What Grit Should I Use For Prep Sanding Raw Wood? | General Finishes

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The most critical part of finishing a piece of furniture happens before you open a can of stain or paint - it starts with the sanding. Sanding is critical to creating a smooth surface. Use the following sanding sequences for new wood:

PAINT

For wood that is going to be painted, use 120-grit, followed by 150-grit.

WATER-BASED STAINS

  • For closed-grain woods (such as Cherry, Pine, Maple, Birch or Alder) that will be stained with water-based products use 150-grit followed by 220-grit.
  • For open-grain woods (such as Oak, Ash, Mahogany, Parawood) that will be stained with water-based products use 120-grit, followed by 150-grit, then 180-grit.

OIL-BASED STAINS

  • Sand closed grain woods with no finer than 180-grit.
  • Sand open grain woods with 120-grit followed by 150-grit, then 180-grit.

CLEAR-COATED WITH WATER-BASED PRODUCTS

For wood that will be clear-coated with a water-based topcoat, use 120-grit, followed by 150 or 220-grit.

CLEAR-COATED WITH OIL-BASED PRODUCTS

For wood that will be clear-coated with an oil-based topcoat, sand up to 150-grit.

Do not over sand with the final grits. You will create a surface that is so smooth it will not accept a finish.

Instructional Video: How to Prep Sand New or Raw Wood

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  • Preparation and Sanding
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