Build Sanding Grit Presets That Allow Exceptions

A sanding preset is a prepared starting plan for a recurring job: the abrasive products, support, entry condition, finish requirement, and checks that tell you when to move on. It should make setup faster while leaving room to stop when the next piece is different.

A drawer labeled “80 → 120 → 150 → 180 → 220” is inventory organization. It becomes a useful process only after you define which of those grades a particular job needs and why.

Give each preset a job name

Use a name such as “new solid-wood drawer sides, specified clear finish” rather than “wood sanding.” Record the species, initial machining condition, tool or hand block, and the exact finish product. A preset for an already smooth board should not automatically begin with 80 grit.

Prepare one representative sample. The coating manufacturer's instructions define the required preparation; the sample checks how the complete process looks on your actual material. Save the accepted sample or a clear record of it with the preset.

Build the card around decisions

The example is a card format, not a sanding specification. Fill in actual products and grades only after you have checked the job.

A manufacturer's sequence is product-specific

For its oil-based Gel Stain on raw wood, General Finishes specifies 120 grit followed by 150 grit. That is a concrete example of a finish schedule that does not require continuing through every finer grade in the drawer. It is not a rule for every stain, wood, or previously coated surface.

If that is the verified schedule for your project, the eQualle 120-grit 25-sheet pack and 150-grit 25-sheet pack are catalog options for hand-sanding trials. Record the 150-grit sheets in the preset only if the trial confirms that stopping grade. For a one-off sample, choose the smallest suitable available pack instead of buying a production quantity prematurely.

The separate 120-grit guide and 150-grit guide explain the roles of those grades. The finish instructions still decide whether they belong in this particular preset.

Write exceptions before they happen

A deeper scratch is not permission to grind the entire job through a longer sequence. Inspect the defect, decide whether it belongs within the sanding allowance, and test the correction. Veneer, narrow edges, and thin coatings may not tolerate the removal needed.

If the new stock is smoother than the original sample, test whether the first step is still necessary. If a different abrasive brand or backing cuts differently, do not assume the unchanged grit number preserves the old result. Revise the preset only after the new sample passes.

Keep setup simple at the bench

Store the approved abrasives in clearly labeled sleeves. Add the job card and its revision date, and separate used pieces from fresh stock. For a batch, lay out only the products needed for the next operation so an optional finer grade does not become an accidental extra step.

Do not turn the preset into a timer-only instruction. Sanding for a fixed duration may be useful as a starting observation, but the surface condition determines whether the step is complete.

Compare pack options in the 150-grit collection; choose the quantity after confirming the grade for your task.

Grit progression in a wet-sanding example

When should a preset be retired?

Retire or revise it when the finish system changes, the original material is no longer available, or repeat work stops matching the accepted sample. Keep the old version as history, but make the current version unmistakable. A preset earns its place by reproducing an accepted result, not by remaining unchanged.