Will the merchant cut sheet material to size for me?

This service is the answer to at least three separate problems — transport, handling and the fact that cutting a full sheet accurately at home is genuinely difficult — and a surprising number of people do not know it exists. It is also the cheapest way to improve the quality of a project, because a panel saw cuts straighter and squarer than almost anything you can do on a kitchen floor.

What you'll need

• A written cutting list, on paper or a phone
• A sketch of the layout
• A tape measure, to check the pieces before you leave

Step by step

1. Ring the branch first.Policies vary between chains and between branches of the same chain. Ask whether they cut, how many cuts are free, what the charge is after that, what tolerance they work to and whether the saw is manned all day. Ten seconds on the phone prevents a wasted trip.
2. Work out your cutting list before you go.Every piece, with its length and width, and how many of each. Add which dimension has to run along the sheet if the face has a grain or a pattern. Write it down — do not try to explain it at the saw.
3. Plan the layout, not just the pieces.A panel saw cuts right across the sheet, so your pieces have to be achievable with a series of full-width cuts. Sketch the layout so you know it works and can hand it over. This is exactly the same thinking as planning any cutting list.
4. Add a trim allowance to anything that must fit.Ask for pieces a few millimetres oversize on the dimensions that have to be exact, and trim at home. This is the single most useful habit with a cutting service: you cannot add material back.
5. Ask for the factory edges to be trimmed off.The outer edges of a sheet are often damaged and rarely square. Ask for a skim cut down one long edge and one short edge first, and take all your measurements from those two.
6. Watch the first cut and check it.Measure the first piece before they cut the rest. A misread number caught at that point costs nothing; caught at home it costs a sheet.
7. Check everything before you leave the store.Count the pieces and measure each one against your list. Once it is in the car it is yours, and there is no way to prove a cut was wrong.
8. Label the pieces as they come off the saw.Pencil the part name on each piece straight away. Six rectangles of birch ply in a car boot become indistinguishable in about four minutes.

Tips

• Even one cut is worth having: asking for a full sheet to be halved solves transport, handling and most of the difficulty of cutting it at home.
• Timber cutting is usually rougher than sheet cutting. Merchants will chop a length in half on a chop saw as a courtesy, but that is a transport cut, not a size cut.
• The saw operator is doing this all day and will spot an impossible layout. If they say a cut cannot be made in that order, they are right — ask them how they would do it.
• Some branches only run the saw at certain times or when a trained operator is on shift. Weekday mornings are usually safest.

Common mistakes

• Asking for exact finished sizes on parts that have to fit an opening — A panel saw is accurate but not to joinery tolerance, and an opening is rarely square. Ask oversize and scribe or trim at home.
• Turning up without a written list — Explaining a cutting plan verbally at a busy saw is how pieces come back the wrong way round. A written list with a sketch takes five minutes to prepare and removes the whole risk.
• Forgetting the kerf when planning tight layouts — Every cut takes a few millimetres out of the sheet. If your parts add up to exactly 1220mm across the width, the last one will be short by the width of two saw cuts.
• Not checking before leaving — There is no way to demonstrate afterwards that a piece came off the saw wrong. Measure everything in the car park.

Questions people ask