Large-format porcelain panels — often 1.2m x 2.4m or larger, and sometimes under a few millimetres thick — let installers cover a wall or floor with a near-seamless appearance and dramatically fewer grout lines than standard tile sizes.
The trade-off is handling: panels this size and thinness are fragile before installation and require specialist suction-cup equipment, a two-person minimum crew, and a genuinely flat substrate. Not every tile installer is set up to handle them — ask specifically about large-format experience before hiring.
Substrate and installation cost
Because large panels do not flex to hide substrate imperfections the way smaller tiles can, floor and wall flatness tolerances are stricter, which sometimes means additional levelling work before installation even starts. Labour cost per square metre is typically higher than standard tile, partly offsetting the material savings from needing less grout and trim.
Where it pays off
Large-format panels suit feature walls, shower walls, and open floor areas where a continuous, minimal-line look is the design goal. For small, cut-heavy bathrooms with many corners and fixtures, the waste from cutting large panels can erase much of the visual and cost benefit — standard or medium-format tile is often the more practical choice there.