I agree with most arguments regarding the rights and wrongs of charging for m2 fixed. But as stated above, the wastage should be Incorporated at the pricing stage ie, 5%, 10%, 15% depending on the size of the tile.
We all know as professionals it is near impossible to quantify a job down to the last tile, without setting a datum line and centering each wall/floor to give the most aesthetically pleasing effect.
If for example I am using a 600x600 tile, and to centre one wall to give equal cuts of lets say 450 either side, then I am wasting 150x 600, If I can use these off-cuts in the installation then I will.
In my opinion the 450x600 is a full tile, it has taken if anything more time to fix than a full tile, as it has had to be cut. Ergo. the amount of tiles handled/ fixed/ cut, should be charged for.
Again this should be allowed for in the pricing stage, I know a lot of quantity surveyors would disagree with me, but I am still fighting battles with certain QS's :mad2: