2006-10-23 09:32:04 · 8 answers · asked by stm 1 in Science & Mathematics ➔ Mathematics
Let's convert to meters (assuming you mean 400mm x 400mm)
400mm = 400/1000 m = 0.4m
Area on one slab in meters is .4x.4 = .16 sq m
To cover 147sq mtr --- 147/.16 = 918.75
Therefore we'll need 919 slabs
2006-10-23 09:38:51 · answer #1 · answered by Wil T 3 · 0⤊ 1⤋
400mm small element paving slabs have a surface area of 0.4m*0.4m=0.16m^2.
Therefore for 147m^2, you will need 147/0.16=918.75=919.
However, that means that in some places you will have lots of little bits put together to make up the area (i.e. the area is unlikely to be such that 919 slabs will fit in exactly without needing to be cut, and if they do need to be cut, using 919 the cut off bits will need to be used elsewhere). You therefore have two options:
1. Add a few. To make it a nice round even number, and to make sure you have enough, I'd guess at ordering 1000.
2. If you have a rectangular area, measure the length of each side. Divide the length of each side in metres by 0.4m (and round up), and that is how many slabs are needed in that direction. Multiply the two numbers together to get the total number of slabs needed. It won't be so easy if it's not rectangular though.
2006-10-23 18:12:26 · answer #2 · answered by Steve-Bob 4 · 0⤊ 0⤋
I'm guessing you mean 400mm x 400mm.
So each slab is 0.4m x 0.4m = 0.16 sq m
Divide total area by size of one slab then round up to the next whole number and you have your answer.
2006-10-23 16:40:12 · answer #3 · answered by Hal W 3 · 0⤊ 0⤋
I normally draw the area to be covered on a large piece of squared paper. Then draw in the slabs in rows and columns. There may be some cutting at the edges. This depends on the shape of the area to be covered.
2006-10-23 18:47:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
a square 2 metres long and 2 metres wide (4 square metres)would need 25 of those little slabs to cover it.
25 slabs to cover 4 square metres
(x3)
75 slabs to cover 12 square metres
(double it)
150 slabs to cover 24 square metres
(x5)
750 slabs to cover 120 square metres
You can work out the rest - but I think you need to buy larger slabs!
2006-10-24 04:24:39 · answer #5 · answered by Stanleymonkey 2 · 0⤊ 0⤋
To give a correct answer, we would need to know the width of the spacers to be used for grouting if any. Also, we would need to know the level of acceptable wastage on tile cutting for the edges and the shape of the area to be tiled as this would affect the level of tile cutting.
2006-10-24 04:30:33 · answer #6 · answered by advent m 3 · 0⤊ 0⤋
approx 920 slabs (each slab = 0.16m2)
2006-10-23 18:16:22 · answer #7 · answered by alan j 3 · 0⤊ 0⤋
well there is 1000 mm in a 1 meter, do the math
2006-10-23 16:40:30 · answer #8 · answered by beardedredhead7 4 · 0⤊ 1⤋