400 at least
Chat with our AI personalities
20 ft= 6096 mm (6096 * 6096) / (450 * 450) = 183.512178 184 slabs
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.
45 required actually its 75 required (15 * 5)
22 will cover the space. Get 25 for any odd shapes.
100