# Welcome, Guest: Join Nairaland / LOGIN! / Trending / Recent / New
Stats: 2,595,383 members, 6,020,924 topics. Date: Saturday, 28 November 2020 at 02:42 PM

## How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. - Properties (4) - Nairaland

(1) (2) (3) (4) (Reply) (Go Down)

 Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by mygeeZ(m): 6:54pm On Sep 17, 2019 Which ever way you decide to buy tiles, if you meet a honest seller you still pay same amount. You need to understand per square metre, per piece, carton etc. A square metre is 100cm*100cm(1.00*1.00).. So if I sale 400mm*400mm size of tiles for N1200 per square metre. One piece will be 0.400*0.400 *1200 which is 0.16*1200 is N192.. One carton of it contains 12pcs which means carton price will be N192*12 is N2304. That's for a layman... Me that sales tiles already know that one carton of 400mm*400mm is 1.92sqm.. All I will do since I already told you price per square metre is 1200 is to multiply 1.92sqm*1200 which is N2304.. So if your buying in carton or in square metre, your paying the same amount. joycluv: Plz what is the rationale behind selling tiles per square meter instead of per piece? Again, how do you measure and then cut out one square meter of tile? 1 Like 1 Share Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by mygeeZ(m): 6:57pm On Sep 17, 2019 Moving to permanent site.. Integrity and Honesty is the keysaydfact:Thanks for your help, well appreciated - hope market dey move.. 1 Like Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by thedio(m): 12:41pm On Sep 18, 2019 saydfact:Amen, if you have difficulties, u can always DM mealright Thanx 1 Like Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by agentakins: 8:47pm On Sep 20, 2019 Good job Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by Tammynator(m): 11:06pm On Sep 20, 2019 God bless you for educating us on a steady. Lovely piece. Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 11:23am On Sep 23, 2019 Tammynator:God bless you for educating us on a steady. Lovely piece.Thanks Sir, working on another already,,,watch out... Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by Hamthablow(m): 6:07pm On Sep 23, 2019 [quote author=Sammy011 post=82288886][/quote]I so much love this write up. Thumbs up bro, more grease to your elbow � Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by Hamthablow(m): 6:09pm On Sep 23, 2019 saydfact:GoodDay and its good to be back.Let's go practical (as we always do) - calculating the number of tiles needed to tile various spaces within the building (floor and wall tiling).We would make reference to our 3 bedroom plan, designed specifically for Nairaland lectures and calculate the tiles needed in the living room, one of the bedrooms and the master's toilet's floor and wall tiles. SELECTING TILES1. Tiles come in various sizes, the common ones being 150x150, 200x200, 300x300, 150x300, 200x400, 300x600, 400x400 and 600x600; the first thing to do is pick a tile (based on clients choice or use) for each floor and wall. There is no rule stopping you from using any particular tile size for floor or wall, as long as it has the perfect surface finish for that use.e.g, a glazed (slippery) tile is not appropriate in the bathroom, so if I find any non-slippery tile, irrespective of the size, I can use it for my wet floors. Wet floors include Bathroom, Swimming pool, Laundry, etc. (We've had buildings where 600x600 tiles were used on the wall and 150x150 tiles used on the floor) - in summary, the tile finish NOT the tile size determines where it is used.2. Select tiles for each space. (Let's select ours too).I'll go with the popular opinion; Living Room (600x600), Bedroom (400x400), Bathroom Floor (300x300) and Bathroom Wall (200x400).Note:* Glazed tiles cannot be used on wet floors - it's very slippery if the floor is wet and dangerous* Un-Glazed, Matte, Rough tiles can be used on any surface (wet or dry)3. Calculate the area of the spaces (floor and wall) separately - This uses the simple LxB (area of a rectangle principle) - and write it out.Note:* Remember to deduct door and window openings where applicable (e.g Area of wall = 10m2; area of window = 0.5m2 therefore area to be tiled = 10m2 - 0.5m2 = 9.5m2)* After getting your area to be tiled, ADD 10% of quantity for waste & broken tiles. (e.g 9.5m2 + 10% of 9.5m2 >> 9.5 + 0.95 >> 10.45m2)4. Calculate the Total area of Tiles you're picking; this varies from one manufacturer to the other and from one product size to the other. >> this means that while 400x400 tiles from SaydFact Ceramics contain 11 pcs, those of Teewhy2 Tiles Ltd might contain 13 pcs - It is, therefore, important to know how much pieces each pack of tiles you're buying contain.5. Ascertain the total area of one pack of tiles (either by calculating or checking on the pack), use this figure to divide the total square area of the room to be tiled and the result gives you quantities needed - in simple terms >> (AREA OF LIVING ROOM / area of 1 pack of tiles) = Quantity of Tiles needed (remember to add 10% for waste).LETS NOW GO PRACTICAL BY CALCULATING USING THE ATTACHED DRAWING (see pics below) and information in No2 above.A. Master's Bedroom:* From the diamond below; total floor area of Master's Rm is 13.20m2* Lets agree that our 400x400 tiles contain 11 pieces; hence area of 1 pack in meters >> 0.4m x 0.4m x 11 pcs (400mm is same as 0.4m and area of 1 tile is 0.4 x 0.4, while the area of 1 pack is (Area of 1 tile x number of tiles in 1 pack)1 PACK = 0.4 x 0.4 x 11 = 1.76m2Number of tiles needed to complete Master's Rm floor = 13.20 (divided by) 1.76m2 = 13.20 / 1.76 = 7.5 packsbefore we add for waste; let's calculate skirting for the Bedroom using 120mm as skirting height.* The 1st question is how many skirting can we get from 1 tile? Ans: Lenght of tiles / Height of skirting = 400 / 120 = 3 skirting from 1 tiles.* What is the perimeter of the space needing skirting?Ans: From the diagram, bedroom is 4150 by 3150 hence perimeter of room = 4150 + 4150 + 3150 + 3150 = 14600mm * Deduct openings from the perimeter ie 2 doors (toilet and bedroom doors) where there won't be need for skirting >> 750+900 = 1650mm* Length requiring skirting = 14600mm - 1650mm = 12950mm* Numbers of Skirting needed = 12950 / 400 (lenght of 1 tile) = 33 pcs (approximate to the next whole nos)* Number of Tiles needed to make requirement = 33 pcs / 3 (number of skirting gotten from 1 tile) = 11 pcs (11 tiles are needed for skirting)* Number of packs needed for skirting = 11 pcs / 11 pcs (number in 1 pack) = 1 pack is needed.TOTAL TILES NEEDED FOR MASTER'S BEDROOM:7.5 PACKS (FLOOR) + 1 PACK (SKIRTING) = 8.5 PACKS.ADD 10% FOR WASTE >> 8.5 Packs + 10% of 8.5 = 8.5+ 0.85 = 9.35 packs neededHENCE BUY 10 PACKS (approximated to the next whole number because you can't buy half tiles)B. Living Room: (Straight to Biz)   We're using 600x600 tiles and each pack contains 4 pcs; hence Area of 1 pack = 0.6x0.6x4 = 1.44m2Area of Living Room (see diagram) = 22.02m2* Number of Packs needed for Floor >> 22.02 / 1.44 = 15.2 packsSkirting >> Perimeter of Living Room - (All Openings) = 12.2m or 12200mm* Number of Skirting in 1 tiles >> 600 / 120 = 5 pcs (from 1 tiles)* Number of skirting needed for Living Room = 12200 / 600 = 21 pcs* Number of Tiles needed to meet requirements = 21 / 5 = 5 tiles* Number of packs needed for skirting = 5 tiles / 4 pcs (number in 1 pack) = 1.25 pack is needed.TOTAL TILES NEEDED FOR LIVING ROOM:15.2 PACKS (FLOOR) + 1.25 PACK (SKIRTING) = 17 PACKS.ADD 10% FOR WASTE >> 17 Packs + 10% of 17 = 17+ 1.7 = 18.7 packs neededHENCE BUY 19 PACKS (approximated to the next whole number because you can't buy half tiles)C. Bathroom Floor: (using 300mm by 300mm Tiles)Area of Floor / Area of 1 pack of Tiles >> 3.26 / 1.35 (assuming nos in 1 pack = 15nos) = 2.4 packsThere's no skirting in Bathroom because we have wall tiles.TOTAL TILES NEEDED FOR BATHROOM FLOOR = 2.4 + 10% of 2.4 = 3 PACKS D. Bathroom Wall:We're using 200x400 tiles and each pack contains 17 pcs; hence Area of 1 pack = 0.2x0.4x17 = 1.36m2Let's also assume that we're tiling up-to 2.1m only i.e Window level (the alternative is to tile up-to 3m; i.e ceiling level)* What is the perimeter of the space needing wall tiles?Ans: From the diagram, bathroom is 2100 by 1500 hence perimeter of room = 2100 + 2100 + 1500 + 1500 = 7200mm = 7.2m* Find total area to be tiled >> Perimeter x Height used >> 7.2m x 2.1m = 15.12m2* Deduct Area of openings from the Area above i.e 1 door (2.1m x 0.75m) and 1 window (0.6m x 0.6m) >> (1.6m2 + 0.36m2) = 1.96m2* Hence; Area to be tiled = 15.12m2 - 1.96m2 = 13.16m2Now we revert to our earlier formulas i.e AREAS TO BE TILED / AREA OF 1 PACK = NUMBERS OF PACKS NEEDED* 13.16m2 / 1.36m2 (area of 1 pack) = 9.7 packs = 10 packs (approximate to next whole number)TOTAL TILES NEEDED FOR TOILET WALL: 10 PACKSADD 10% FOR WASTE >> 10 Packs + 10% of 10 = 10 + 1 = 11 packs neededHENCE BUY 11 PACKS Do the above for all space in the building; You can even prepare an excel file with the formulas so you won't need calculations each time; just input the area of floor and area of tiles and bingo.Thanks for Following... I so much love this. More grease to your elbow � Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 8:37am On Sep 24, 2019 Hamthablow:I so much love this. More grease to your elbow �Thanks, sir.... more coming Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by Halcot74: 10:00am On Oct 29, 2019 [quote author=Mcsammy4u post=82288589]Very informativeHello, you did not include kitchen, the second and third room, the whole area of the house.thanks Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 12:45pm On Oct 29, 2019 [quote author=Halcot74 post=83556419][/quote]what i did was to use key areas that represent all spaces eg.. the calculation for kitchen and toilet is same principle (so i u used toilet to explain both)Thanks for following too.... Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by bestmutiu2019(m): 3:32pm On Nov 10, 2019 [quote author=saydfact post=82283729]GoodDay and its good to be back.Let's go practical (as we always do) - calculating the number of tiles needed to tile various spaces within the building (floor and wall tiling).We would make reference to our 3 bedroom plan, designed specifically for Nairaland lectures and calculate the tiles needed in the living room, one of the bedrooms and the master's toilet's floor and wall tiles. SELECTING TILES1. Tiles come in various sizes, the common ones being 150x150, 200x200, 300x300, 150x300, 200x400, 300x600, 400x400 and 600x600; the first thing to do is pick a tile (based on clients choice or use) for each floor and wall. There is no rule stopping you from using any particular tile size for floor or wall, as long as it has the perfect surface finish for that use.e.g, a glazed (slippery) tile is not appropriate in the bathroom, so if I find any non-slippery tile, irrespective of the size, I can use it for my wet floors. Wet floors include Bathroom, Swimming pool, Laundry, etc. (We've had buildings where 600x600 tiles were used on the wall and 150x150 tiles used on the floor) - in summary, the tile finish NOT the tile size determines where it is used.2. Select tiles for each space. (Let's select ours too).I'll go with the popular opinion; Living Room (600x600), Bedroom (400x400), Bathroom Floor (300x300) and Bathroom Wall (200x400).Note:* Glazed tiles cannot be used on wet floors - it's very slippery if the floor is wet and dangerous* Un-Glazed, Matte, Rough tiles can be used on any surface (wet or dry)3. Calculate the area of the spaces (floor and wall) separately - This uses the simple LxB (area of a rectangle principle) - and write it out.Note:* Remember to deduct door and window openings where applicable (e.g Area of wall = 10m2; area of window = 0.5m2 therefore area to be tiled = 10m2 - 0.5m2 = 9.5m2)* After getting your area to be tiled, ADD 10% of quantity for waste & broken tiles. (e.g 9.5m2 + 10% of 9.5m2 >> 9.5 + 0.95 >> 10.45m2)4. Calculate the Total area of Tiles you're picking; this varies from one manufacturer to the other and from one product size to the other. >> this means that while 400x400 tiles from SaydFact Ceramics contain 11 pcs, those of Teewhy2 Tiles Ltd might contain 13 pcs - It is, therefore, important to know how much pieces each pack of tiles you're buying contain.5. Ascertain the total area of one pack of tiles (either by calculating or checking on the pack), use this figure to divide the total square area of the room to be tiled and the result gives you quantities needed - in simple terms >> (AREA OF LIVING ROOM / area of 1 pack of tiles) = Quantity of Tiles needed (remember to add 10% for waste).LETS NOW GO PRACTICAL BY CALCULATING USING THE ATTACHED DRAWING (see pics below) and information in No2 above.A. Master's Bedroom:* From the diamond below; total floor area of Master's Rm is 13.20m2* Lets agree that our 400x400 tiles contain 11 pieces; hence area of 1 pack in meters >> 0.4m x 0.4m x 11 pcs (400mm is same as 0.4m and area of 1 tile is 0.4 x 0.4, while the area of 1 pack is (Area of 1 tile x number of tiles in 1 pack)1 PACK = 0.4 x 0.4 x 11 = 1.76m2Number of tiles needed to complete Master's Rm floor = 13.20 (divided by) 1.76m2 = 13.20 / 1.76 = 7.5 packsbefore we add for waste; let's calculate skirting for the Bedroom using 120mm as skirting height.* The 1st question is how many skirting can we get from 1 tile? Ans: Lenght of tiles / Height of skirting = 400 / 120 = 3 skirting from 1 tiles.* What is the perimeter of the space needing skirting?Ans: From the diagram, bedroom is 4150 by 3150 hence perimeter of room = 4150 + 4150 + 3150 + 3150 = 14600mm * Deduct openings from the perimeter ie 2 doors (toilet and bedroom doors) where there won't be need for skirting >> 750+900 = 1650mm* Length requiring skirting = 14600mm - 1650mm = 12950mm* Numbers of Skirting needed = 12950 / 400 (lenght of 1 tile) = 33 pcs (approximate to the next whole nos)* Number of Tiles needed to make requirement = 33 pcs / 3 (number of skirting gotten from 1 tile) = 11 pcs (11 tiles are needed for skirting)* Number of packs needed for skirting = 11 pcs / 11 pcs (number in 1 pack) = 1 pack is needed.TOTAL TILES NEEDED FOR MASTER'S BEDROOM:7.5 PACKS (FLOOR) + 1 PACK (SKIRTING) = 8.5 PACKS.ADD 10% FOR WASTE >> 8.5 Packs + 10% of 8.5 = 8.5+ 0.85 = 9.35 packs neededHENCE BUY 10 PACKS (approximated to the next whole number because you can't buy half tiles)B. Living Room: (Straight to Biz)   We're using 600x600 tiles and each pack contains 4 pcs; hence Area of 1 pack = 0.6x0.6x4 = 1.44m2Area of Living Room (see diagram) = 22.02m2* Number of Packs needed for Floor >> 22.02 / 1.44 = 15.2 packsSkirting >> Perimeter of Living Room - (All Openings) = 12.2m or 12200mm* Number of Skirting in 1 tiles >> 600 / 120 = 5 pcs (from 1 tiles)* Number of skirting needed for Living Room = 12200 / 600 = 21 pcs* Number of Tiles needed to meet requirements = 21 / 5 = 5 tiles* Number of packs needed for skirting = 5 tiles / 4 pcs (number in 1 pack) = 1.25 pack is needed.TOTAL TILES NEEDED FOR LIVING ROOM:15.2 PACKS (FLOOR) + 1.25 PACK (SKIRTING) = 17 PACKS.ADD 10% FOR WASTE >> 17 Packs + 10% of 17 = 17+ 1.7 = 18.7 packs neededHENCE BUY 19 PACKS (approximated to the next whole number because you can't buy half tiles)C. Bathroom Floor: (using 300mm by 300mm Tiles)Area of Floor / Area of 1 pack of Tiles >> 3.26 / 1.35 (assuming nos in 1 pack = 15nos) = 2.4 packsThere's no skirting in Bathroom because we have wall tiles.TOTAL TILES NEEDED FOR BATHROOM FLOOR = 2.4 + 10% of 2.4 = 3 PACKS D. Bathroom Wall:We're using 200x400 tiles and each pack contains 17 pcs; hence Area of 1 pack = 0.2x0.4x17 = 1.36m2Let's also assume that we're tiling up-to 2.1m only i.e Window level (the alternative is to tile up-to 3m; i.e ceiling level)* What is the perimeter of the space needing wall tiles?Ans: From the diagram, bathroom is 2100 by 1500 hence perimeter of room = 2100 + 2100 + 1500 + 1500 = 7200mm = 7.2m* Find total area to be tiled >> Perimeter x Height used >> 7.2m x 2.1m = 15.12m2* Deduct Area of openings from the Area above i.e 1 door (2.1m x 0.75m) and 1 window (0.6m x 0.6m) >> (1.6m2 + 0.36m2) = 1.96m2* Hence; Area to be tiled = 15.12m2 - 1.96m2 = 13.16m2Now we revert to our earlier formulas i.e AREAS TO BE TILED / AREA OF 1 PACK = NUMBERS OF PACKS NEEDED* 13.16m2 / 1.36m2 (area of 1 pack) = 9.7 packs = 10 packs (approximate to next whole number)TOTAL TILES NEEDED FOR TOILET WALL: 10 PACKSADD 10% FOR WASTE >> 10 Packs + 10% of 10 = 10 + 1 = 11 packs neededHENCE BUY 11 PACKS Do the above for all space in the building; You can even prepare an excel file with the formulas so you won't need calculations how can I contact you Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 3:48pm On Nov 10, 2019 [quote author=bestmutiu2019 post=83904139][/quote]Cadsolutions2009@gmail.com or see signature for WhatsApp. Thanks Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by megautche: 4:03pm On Mar 18 Pls how can I calculate the length of the external walls, I want to tile the external walls and what height to I measure from the ground , do I terminate at the window sill level. Thank you Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 9:37am On Mar 29 megautche:Pls how can I calculate the length of the external walls, I want to tile the external walls and what height to I measure from the ground , do I terminate at the window sill level. Thank youHi.. You didn't get back with the information required..As built dimensions...Goodluck Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by brighttech95(m): 11:32am On Apr 01 Anyone with current market price of tiles? Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by saydfact(m): 1:43pm On Apr 02 brighttech95:Anyone with current market price of tiles?Tiles are like cement.. Just walk into the market and inquire... Prices depends on quality, manufacturers and source (local or imported) also design.Goodluck 1 Like Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by Badgers14: 11:18am On Aug 19 saydfact:GoodDay and its good to be back.Let's go practical (as we always do) - calculating the number of tiles needed to tile various spaces within the building (floor and wall tiling).We would make reference to our 3 bedroom plan, designed specifically for Nairaland lectures and calculate the tiles needed in the living room, one of the bedrooms and the master's toilet's floor and wall tiles. SELECTING TILES1. Tiles come in various sizes, the common ones being 150x150, 200x200, 300x300, 150x300, 200x400, 300x600, 400x400 and 600x600; the first thing to do is pick a tile (based on clients choice or use) for each floor and wall. There is no rule stopping you from using any particular tile size for floor or wall, as long as it has the perfect surface finish for that use.e.g, a glazed (slippery) tile is not appropriate in the bathroom, so if I find any non-slippery tile, irrespective of the size, I can use it for my wet floors. Wet floors include Bathroom, Swimming pool, Laundry, etc. (We've had buildings where 600x600 tiles were used on the wall and 150x150 tiles used on the floor) - in summary, the tile finish NOT the tile size determines where it is used.2. Select tiles for each space. (Let's select ours too).I'll go with the popular opinion; Living Room (600x600), Bedroom (400x400), Bathroom Floor (300x300) and Bathroom Wall (200x400).Note:* Glazed tiles cannot be used on wet floors - it's very slippery if the floor is wet and dangerous* Un-Glazed, Matte, Rough tiles can be used on any surface (wet or dry)3. Calculate the area of the spaces (floor and wall) separately - This uses the simple LxB (area of a rectangle principle) - and write it out.Note:* Remember to deduct door and window openings where applicable (e.g Area of wall = 10m2; area of window = 0.5m2 therefore area to be tiled = 10m2 - 0.5m2 = 9.5m2)* After getting your area to be tiled, ADD 10% of quantity for waste & broken tiles. (e.g 9.5m2 + 10% of 9.5m2 >> 9.5 + 0.95 >> 10.45m2)4. Calculate the Total area of Tiles you're picking; this varies from one manufacturer to the other and from one product size to the other. >> this means that while 400x400 tiles from SaydFact Ceramics contain 11 pcs, those of Teewhy2 Tiles Ltd might contain 13 pcs - It is, therefore, important to know how much pieces each pack of tiles you're buying contain.5. Ascertain the total area of one pack of tiles (either by calculating or checking on the pack), use this figure to divide the total square area of the room to be tiled and the result gives you quantities needed - in simple terms >> (AREA OF LIVING ROOM / area of 1 pack of tiles) = Quantity of Tiles needed (remember to add 10% for waste).LETS NOW GO PRACTICAL BY CALCULATING USING THE ATTACHED DRAWING (see pics below) and information in No2 above.A. Master's Bedroom:* From the diamond below; total floor area of Master's Rm is 13.20m2* Lets agree that our 400x400 tiles contain 11 pieces; hence area of 1 pack in meters >> 0.4m x 0.4m x 11 pcs (400mm is same as 0.4m and area of 1 tile is 0.4 x 0.4, while the area of 1 pack is (Area of 1 tile x number of tiles in 1 pack)1 PACK = 0.4 x 0.4 x 11 = 1.76m2Number of tiles needed to complete Master's Rm floor = 13.20 (divided by) 1.76m2 = 13.20 / 1.76 = 7.5 packsbefore we add for waste; let's calculate skirting for the Bedroom using 120mm as skirting height.* The 1st question is how many skirting can we get from 1 tile? Ans: Lenght of tiles / Height of skirting = 400 / 120 = 3 skirting from 1 tiles.* What is the perimeter of the space needing skirting?Ans: From the diagram, bedroom is 4150 by 3150 hence perimeter of room = 4150 + 4150 + 3150 + 3150 = 14600mm * Deduct openings from the perimeter ie 2 doors (toilet and bedroom doors) where there won't be need for skirting >> 750+900 = 1650mm* Length requiring skirting = 14600mm - 1650mm = 12950mm* Numbers of Skirting needed = 12950 / 400 (lenght of 1 tile) = 33 pcs (approximate to the next whole nos)* Number of Tiles needed to make requirement = 33 pcs / 3 (number of skirting gotten from 1 tile) = 11 pcs (11 tiles are needed for skirting)* Number of packs needed for skirting = 11 pcs / 11 pcs (number in 1 pack) = 1 pack is needed.TOTAL TILES NEEDED FOR MASTER'S BEDROOM:7.5 PACKS (FLOOR) + 1 PACK (SKIRTING) = 8.5 PACKS.ADD 10% FOR WASTE >> 8.5 Packs + 10% of 8.5 = 8.5+ 0.85 = 9.35 packs neededHENCE BUY 10 PACKS (approximated to the next whole number because you can't buy half tiles)B. Living Room: (Straight to Biz)   We're using 600x600 tiles and each pack contains 4 pcs; hence Area of 1 pack = 0.6x0.6x4 = 1.44m2Area of Living Room (see diagram) = 22.02m2* Number of Packs needed for Floor >> 22.02 / 1.44 = 15.2 packsSkirting >> Perimeter of Living Room - (All Openings) = 12.2m or 12200mm* Number of Skirting in 1 tiles >> 600 / 120 = 5 pcs (from 1 tiles)* Number of skirting needed for Living Room = 12200 / 600 = 21 pcs* Number of Tiles needed to meet requirements = 21 / 5 = 5 tiles* Number of packs needed for skirting = 5 tiles / 4 pcs (number in 1 pack) = 1.25 pack is needed.TOTAL TILES NEEDED FOR LIVING ROOM:15.2 PACKS (FLOOR) + 1.25 PACK (SKIRTING) = 17 PACKS.ADD 10% FOR WASTE >> 17 Packs + 10% of 17 = 17+ 1.7 = 18.7 packs neededHENCE BUY 19 PACKS (approximated to the next whole number because you can't buy half tiles)C. Bathroom Floor: (using 300mm by 300mm Tiles)Area of Floor / Area of 1 pack of Tiles >> 3.26 / 1.35 (assuming nos in 1 pack = 15nos) = 2.4 packsThere's no skirting in Bathroom because we have wall tiles.TOTAL TILES NEEDED FOR BATHROOM FLOOR = 2.4 + 10% of 2.4 = 3 PACKS D. Bathroom Wall:We're using 200x400 tiles and each pack contains 17 pcs; hence Area of 1 pack = 0.2x0.4x17 = 1.36m2Let's also assume that we're tiling up-to 2.1m only i.e Window level (the alternative is to tile up-to 3m; i.e ceiling level)* What is the perimeter of the space needing wall tiles?Ans: From the diagram, bathroom is 2100 by 1500 hence perimeter of room = 2100 + 2100 + 1500 + 1500 = 7200mm = 7.2m* Find total area to be tiled >> Perimeter x Height used >> 7.2m x 2.1m = 15.12m2* Deduct Area of openings from the Area above i.e 1 door (2.1m x 0.75m) and 1 window (0.6m x 0.6m) >> (1.6m2 + 0.36m2) = 1.96m2* Hence; Area to be tiled = 15.12m2 - 1.96m2 = 13.16m2Now we revert to our earlier formulas i.e AREAS TO BE TILED / AREA OF 1 PACK = NUMBERS OF PACKS NEEDED* 13.16m2 / 1.36m2 (area of 1 pack) = 9.7 packs = 10 packs (approximate to next whole number)TOTAL TILES NEEDED FOR TOILET WALL: 10 PACKSADD 10% FOR WASTE >> 10 Packs + 10% of 10 = 10 + 1 = 11 packs neededHENCE BUY 11 PACKS Do the above for all space in the building; You can even prepare an excel file with the formulas so you won't need calculations each time; just input the area of floor and area of tiles and bingo.Thanks for Following... Thanks. 2 Likes Re: How To Calculate The Quantity Of Tiles Needed; Selecting Tiles & Types. by josdiv(m): 9:44pm On Oct 12 Nice one! 1 Like