Best sandpaper for wood
The best sandpaper for wood depends on what you need to remove or smooth. Start with coarse paper only when you need to remove substantial material, move through progressively finer grits, and finish with fine paper appropriate for the coating or bare wood. For most general wood projects, a progression around 80, 120, and 180 grit is a practical starting point; delicate finishing work may require 220 grit or finer.
Quick recommendations by job
| Woodworking job | Useful starting grit | Typical finishing grit |
|---|---|---|
| Removing rough saw marks or heavy damage | 60–80 | 120–150 |
| Smoothing unfinished wood | 100–120 | 150–180 |
| Removing old paint or finish | 60–80 | 120–150 |
| Preparing a painted surface for recoating | 120–180 | 180–220 |
| Smoothing between clear-coat layers | 220–320 | 320 or finer, if specified by the finish manufacturer |
| Hand-sanding edges and small details | 120–180 | 220 or finer |
These ranges are starting points, not rigid rules. Begin with the least aggressive grit that can do the job. A coarse abrasive removes material quickly but can leave scratches that take additional sanding to remove.
Understand sandpaper grit
Grit describes the relative coarseness of the abrasive. Lower numbers are coarser and remove material faster. Higher numbers are finer and leave a smoother surface.
Coarse grit: 40–80
Coarse sandpaper is useful for:
- Removing thick paint, varnish, or damaged finish
- Leveling uneven boards
- Smoothing pronounced planer or saw marks
- Rounding over sharp edges quickly
Coarse paper can gouge softwood, flatten edges, and create deep scratches. Use light pressure and inspect the surface often, particularly on pine, cedar, and other soft woods.
Medium grit: 100–150
Medium grits are the general-purpose choice for smoothing raw wood after coarse sanding. They are also useful for preparing many painted surfaces and removing the scratches left by coarser paper.
For many projects, 120 grit is a good first choice when the wood is already reasonably smooth. If the surface only needs light cleanup, starting at 150 grit can reduce unnecessary material removal.
Fine grit: 180–220
Fine sandpaper smooths wood before many stains, paints, and clear finishes. It is also useful for final hand-sanding and removing light marks left by medium grit.
Be careful not to over-sand wood before staining. Very fine sanding can partially close the wood surface, which may reduce how evenly some stains absorb. Follow the stain or finish manufacturer's preparation guidance when available.
Very fine grit: 240 and higher
Very fine abrasives are commonly used for smoothing finishes rather than shaping bare wood. They can remove dust nibs, minor imperfections, and roughness between coats.
Use the finish manufacturer's instructions as the authority for between-coat sanding. Some coatings should be lightly scuffed, while others require a particular grit or should not be sanded at all during specific stages.
Choose the right abrasive type
Aluminum oxide
Aluminum oxide is a common general-purpose abrasive for wood. It works well on raw wood, painted surfaces, and many finishing tasks. It is usually the safest all-around choice when you need one versatile type of sandpaper.
Garnet
Garnet paper is traditionally used for hand-sanding wood. It can leave a clean surface and is well suited to finish preparation, but it may wear faster than some synthetic abrasives. It is a reasonable option when surface feel and control matter more than maximum sheet life.
Silicon carbide
Silicon carbide is a sharp, fine abrasive often used for wet sanding and smoothing coatings. It is more commonly associated with finishing work than aggressive wood removal. Only wet-sand when the coating and paper are designed for it, and keep moisture away from unfinished wood or moisture-sensitive materials.
Ceramic abrasive
Ceramic abrasives are designed for demanding material removal and may remain effective longer during heavy sanding. They can be useful for stripping finishes or leveling difficult surfaces, but they are often more aggressive than necessary for light hand-sanding. Use controlled pressure to avoid removing too much wood.
Pick a sandpaper format
Sheets
Full sheets or half sheets are versatile for hand-sanding. They can be folded around a sanding block, cut to size, or used with a hand sander that accepts sheets. Sheets are a practical choice for furniture, trim, doors, and small repair jobs.
Use a sanding block with sheets whenever possible. A block distributes pressure more evenly than bare fingers and helps prevent shallow dips in the wood.
Sanding discs
Discs are made for random orbital sanders and other compatible power sanders. Match the disc diameter, hole pattern, and attachment style to your sander. A disc that fits the diameter but has the wrong dust-hole pattern may collect dust poorly or fail to align correctly.
For power sanding, use light pressure and keep the tool moving. Holding the sander in one place can create swirl marks, uneven areas, or heat buildup.
Sanding belts
Belts are intended for belt sanders and remove material rapidly. They are useful for leveling broad surfaces but can damage wood quickly if held still or used with excessive pressure. They are usually unnecessary for small finishing projects.
Sanding sponges
Sanding sponges conform to profiles and are useful on edges, moldings, curved parts, and small areas. They are convenient for hand work but may not keep a perfectly flat surface as well as a rigid sanding block.
Use a sponge for contours and detail; use a block or flat sander when maintaining a flat plane is important.
Match sandpaper to the wood surface
Raw hardwood
Hardwoods generally tolerate a controlled progression from medium to fine grit. Start around 100 or 120 grit if the surface is already fairly smooth, then work through 150 and 180 grit as needed.
Inspect the surface under good lighting. Sanding marks can be easier to see after stain or finish is applied, when correcting them becomes more difficult.
Softwood
Softwood dents and scratches easily. Avoid unnecessary coarse grit, reduce pressure, and keep the abrasive moving. Finish sanding may require extra care around end grain, which can absorb stain differently from the surrounding wood.
Veneer
Veneer has a thin usable wood layer, so aggressive sanding can expose the substrate. Begin with a fine grit, use minimal pressure, and avoid powered sanding unless the veneer manufacturer or project instructions allow it. Hand-sanding with a block provides better control.
Painted or finished wood
For removing a finish, start with the least aggressive method that works. Chemical stripping, scraping, or heat may be more appropriate than sanding for thick coatings, but each method has safety and material-compatibility concerns.
For repainting, sanding usually only needs to dull the sheen and smooth loose or rough areas. You may not need to remove all of the existing paint. Check for lead paint precautions before disturbing older coatings, especially in homes built before current lead-safety practices.
A practical sanding sequence
- Inspect and clean the surface. Remove dirt, grease, loose coating, and fasteners that could tear the abrasive.
- Choose the least aggressive starting grit. Use coarse paper only when the surface requires substantial removal.
- Sand with the grain when hand-sanding. Cross-grain scratches are harder to remove.
- Remove dust between grits. Vacuum or wipe according to the finish manufacturer's directions; do not simply assume visible dust is gone.
- Move to the next grit gradually. Do not skip too many grit levels, or the finer paper may not remove the previous scratches efficiently.
- Check under angled light. Change direction slightly or mark the surface lightly with pencil so remaining scratches are easy to identify.
- Finish at the grit appropriate for the next coating. Stain, paint, and clear finishes can have different preparation requirements.
When to replace sandpaper
Replace paper when it is clogged, torn, glazed, or no longer cuts effectively. Continuing to press harder on worn paper can create heat and uneven sanding without improving the surface.
For paint, resin, and other materials that clog abrasive quickly, use paper designed for reduced loading when available. A clean abrasive generally produces more consistent results than a worn sheet, even if the worn sheet still appears intact.
Sanding safety
Wear eye protection and use dust collection where practical. Fine wood dust can irritate the eyes and lungs, so use appropriate respiratory protection and ventilation for the material and workspace. Extra caution is needed with old paint, treated wood, unknown coatings, and finishes that may contain hazardous substances.
Follow the sander, abrasive, coating, and finish manufacturer's instructions. Unplug a power sander before changing discs, sheets, or accessories, and do not wet-sand unless both the abrasive and the workpiece coating are suitable for that process.
Bottom line
For a versatile wood-sanding setup, choose aluminum oxide sheets in several grits, such as 80, 120, 150, 180, and 220, plus the correct discs if you use a random orbital sander. Use coarse grits for removal, medium grits for smoothing, and fine grits for final preparation or between-coat work. The safest choice is usually the least aggressive abrasive that accomplishes the job without damaging the wood.
