4
6 ft x 6 ft = 1828.8 mm * 1828.8 mm = 3,344,509.4 mm2 Area of each slab = 400*400 mm2 = 160,000 mm2 So minimum number of slabs = 3,344,509.4/160,000 = 20.9 ie 21 slabs. However, this requires almost all the offcuts to be used and, unless the shape is an exact number of tiles across, you will end up with an area that is a mosaic.
The answer will depend on the size of the patio slabs.
140
14
4
6 ft x 6 ft = 1828.8 mm * 1828.8 mm = 3,344,509.4 mm2 Area of each slab = 400*400 mm2 = 160,000 mm2 So minimum number of slabs = 3,344,509.4/160,000 = 20.9 ie 21 slabs. However, this requires almost all the offcuts to be used and, unless the shape is an exact number of tiles across, you will end up with an area that is a mosaic.
The answer will depend on the size of the patio slabs.
20 I believe
To calculate how many 400mm x 400mm paving slabs fit in one square meter, first convert the dimensions of the slab to meters: 0.4m x 0.4m. The area of one slab is 0.16 square meters (0.4m x 0.4m). Therefore, to find how many slabs fit in one square meter, divide 1 square meter by the area of one slab: 1 / 0.16 = 6.25. Since you can’t have a fraction of a slab, you can fit 6 slabs in one square meter, with some leftover space.
140
You will need 63 44cm x 44cm slabs to cover that area.
14
1125
400 at least
41,000 of them.
The answer will vary slightly depending on assumptions: will the slabs have a space between them, and will you be cutting the slabs to fill fractions. 21 feet is equal to 14.2 of the 450 mm slabs. 19 feet is equal to 12.9 of the slabs. To complete the rectangular area, 14.2 x 12.9 = 183 slabs.