How to Choose Sandpaper Grits for Bare Wood Furniture

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Choosing sandpaper for bare wood furniture is less about finding one perfect grit than moving through the right sequence. Start too fine and you may polish the surface before removing dents or mill marks. Start too coarse and you can leave scratches that remain visible under stain or a clear finish. The wood species, the condition of the piece, and the finish you plan to apply all affect the choice.

Choose the starting grit

For sound, unfinished furniture with only light roughness, start around 120 grit. Use 80 or 100 grit when you need to remove old finish, level uneven areas, or erase deeper scratches—but only if the wood is thick enough and you can control the tool. Coarse paper removes material quickly and can round edges, dish soft areas, or cut through veneer before you notice.

If the piece has a thin veneer, skip aggressive machine sanding. Veneer can be less than 1 mm thick. Begin by hand with 120- or 150-grit paper on a flat block, use light pressure, and stop as soon as the surface is clean. If the old coating is thick, a suitable stripping method may be safer than sanding through it.

Use a sensible grit sequence

Each grit should remove the scratches left by the previous one. A practical sequence for many solid-wood pieces is 80, 120, 150, then 180. If the surface needs little correction, start at 120 or 150 and finish at 180. You do not have to use every grit; the important part is not skipping so far that the next abrasive cannot remove the earlier scratches efficiently.

For a natural oil or clear finish, 180 grit is a common stopping point. Sanding much finer can burnish some woods, making them less absorbent and causing uneven oil or stain uptake. Follow the finish maker’s instructions, since products vary. Painted furniture usually does not need a polished surface: 120 to 150 grit is often enough for bare wood, with the goal of removing defects and giving the primer a clean surface.

Use a basic assortment of aluminum-oxide sanding sheets for hand sanding. A low-cost pack is fine for occasional furniture work if the sheets are consistent and you can replace them when they clog or lose bite.

Grits by task

Account for wood and finish

Open-grained woods such as oak show scratches readily, especially when stain darkens them. Check the surface in raking light—light held low across the grain—and sand with the grain for the final pass. Birch, maple, and other close-grained woods can take stain unevenly; sanding to an overly fine grit may make that worse rather than better. Test the planned stain on an offcut or an inconspicuous area before treating the whole piece.

For stain, do not assume finer paper always gives a better result. Sand uniformly, remove all dust, and follow the stain label’s preparation guidance. If the finish will be paint, spend more effort correcting dents and defects than chasing a very fine grit. Primer and paint can hide small color differences, but they will not reliably conceal deep sanding grooves or a wavy surface.

Choose hand or machine sanding

A random-orbit sander is useful on broad, flat solid-wood panels. It removes material faster than hand sanding, but keeping it moving matters: pausing can leave swirls or shallow depressions. Finish each stage with a light hand-sanding pass in the direction of the grain. For shaped legs, narrow rails, profiles, and veneer, use a sanding block or folded paper rather than forcing a power sander into corners.

A 5-inch random-orbit sander is a reasonable purchase if you refinish furniture regularly or have large tabletops to prepare. For one small project, sanding by hand is slower but avoids buying a tool and gives better control on delicate parts. Use compatible discs; holes need to line up with the sander’s dust ports for effective extraction.

Check your work between grits

Vacuum the surface or brush off dust after each grit. A stray coarse grain trapped under a finer sheet can make a long scratch. Wipe the wood with a clean, dry cloth, then inspect it under angled light. If scratches from the previous grit remain, continue with the current grit rather than moving on. Pencil marks drawn lightly across the surface can help show whether you have sanded evenly; remove them before finishing.

Replace paper when it stops cutting, clogs with resin or dust, or tears. Pressing harder on worn abrasive rarely speeds the job and can produce heat or uneven pressure. On resinous woods, a fresh sheet may save time. Wear eye protection and a suitable dust mask, and connect extraction when using a powered sander—fine wood dust is easy to breathe in and difficult to clean off a room.

What to buy for a typical project

For a small solid-wood piece in decent condition, a pack covering 120, 150, and 180 grit is usually enough. Add 80 or 100 only if there are defects that genuinely need aggressive removal. A sanding block helps keep hand pressure even, while hook-and-loop discs are convenient for a random-orbit sander. Choose ordinary aluminum-oxide abrasive for general furniture work; premium ceramic paper is difficult to justify for a one-off project, though it can last longer during heavy sanding.

Do not buy a large mixed-grit pack just because it contains the most sheets. Match the abrasive to the surface and finish, then buy enough fresh paper to avoid stretching a clogged sheet past its useful life. Careful inspection and a clean grit progression matter more than an expensive abrasive.