How to Sand Drywall for a Flawless Finish: Tools, Grits, and Techniques

Getting perfectly smooth walls is crucial for any professional or DIY painting project. This SEO-rich guide explains how to sand drywall seams and patches like a pro—covering the best sandpaper grits, tools, and finishing secrets for a dust-free, paint-ready surface.

Why Proper Drywall Sanding Matters

Sanding evens out joint compound, feathers seams, and removes tool marks so paint or primer goes on smoothly. If you skip steps or use the wrong sandpaper, your paint job will show every flaw.

1. Best Sandpaper for Drywall: Grit Guide

• 120 grit: For rough sanding and shaping joint compound after drying.
• 150–220 grit: For final smoothing and blending into the existing wall surface.

2. Tools You Need for Dust-Free Drywall Sanding

• Sanding pole for ceilings and high walls
• Hand sander or sanding sponge for corners and detail work
• Vacuum attachment or dust-collecting sander for cleaner air

3. Step-by-Step: How to Sand Drywall

1. Let joint compound dry fully before sanding.
2. Start with 120 grit for rough edges, using light, even strokes.
3. Switch to 150–220 grit for blending and final finishing.
4. Use a bright work light to reveal imperfections as you go.
5. Wipe walls with a damp sponge or cloth to remove all dust before priming or painting.

Drywall Sanding Pro Tips

• Sand gently—too much pressure can damage the paper facing.
• Wear a dust mask and eye protection, especially in enclosed spaces.
• Change sandpaper frequently to avoid clogging and streaks.

Watch & Learn

For best results, use premium drywall sandpaper sheets from eQualle, and explore more painting prep tips on our DIY blog.