How to seal timber floors

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How to seal timber floors

View the video

Project Overview

Sealing a timber floor helps preserve and highlight the beauty of the timber. It also makes it a lot easier to clean. We’ll show you how to seal the floor with a lambswool applicator. You’ll also see how using a paint brush makes it easier to seal around the edges. 
Continue to step-by-step instructions
This D.I.Y. Advice is part of a series How to sand and seal timber floors

Step by Step Instructions

1 Seal the edges and corners of the timber floor
2 Seal the rest of the timber floor
  • Step 1. Seal the edges and corners of the timber floor

    Start by stirring your sealant thoroughly. Then carefully paint in the corners and edges of the floor with a paint brush. This is called “cutting in”. A good idea is to cut in about 100mm from the edge. This allows you to do the rest of the floor quickly without getting sealant on the walls or skirting boards.
  • Step 2. Seal the rest of the timber floor

    Now use the lambswool applicator to apply sealant to the rest of the floor. Start in a far corner and work your way towards a doorway. Once you are done, let it dry before doing a second coat. Drying times are normally on the side of your tin. Sometimes, a light hand sand between coats can help to keep the timber feeling smooth.

Tools and Materials


  • Cloth
  • Lambswool applicator
  • Paint brush
  • Paint tray


  • Paint
  • Sealer

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