How do I cut laminate flooring without chipping the surface?

Laminate has a hard melamine wear layer over a fibreboard core. That wear layer is brittle, so it chips wherever the cutting edge lifts it rather than pushing it down.

What you'll need

• fine or downcut jigsaw blade
• mitre saw or laminate cutter (optional)
• masking tape
• pull saw or multi-tool for door linings
• pencil, square and tape

Step by step

1. Work out where the teeth exit for your tool.A jigsaw with a standard blade and a hand-held circular saw exit through the top face, so lay the boards face down. A mitre saw's blade comes down through the top face, so there the boards go face up.
2. Use a fine blade.A high tooth count, or a specific laminate blade. Coarse blades tear the wear layer regardless of orientation.
3. Consider a laminate cutter.A guillotine-style cutter shears the board with a blade rather than sawing it. No dust, no noise, a clean edge, and much faster for a full room of straight cuts.
4. Tape the cut line on the decorative face.It holds the wear layer together and protects the surface from the tool's baseplate.
5. Support the board close to the cut.A board that flexes as the blade passes chips much more. Clamp it to a bench or hold it firmly against a solid surface.
6. Cut on the waste side.Blade kerf plus the expansion gap means small errors accumulate quickly across a room. Leave the line on the keeper.
7. Remember the expansion gap.Every cut against a wall should leave the gap the manufacturer specifies, typically 10 to 12mm, which will be hidden by the skirting or the beading.
8. Undercut door linings rather than scribing round them.Lay a scrap board upside down as a height gauge and cut the lining with a pull saw or a multi-tool, then slide the flooring underneath. It looks far better than a scribed cut.
9. Use a template for pipes.Cut a hole about 20mm larger than the pipe, then cut a wedge out behind it, slide the board in and glue the wedge back. A pipe collar covers the joint.
10. Cut the last row to width face down.A rip along the length is where chipping shows most, because that edge often sits under a shallow beading. Score it first if the blade is coarse.

Tips

• A laminate guillotine cutter is cheap to hire and turns a dusty, noisy job into a quiet one.
• Undercutting door linings is worth the extra ten minutes on every job. Scribed cuts around architrave never look right.
• Keep offcuts over 300mm — they start the next row and reduce waste substantially.

Common mistakes

• Cutting face up with a jigsaw — The blade travels upwards through the board and lifts the brittle wear layer, chipping the visible face along the whole cut.
• Cutting to the wall without an expansion gap — Laminate expands and contracts with humidity. With no gap it lifts and peaks in the middle of the room, which cannot be corrected without lifting the floor.

If it doesn't work

Questions people ask