porcelain tiles

[piehead]

What size trowel would you use for 600 by 300 porcelain tiles also what size would you keep for the grout lines. We are using the same size tiles on both the wall and floor, thanks.

3mm spacer, trowel format is too big for 6mm on walls so use 8mm if the floor is wood use the same 8mm if concrete use a 10mm

101

I've always used a 20mm round notch trowel for very large porcelain in the showroom-never had any problems;used PCI NANOLIGHT ,however,the 20mm will eat up your adhesive quick.........