Answer
For tabletop refinishing, use 120 only for old finish or roughness, then 180 and 220 before finishing.
Why it happens
Large flat furniture surfaces need gradual grit steps and even pressure to avoid waves and visible scratches.
Recommended grit
Use 120 for old finish or roughness, then 180 and 220 before stain or finish.
Wet or dry
Dry.
Success check
The tabletop feels flat and shows an even scratch pattern before finishing.
What to do
- Use a sanding block or flat backing.
- Start with 120 only if old finish or roughness remains.
- Sand evenly with 180, then 220.
- Remove dust before stain or finish.
Avoid: Do not use fingertips as the main pressure on a flat tabletop.