How to Sand Wooden Benches for Indoor and Outdoor Use (60–320 Grit)

Wooden benches, whether in the garden, entryway, or dining area, need sanding to look their best and stay safe for everyday use. Sanding removes splinters, smooths surfaces, and prepares the bench for stain, paint, or protective sealer.

Why Sand Benches?

Benches endure heavy use and exposure, often leading to rough spots, scratches, and weathering. Sanding ensures comfort, prevents splinters, and allows finishes to adhere evenly for long-lasting durability.

Tools You’ll Need

• Orbital sander for flat seat and back surfaces
• Sanding sponges for edges and contours
• Clamps to stabilize the bench
• Wet/dry sandpaper sheets (60–320 grit)
• Vacuum and tack cloth
• Mask, goggles, and gloves

Recommended Grit Sequence

• 60 grit: Removing weathered wood, paint, or splinters.
• 100 grit: General smoothing after coarse sanding.
• 150 grit: Prepping surfaces for stain or primer.
• 220–320 grit: Final sanding for a smooth, touchable finish.

Step-by-Step Process

1. Prep the bench. Clean off dirt, old coatings, and debris.
2. Start with 60 grit. Use 60 grit (50-pack) for stripping paint and smoothing rough boards.
3. Refine with 100 grit. Smooth the surface with 100 grit (100-pack) sheets.
4. Prep with 150 grit. Use 150 grit (25-pack) before applying finish.
5. Finish with 220–320 grit. Lightly sand with 320 grit (25-pack) for comfort and polish.
6. Clean thoroughly. Vacuum dust and wipe with tack cloths.
7. Apply finish. Stain, paint, or seal the bench depending on location and style.

Special Cases

For outdoor benches, stop at 150–220 grit to maintain texture for stain absorption. For indoor benches, sanding up to 320 grit ensures a smooth, comfortable seating surface.

Pro Tips

• Sand with the grain for the cleanest results.
• Use sanding sponges to reach curved arms and edges.
• Apply multiple thin coats of finish for durability.
• For rustic benches, stopping at 100–150 grit can preserve character.

Aftercare

• Reapply protective finishes every 1–2 years outdoors.
• Dust and wipe benches regularly to maintain finishes.
• Cover outdoor benches in winter to extend their lifespan.

FAQs

• Do I need to sand new benches? Yes—factory finishes may still be rough or uneven.
• Can I sand benches by hand? Yes, but orbital sanders save time on large surfaces.
• What grit is best before staining? 150–220 grit gives the right texture for stain absorption.

Watch & Learn

Sanding benches improves both comfort and appearance. Stock up on coarse sheets, medium grits, and fine sandpapers to prepare your benches for refinishing projects.