What would be an acceptable height difference between slabs when laying a porcelain paving patio. I know when laying tiles 'lippage' is normally ok if 1-2mm but have no idea on what is ok for patios. The patio's only started to be laid and a slab or two seem a bit too high in co...
The levelling aid, primarily for use when preparing a dry sand-cement sub-layer for paving or patio slabs or tiles, comprises an upper portion 1 with a lower surface for engaging a paving slab or the like and an offset portion 2 attached to the upper portion so that the axes of the ...