Best Sander for Furniture Refinishing — Orbital, Detail, or Belt?

You stripped a dresser down to bare wood and now you’re standing in the sanding aisle wondering which sander to buy. Random orbital, detail sander, belt sander — they all claim to be great for furniture work. The clerk isn’t helping. Three different sanders at three different price points, and you just need something that won’t leave swirl marks on your grandmother’s hutch.

Each type of sander has a specific job it does well and specific jobs it does poorly. Here’s which one you actually need for furniture refinishing — and when you might need more than one.

Random Orbital Sander: The All-Rounder

If you’re buying one sander for furniture refinishing, buy a random orbital. A 5-inch random orbital sander handles 80% of furniture sanding tasks competently. The dual-action motion — spinning and orbiting simultaneously — produces a scratch pattern that’s virtually invisible after finishing. You can sand with the grain, across the grain, or at an angle without leaving obvious directional marks.

For removing old finish, start with 80-grit and work through 120, 150, and 220. The random orbital won’t strip paint as aggressively as a belt sander, but it won’t gouge the wood either. On flat surfaces like table tops, drawer fronts, and panel sides, it’s the ideal tool.

The limitation: random orbitals struggle in tight spaces. Corners, crevices, molding profiles, and the inside edges of frames are beyond the reach of a round sanding pad. For those areas, you need a different tool.

Best picks for furniture work: Bosch ROS20VSC (corded, around $70, excellent dust collection) or Festool ETS 125 (corded, around $300, best-in-class but expensive). For cordless, the Milwaukee M18 random orbital is solid.

Detail Sander: The Corner Specialist

A detail sander — sometimes called a mouse sander or corner sander — has a triangular pad that reaches into corners and tight spaces where a round pad can’t go. If you’re refinishing furniture with any kind of molding, routing, or decorative trim work, a detail sander is nearly essential.

Chair spindles, table aprons, carved details, and the inside corners of raised panel doors are all detail sander territory. The vibration pattern is oscillating (back and forth), which gives you control but removes material slowly. This isn’t a tool for heavy stock removal — it’s a finishing tool for areas your random orbital can’t reach.

Most furniture refinishing projects need both a random orbital for flat surfaces and a detail sander for everything else. Buying just a detail sander would make flat surface work painfully slow. Buying just a random orbital leaves you hand-sanding every corner.

Best pick: Bosch GDA18V-16N (cordless, part of the 18V battery system) or the Fein MultiMaster for an oscillating multi-tool approach that handles detail sanding plus other tasks.

Belt Sander: The Heavy Remover

A belt sander is aggressive. It removes material fast — sometimes too fast for furniture work. A 3×21 or 4×24 belt sander with 60-grit paper can take a table top down to bare wood in minutes, but it can also create divots, round over edges, and leave deep cross-grain scratches if you’re not careful.

For furniture refinishing, a belt sander makes sense in one scenario: stripping thick layers of paint or polyurethane from large, flat surfaces. If you’re dealing with a dining table that has five coats of old varnish, starting with a belt sander and 80-grit saves significant time compared to a random orbital alone. But you switch to the random orbital once you’re close to bare wood — the belt sander is too aggressive for final surface preparation.

Belt sanders also sand in one direction only, which means you must sand with the grain. Cross-grain belt sander marks are deep and hard to remove. On anything other than a perfectly flat surface, a belt sander is the wrong tool.

The Verdict: What to Buy

If you’re buying one sander: Random orbital, 5-inch, variable speed. It handles the most furniture refinishing tasks competently and produces a finish-ready surface.

If you’re buying two: Random orbital plus a detail sander. This combination covers flat surfaces and tight corners — everything a typical furniture refinishing project requires.

If you’re doing heavy stripping regularly: Add a belt sander to the lineup for initial paint and finish removal on large flat surfaces. But never use it as your finishing sander.

Skip the belt sander if you’re only refinishing one or two pieces. A random orbital with 80-grit handles finish removal adequately, just more slowly. The money you’d spend on a belt sander is better invested in a quality random orbital with good dust collection — your lungs will thank you more than a faster sanding speed ever could.