how many slabs?

[sjs]

hi I have an area of 28m squared.How many paving slabs would i need if they each measure 450mm x 450mm.Thanks in advance.

[pug100]

Convert the slabs measurements to sq m
0.45m x 0.45m = 0.2025 sqm
28/ 0.2025 = 138.2716
so 139 slabs not allowing for breakages.

[Whickerman]

I'm probably reading the question in an incorrect way, but just in case...

28 square metres is not the same as 28 metres squared - pug has given you the answer for 28 square metres, but if you really do have 28 metres squared it's 784 square metres, i.e. 28m long x 28m wide.
That would need almost 4000 slabs...

[Whickerman]

also - your 28 square metres - if it's 7x4 you'll need 144 slabs as you won't want to put bits of slabs in to make up the area. 7 metres long would take 15 slabs plus a piece of another, and 4 wide would take just over 8.

[Frontier-Man]

Hiya, well I just worked out roughly 25 m2 for an L shaped patio im quoting and came up with 120 of the 450mm2 flags, and just came here to check if I was off, but that Wickerman is good!
But being a Druid I would usually say never trust them Wicker people nurf nurf

[Frontier-Man]

Oh am I seven years to late with my answer, darn must of time warped again!