House planning - Avoid waste

Hello,

we are currently in the final stages of our house planning. We want to lay 60x60 tiles (calibrated) in large parts of the ground floor. The largest room here is, of course, the living/dining room with open kitchen (approx. 55 sqm). Currently, the room is 5 meters wide. Now the thought occurred to me whether it makes sense to adjust the room width a little so that later on, when laying tiles, waste can be avoided.

My calculation:
- 8 tiles at 60 cm = 480 cm
- 9 joints at 0.4 cm = 3.6 cm
-----------------------------
Total width 483.6 plus some buffer = 485

Making the room 15 cm narrower is no problem. The floor plan allows for it and there is still enough space.

Therefore my question(s): Does my calculation make sense? Are 4 mm for the joints too optimistic? Is the buffer sufficient?

Making the room smaller to avoid tile waste? I don't think I can understand that. You can't really plan it that precisely anyway, I think. You don't throw away half a tile, but use it for the next spot where half is needed. In the end, you want an 80 anyway, so you've replanned everything for nothing. ;)

Hi!

So - to avoid wastage, the thought really isn’t worth it. Besides, you have to calculate properly: 8 tiles = 7 x grout lines (2mm for me) + 2 x wall spacing (at least 10 mm - and what about plaster :)?).

More important is the tile pattern - and that now depends on how to proceed in the area of the doors. Do you get one or two grout lines in the passage? That might actually look really awful if instead of the 60 cm tiles, a 20 cm tile and then another narrow piece are laid.

And with a room length of 10 or 11 m: expansion joint!?

I have parquet :p.

Regards, Tom.

Hello, in the described example you have a cut-off of 20 - 30 cm, since you can use both edge pieces. So we are talking about 1-2 sqm of cut-off. And therefore replan everything? Sorry, no understanding ..