Restoring an Antique Wooden Level

Article 87: Restoring an Antique Wooden Level

By: A Woodworker Who Believes Spirit Levels Should Still Have Soul

Wooden spirit levels from the early 1900s are not only beautiful—they’re surprisingly accurate when restored. Here’s how to revive one.

Materials

• Old wooden level (Stanley, Disston, etc.)

• Brass polish

• Mineral spirits

• Shellac or boiled linseed oil

Tools Needed

• Flathead screwdriver

• Fine steel wool

• Sandpaper (400–1000 grit)

• Small brush

• Rag and cotton swabs

Steps

1. Disassemble Vials

   • Carefully remove brass vial covers. Clean glass and check for intact bubble tubes.

2. Clean Wood

   • Wipe wood clean with mineral spirits. Lightly sand if heavily soiled.

3. Polish Brass

   • Remove oxidation with steel wool and polish. Be gentle to preserve patina if desired.

4. Check Accuracy

   • Lay level on flat surface, mark bubble position. Flip 180° and compare. Shim if off.

5. Refinish

   • Apply shellac or oil for a rich, vintage look. Buff gently when dry.

Sketch – Cross Section of Restored Level

 [ Brass Cap ]=====[ Vial ]=====[ Brass Cap ]
       |                             |
   [ Wood Frame – smoothed and oiled ]