Help!: 2mm spacers with floor tiles? or another size?

[blocko]

Im fitting 31x45cm tiles to the wall using 2mm spacers, but was wondering if I should use the 2mm spacers with the 31x31 floor tiles that I have, or go for something bigger?
I have purchased a load of 4mm spacers, but now unsure what to do.
or
do I go 3mm for everything

The tiles are Padova, and I have underfloor heating (if that makes any difference?)

Many thanks

GEOFF

[tile55]

Have you confered with the client? what colour grout are you using? why do yo need the same grout line as the walls?
Personally I would go for 3-4mm if the floor was reasonably level and the tiles were all the same batch code, other wise I would consider 5mm. Ultimately it is what the client wants thats important.

[david campbell]

2mm isn't really ideal for floors although when using travertine or polished tiles it is more common,however if you are planning to match the grout lines through the floors and wallls i would opt for 3mm as 4mm seems a bit big for walls,if there is no need to match the grout lines then 4mm would be ideal for floors

[grumpygrouter]

With UFH I would def go for a bigger joint! What is the substrate?

[ashley600]

with padovers i normally use 2mm on the walls and 4m on floors

[robbbin]

Never use them rely on the eye only use as pegs for large format as above said........ travi and polished 2mm joint on floor

[grumpygrouter]

Never use them rely on the eye only use as pegs for large format as above said........ travi and polished 2mm joint on floor

Even with a timber substrate?

[davy_G]

I like 3mm on floors. But as grumps says might be safer with 4's as there is UFH, especially if its ply.

[blocko]

It is a concrete floor (with insulation boards under the UFH). Probably going to use ivory grout on the walls, but not sure what colour for the floor grout...... any ideas people?

[tile55]

It is a concrete floor (with insulation boards under the UFH). Probably going to use ivory grout on the walls, but not sure what colour for the floor grout...... any ideas people?

Mapei Jasmine Ultracolour

[davy_G]

Me, id go gery on the floor, or silver grey, but thats it, still has to be grey if its a floor.

Anything else will end up grey in time.

[robbbin]

Even with a timber substrate?

why use them on floors, on any bag of powder whatever make does not mention you must use spacers on timber floors.. Ive worked in mainland europe dont even sell them, they are a D I Y product, Ive 3 boxes various sizes use them only on large tiles as pegs then re use

[grumpygrouter]

why use them on floors, on any bag of powder whatever make does not mention you must use spacers on timber floors.. Ive worked in mainland europe dont even sell them, they are a D I Y product, Ive 3 boxes various sizes use them only on large tiles as pegs then re use

Wasn't commenting on the use of spacers, that is up to the individual tiler, was enquiring as to whether you would go down to a 2mm joint on a timber floor?

[doug boardley]

4mm for me on a floor, down to 3mm at a push

[enduro]

Just laid 20sqm pearl oyster on a floor for kitchen company...they wanted 15mm grout joints....must say it did look nice when done