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Posted: Tue Jul 26, 2016 3:11 pm
by rks
just laying indian sandstone riven but calibrated , finding some are for example at least 10mm longer or wider , how does one accommodate such a big variance when laying when gap between is normally around 10mm , would it be ok to trim down some of these and if so would i need to cut at same angle /camber ? sizes im using are 275x275, 275x560,560x560 and 560x845
thanks
Posted: Tue Jul 26, 2016 10:43 pm
by r896neo
Lay them tight if stuck and then grind out the joints to match. Try to let the gringer wander a little to avoid a poker straight edge. Absolutely dont worry about trying to cut a reverse camber like the flags have, its unneccesary and could be quite dangerous.
Posted: Wed Jul 27, 2016 6:41 am
by rks
okay thanks for that , I think I will have to remove 1 of the larger slabs , been laid for 2 days now as gap will be much larger if I don't remove it , so i'll do as you suggested .
Posted: Wed Jul 27, 2016 11:45 am
by Tony McC
Are you saying the flags are out of plan size tolerance (should be within ± 3mm) or is it the joint widths that are causing you problems?
If the flags are oversize, get on to the supplier, but if it’s the joint widths, there’s a page dealing with joint balancing
Edited By Tony McC on 1469616344