Leveling clips for large-format tile
Clip large-format tile (any edge 24" or more) on every edge, with clips every 8–12 inches. Use the closer spacing on thin or very long tile, because it flexes. At 12-inch spacing a 24×24 floor takes about 1 clip per square foot; at 8 inches, about 1.5. Clips hold edges flush, but you still need a flat substrate and full thinset coverage. Back-butter every tile.
Clips per 100 sq ft by large-format size
Straight lay, 10% added for cuts. "Close" is a clip every 8 inches, which many setters use on large or thin porcelain.
| Tile | Clips per tile (12") | Clips / 100 sq ft (12") | Clips / 100 sq ft (8") |
|---|---|---|---|
| 24×24 | 4 | 111 | 165 |
| 24×48 | 6 | 86 | 129 |
| 32×32 | 6 | 100 | 132 |
| 48×48 | 8 | 62 | 93 |
Your own room size? Use the clip calculator and choose "Close" spacing under More options.
Large-format tips
- Flatness matters more than clips. Large tile bridges low spots and rocks on high ones.
- Back-butter every tile and use a trowel that gets full coverage. Lift a tile now and then to check.
- Clip a couple of inches in from the corners so the wedge seats properly.
- Long tile (24×48 and up) is rarely dead flat. Keep offsets to a third or less.
- A narrow 1.5 mm or 2.0 mm clip suits rectified large-format; check the tile maker's joint.
Frequently asked questions
How far apart should leveling clips be on large tile?
Every 8 to 12 inches along each edge, with at least two clips on every edge over 24". Go closer on thin or very long tile.
Do I need leveling clips for 24×24 tile?
They are strongly recommended. Large tile shows lippage the most, and clips hold the edges flush while the thinset cures.
Which clip size for large-format porcelain?
Most rectified large-format is laid with a 1/16" joint, so a 1.5 mm clip, or 2.0 mm for a little more room. Follow the tile maker's minimum joint.
