is not easy. For our calculation let’s assume we need to plaster an area 20m2 at a thickness of 12.5mm D truth is dat u cnt satisfy every body. Emma is an architect n nt either a QS or Structural/ Civil Engr. Now i hope i have been able to answer the question "How to calculate the number of blocks required to build a 2 Bedroom flat" and i hope you will found this useful. I.e. I hav learn alot 4rm ur site then i will said thank u. Ifelola u are quite sound and well read…thumbs up to u for the explicitness in ur approac. The crictics are allowed to air there views. If you have more than that in loss and void, i assume you wont be working as you have one of two problems. Thanks emma. pls teach me more. Vol of sand = 6/(1+6) * 1.52 * 0.25 = 0.326m3 Emma..u really did a good work….thumbs up. keep it up, we appreciate you. we (arcs & bldrs) are brothers in the construction industry. 1 bag =50kg there fore we have 312.48/50=6.24 bags. There is a profession certified under the law of this land experienced and skilled in estimating bags of cement, blocks, dream home, structures of any kind. Of blocks for a 3 bedroom flat many blocks can build how to calculate number of blocks for how to calculate number of blocks for. pls, how many blocks will be needed to fence a plot of land 50sq ft by 100sq ft and to also build a twin 3 bedroom flat of 2toilets and bath from the foundation. thanks. Including f&f. The Criteria of voids was not raised as it is in fact an unknown quantity. How Many Blocks Will Build 2 Bedroom Flat. Emma..u really did a good work….thumbs up. Thanks. and is it ok if i make the floor thickness of 6 inches? At least with dis i can build a house of my own.thanks. I think any clever person should be able to use your guide wisely. Tanx very much I really gain something on how to calculate the number of bag of cements to use. their background suggest more of a detailed calc. Remember we are dealing with volume and strength when it comes concrete and not mathematical ratios. If you are an Architect I will advise you concentrate on building plans which is your core competence. 3. Tanx, I am about to start a small project in Nigeria- a four flat (with three bedrooms each) 21/2 bathrooms ; each master bedrooms are to have their own baths – replica of houses here in Dallas or Florida. Your mathematical approach suggests you are either an Architect or a Mathematician. Thanks so much for your write ups, they have been so helpful. hope 947sq ft ie 88sq meter is ok for a moderate 3 bedroom flat with a masterbedroom. Fine n coarse agg. & also d number of trips of sand 2 b used& also 3/4’granite. As he has rightly said there are different mixes of concrete giving different strenghts and for use in different capacities. Aluminium roffing i mean. Searching for hiding knowledge is kandle of your life. If youâre tired of property developers and contractors charging you thousands, Overpricing every piece of equipment in your new home, then itâs time to consider getting a proper Bill of Quantities. = 0.0543 * 1440 = 78.192 kg 4-bedroom bungalow houses have become the most popular lately, and it is not a surprising thing. You are helping no one. When to use Iron rods in the oversite/german floor concrete of a bungallow. It accounts for change in volume when water is added to constituents. dere4 u dnt expect him to go into details strt/civ tins, most of d article here is frm his field exprience, and it works. You wish you knew what emma has told you. Cement = 1/7*1.52*1440/50 (i.e 6.25 bags per m3 of concrete) How to calculate numbers of blocks from a building plan. Firstly, I would like to say to all the critiques. A prospective client first question is an estimate to know the numbers of blocks and number of bags of cement required  to complete his building project. 2. Vol of cement = 1/(1+2+4)*1.52=0.217 m3. Averagely one gang (1 mason / labourer ) should plaster an area of about 22.5 m2 in good quality work in one day if he’s an experienced mason. masuzi 3 years ago No Comments. Workmen tend to be slower when working on daily pay basis than when working on contract basis. In order to answer this question, i am going to upload a plan since i'll be estimating based on the dimensions found on the building Plan. Either way, I dont think your as smart as you tried to make out. For example the first person who started the criticism is an igbo man and you can imagine what the guy will when you are selling is trade secret, trust igbo man in business. Those contributions will go a long way to help the skilled and unskilled. Cheers. Most of you are not builders, engineers or even architects nor quantity surveyors. Had you any brains at all, you would just do what every job around the world does. So in a nutshell how many blocks do I need to complete such a project and where can I find a good architect to undertake this small contract. 4. What is the Difference Between RC and RB Slabs? from my own calculation for cement is 28.77 approximately 29bags having allow for shrinkage and waste. There are two major mixture ratio for concrete 1:2:4 or 1:3:6, there are others, but we are going to base our calculations on these two. divide this by 225 (2100/225 = 9) + width of the door divided by 450 (900/450 = 2) now 9 x 2 = 18 blocks for every 900mm door... Now For a 1200mm door, lets see how to work out the number of blocks for a 1200mm door. with dis plan how many cement can someone use to complete this project Re: How Much Will It Cost To Build A 3 Bedroom Flat. D most interested part is that it is frm coming a Nigerian on a zero naira, i mean u try! To calculate volume you must first know the area you want to plaster and the thickness. i also lov d way u handle critisms. and allow another 28sq.mts for circulation, restaurant, bar back of house etc., therefore approximately 6000sq.mts building. Pls estimate how much bags of cement & trucks of sand I would need for a german floor for a bungalow of dimension: 16.2 sq meter by 14.5 sq meter. It depends on the type of foundation which in turn depends ⦠Vol of cement will be 4.894*6.24=30.54 bags. This is because there are several factors that affect the estimated amount the whole process will go for. hw to calculat d sharpsand,granite,and d cement in concrete work also plastering work ? Just as it was stated above, a simple 4-bedroom flat will require a lesser amount of block, while a complex one will require more blocks, depending on its level of complexity. Now the first thing to do is to add up all the external and internal dimensions from the architectural plan above. Also what are the items I would need for a solid foundation in olokonla area of ogombo. Besides d calc by Emma waz by volume and voids r nt considered. An averege 2 bedroom house will use 25 tons of quarry dust or sand and an average 3 bedroom house will use 50 tons. Sand = 2/7*1.52 (i.e 0.43 m3 per m3 of concrete) 15N/ sq.mm … I can give mix designs for interest ppl on the submission of test certificate of raw materials used. The proposed project is in Benin city, I am about to start a small project in Nigeria- a four flat (with three bedrooms each) 21/2 bathrooms ; each master bedrooms are to have their own baths – replica of houses here in Dallas or Florida. (Luke 14:28) Biblical advice. Your broke for being overcompensative in loss, or, your broke because you cant find work for being either underqualified or doing slap happy work that does collapse. Letâs know their reasons in detail and get preventive measures. which ever methods u applied in achieving a result if d tolerence factor or level is nt compromised or exceeded it is ok. plz help me some one if lintel size 130’L x70’W x 5″T how much i need martial qty of cement, sand, gravel (Bajri) and steel, please , how are we going to calculate for the reinforcement that already inside concrete done on site, and could you please tell me the formula/unit we are going to use and how do we arrived to that formula. Expectedly, we should add constructively to what he has done. if not please help me state the minimum size. Foundation footing, mortar, dpc cast, Iintel, arch etc. of concrt 4.894 in ur caltn 4d mix ratio of 1:2:4 i beg enlighten me am frm ghana n want 2 learn more 4m u thax, my name s mazzidu, bros am confuse hw did u manage 2 get d vol. Good engineers crave for mor knowledge and finds diff ways to achieve one task. Each profession as its own core. I am sure the critcs in this forum without a superior opinion got their thumbs burnt. Don't worry, we've got it covered! i agree with my critic friends. Well done emma,don’t listen to critics u are on the right track,fire down.most builders waste materials out of ignorance,or rather lack of accurate calculation,thanks bro. But are we ready to give freely as he did? Residential Buildings on a Half Plot of Land (50ft x 50ft), (60ft x 60ft) or (30ft x 120ft) You can build a 2 bedroom flat on a half plot of land with parking space for 3 cars. Concrete Building Blocks. Nairaland Forum / Nairaland / General / Properties / How Many Bag Of Cement Will Plaster 3bedroom Inside And Outside With Floor.. (14549 Views) How Many Rods And Bags Of Cement Will it Cost To Deck This Duplex / How Much To Plaster This Bungalow / Can Anyone Help ⦠Emma has done a good job that some of us would have had to pay for to get the knowledge, Ife did well in explaining it further. This estimate would be based on the fact that a lot of my readers have been asking questions on how they can calculate the number of blocks required to build a 3 bedroom flat. Thank u. I am a mechanical engineer and I intend to invest in building a 2 bedroom bungalow (2 units) in abuja, I hv my plan drawn out but want a total estimate on blocks,cement, reinforcements and roofing. For instance, you wouldnât expect to spend the same amount to build a 4-bedroom in places like Lagos and some other less-expensive places like Ondo State or Northern Nigeria. did you allow for shrinkage and waste at all? i.e. Upgrade your apartment with these easy DIY ideasDoes your room seems boring to you? the mix proportioning is based on the properties of material based on its specific gravity , gradations etc however the proportioning of nonstructual concrete can be done by nominal methods like 1:3:6 as M10 and 1:2:4 as M15 i.e.
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