Sandpaper - Grit Sizes

Grit sizes ranging 12 - 600.

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Grit Sizes	Description	Type of Work
12	Extra coarse	very rough work, high speed, heavy machines, unplanned woods, wood floors, rough cut, very fast removal of material
16	Extra coarse
20	Extra coarse
24	Extra coarse
30	Extra Coarse
36	Extra Coarse
40	Coarse	rough wood work, rapid removal of material
50	Coarse
60	Medium
80	Medium	general wood work, plaster patches, 1st smooth of old paint
100	Fine
120	Fine
150	Very Fine	hardwood preparation, final preparation of softwood, final preparation old paint
180	Very Fine
220	Very fine	final sanding, sanding between coats, sand marks not shown, dry sanding
240	Very fine
280	Very fine
320	Very fine	polish of final coats or top coats, sanding between coats, wet sanding
360	Very fine
400	Extra fine
500	Extra fine	sanding metal, sanding plastics, sanding ceramics, wet sanding
600	Extra fine
800	Super fine	Final sanding
1000	Super fine
1200	Super fine
1500	Ultra fine	Final sanding and polishing
2000	Ultra fine
2500	Ultra fine

Grit Size vs. Surface Roughness - Comparing sandpaper grit size and surface roughness.
Lumber - Surface Finishing - Lumber and surface finishing abbreviations.
Machine Processing vs. Tolerances - Machine processing and tolerance grades.
Manning's Roughness Coefficients - Manning's roughness coefficients for some common materials.
Surface Roughness vs. Mechanical Processing - Mechanical production methods and their surface roughness.
US Wood Screws - Pilot Holes - Hard wood and soft wood pilot holes, shank clearance holes and countersink diameters.
Wood - Densities of Various Species - Densities of various wood species - apple, ash, cedar, elm and more.
Wood Species - Moisture Content and Weight - Weight of green and air-dried fire wood.