DIY & Repairs guide

Sand and seal original wooden floorboards

Prepare, sand and seal old wooden floorboards for a hard-wearing finish, from fixing loose boards and hiring a sander to choosing oil or lacquer.

Estimated time: 2–4 days for one roomUpdated: 2 October 2026

Use this guide when you have lifted carpet to find pine boards worth saving. You need to be able to clear the room completely, hire a floor sander and edging sander, and wear proper dust protection.

Step by step

  1. Check the boards are worth sanding

    Look for boards that are split, very thin at the tongues, badly patched or rotten, and note how many need replacing. Press along each board and mark loose or squeaky ones with chalk. Old boards may have been painted or stained years ago; if your home is older and you suspect old paint, it may contain lead, so do not dry sand it and get advice before going further. Count the gaps between boards and decide whether you can live with them or will fill them.

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