How to Sand Wooden Cupboards Before Refinishing

Cupboards provide essential storage in kitchens, bathrooms, and laundry rooms, but over time scratches, stains, and dull finishes can build up. Sanding before refinishing restores smoothness and prepares the surface for stain, paint, or sealer. This guide explains how to sand cupboards effectively for a polished, long-lasting result.

Why Cupboard Sanding Matters

Cupboards endure heavy daily use. Without proper sanding, new finishes may bond unevenly and peel. Sanding ensures smooth surfaces, consistent absorption, and professional-quality refinishing results.

Tools You’ll Need

• Random orbital sander for flat panels and doors
• Sanding blocks for frames and drawer fronts
• Sanding sponges for trim and curved edges
• Wet/dry sandpaper sheets (80–220 grit)
• Vacuum and tack cloth
• Stain, paint, or durable cabinet finish

Best Grit Sequence for Cupboards

• 80 grit: Removes scratches, old coatings, and water stains.
• 150 grit: Smooths surfaces after coarse sanding.
• 220 grit: Final prep for stain, paint, or sealer.

Step-by-Step: Sanding Wooden Cupboards

1. Prep cupboards. Remove doors, drawers, and hardware. Label pieces for easier reinstallation.
2. Initial sanding. Begin with 80 grit (25-pack) to strip finishes and smooth rough areas.
3. Smooth surfaces. Switch to 150 grit (50-pack) for consistent sanding across doors and frames.
4. Final prep. Finish with 220 grit (100-pack) to create a finish-ready surface.
5. Clean dust. Vacuum and wipe with tack cloth before finishing.

Special Cases

For veneer cupboards, sand lightly to avoid sanding through thin layers. Painted cupboards may require chemical stripping before sanding. Antique cupboards with carvings should be sanded by hand to protect details.

Pro Tips

• Sand with the grain for smoother results.
• Work door by door for accuracy and control.
• Test finishes on the inside of a cupboard before applying everywhere.

Aftercare

• Protect finish: Use gentle cleaners and avoid harsh chemicals.
• Re-finish as needed: Light sanding with 220 grit before recoating keeps cupboards looking new.
• Use liners: Protect shelves with liners to reduce wear.

FAQs

• Do I need to sand to bare wood? Yes, if finishes are failing. For light updates, scuff sanding may be enough.
• What finish works best? Polyurethane for durability, stains for depth, and paints for bold style.
• Can I sand by hand? Yes—especially useful for frames, corners, and trim.

Watch & Learn

Sanding cupboards is the foundation of a flawless refinish. With the right grit sequence and tools, you’ll restore both beauty and durability, keeping your cupboards stylish and functional for years to come.