How to Choose 5 Inch Sanding Pad: the Right Grit

The short answer on a 5 inch sanding pad

The rule that governs nearly every 5 Inch Sanding Pad decision: start two grit steps coarser than the finish you want, and work down one step at a time. If the finish you are after is a P1000 line, you build it with P400 before it and P320 before that. A P1000 5 Inch Sanding Pad is the closing pass, not the opening one, and the grits that feed it are what leave the surface honest. The 5 inch sanding pad is the workhorse size for furniture, cabinet and repair benches, so the decision you make here is the one you make most often.

Here is what that looks like in practice, as a grit ladder for the band most shops actually run:

P80 🛠️ — heavy stock removal, shape correction, joint repair
P120 – P150 ⚙️ — flatten and level, remove the sanding lines from coarser work
P240 – P320 📏 — smooth out and prepare the surface for a finish
P400 ✅ — clean up, ready the surface for the fine pass
P600 – P800 🧊 — de-raise the wood and open the grain lightly
P1000 and finer ✨ — bring up a finish under clear coats or stain

The ladder is the heart of the 5-inch pad choice, because every step on it is a different pad face. Two scenarios where the rule bends: paint-filled repairs on painted metal, where you work back and forth between filling and sanding, and very soft woods where even P120 leaves deep lines, where you start finer and use less pressure. When you are unsure, the safe default is one more grit step than you planned. An extra 20 minutes of sanding costs far less than a finish failure.

Two habits make the whole thing repeatable: name the grit standard in every order, because FEPA P1000 and an old-scale 1000 are not always the same grain size (the reference is at the FEPA grit standard), and confirm the pad mounting against the sander you run, because a hook-and-loop ring has to match the sander pad it pulls onto. For the 5-inch options we ship, start from the 5-inch PSA sanding disc, keep the abrasives glossary open when a label term is new to you, and if the job is on the bench right now, the request a quotation form is where you confirm the stock against your grit. Everything below is the reasoning behind those two moves.

What makes a 5 inch pad work

A 5-inch pad is a circular coated abrasive on a paper web. The web is printed with the FEPA grit and the grain type. The pad then carries either a full hook-and-loop ring or a PSA web, which is the part that takes it onto the sander. On most random orbitals it is the hook-and-loop ring that pulls the pad onto the sander pad; on flat and spindle Sanders it is the PSA adhesive that does the job. The grit is what cuts; the web and the ring are what carry it.

The grain on the face decides most of the behaviour. Our sanding discs run from P60 to P5000, and on the 5-inch format the two grains that dominate the band above P80 are aluminium oxide and silicon carbide. Aluminium oxide is the forgiving all-rounder, the grain that still cuts even when you lean on it. Silicon carbide is harder, it glazes slower, and it is the grain you reach for on very fine grits, which is why the P1000 and finer pads often carry it. The material behind each grain is covered at the properties of silicon carbide and the properties of aluminium oxide.

The web, the ring and the bond decide how long the pad keeps that cut. A web that is too thin flexes and glazes. A ring that is not wide enough slips on the sander. A bond that is too hard leaves the grit standing up and biting when it should be cutting. The 5-inch sanding disc range lists which backings and grains we hold against each grit, so you can read the pad before you order it. A pad with the right web for the grit will hold its cut to the last pass; a pad on the wrong web glazes early and you end up stepping down a grit to make up for it.

Most shops keep a small set of 5-inch pads in service at once, one for each grit band they run, because a pad that has been sitting under a coarser grit does not reset itself when you move to a finer one. The 5-inch band we hold in stock covers the whole ladder from P80 up through P400 and the fine work above it, so a shop can run every step of the sequence on the same sander without changing the pad platform. The two mounting formats carry the whole ladder: the hook-and-loop ring for the random orbital and the PSA web for the flat and spindle tools, and the grit choice never depends on which one you run, only on the sequence you are building.

Perforated pad, holeless pad, and where each one fits

This is the backing decision most buyers get wrong, and it sits in one word: dust. Wood dust in particular builds up fast, and where that dust goes is the difference between a pad that keeps cutting and one that stops. The 5-inch pad comes in two face formats: one with a grid of holes that lifts dust off the face as the pad rotates, and one with a solid face that holds the dust until the extraction deals with it. The choice between the two is not about the sander and it is not about the grit. It is about where the dust goes.

Perforated pad for open shops and wood work 🪵 — the holes lift dust off the face as the pad rotates, so the cut stays open. It is the right pad where the sander runs dry, where dust is the main failure mode, and where you are on a 5-inch random orbital doing hardwood, MDF or softwood.
Holeless pad for tight finishes and painted surfaces ✅ — no holes, so no scratch marks show through into a top coat. It is the right pad where the finish is the last step and where dust control is handled by extraction, not by the pad itself.
Hook-and-loop version of either for sander swaps 🔄 — the perforated pattern and the holeless pattern both come with a ring, so the choice between them is not a sander choice at all.

One more pad type to know: mesh sanding discs, which are thin and cut across edges and curves that a paper web cannot reach. The 5-inch mesh version sits in the 5-inch mesh sanding discs line, and if your jobs include edge work the 6-inch sibling is at the 6-inch mesh sanding disc page. Where the two paper formats overlap in function is on the sander itself: a 5-inch pad with a hook-and-loop ring will mount on a random orbital, on a flat spindle sander, and on most palm Sanders that accept it, while a 6-inch PSA disc needs a 6-inch pad. The hook-and-loop sanding discs line carries both. The perforated 5-inch pad is also the one you reach for when you are sanding through a dust-heavy joint or a fresh cut, because the holes keep the face working; the solid-face 5-inch pad is the one you keep for the last two grits, where a clean face matters more than a fast cut.

The practical rule: perforated for open dust, holeless for tight finishes, mesh for edges. Most shops run perforated as the default and keep a few holeless pads on the bench for the last pass. The same logic sits behind the 6-inch side of the range too, where the 6-inch PSA format and the 6-inch mesh format take over for the larger sander, so the same grit choice carries across sizes without a new rule.

Choosing the grit by material and finish line

Grit is not a number. It is the size of the cut you are leaving, and the sequence of cuts that builds up to the one you want is what the grit choice actually is. A 5-inch pad is the right size for most furniture, cabinet and repair work, so the sequence below is the one a shop runs on that tool day to day. A few worked examples:

Hardwood tabletop, clear coat finish 🪵 — P120 to flatten, P240 to smooth, P320 to clean up, P1000 to de-raise before the coat. The P1000 pass is the one that leaves the surface ready to take the finish.
Softwood shelf, painted 🏠 — P120 to P240 is the whole job; a P1000 pad here adds time and leaves a line the paint hides anyway.
MDF and particleboard 🧱 — P80 to P120 to flatten, P240 to smooth, P400 before priming. These materials load a pad fast, so keep the sander moving and let a coarser grit do the real work.
Painted metal, automotive repair 🚗 — P320 to knock the panel even, P1000 to blend into the existing finish before body filler and top coat, as covered in the automotive repair sanding use notes.
Stainless and aluminium, light prep 🧊 — P120 to P240, stop before P400 unless the part is going to be painted. For more, the stainless steel finishing use notes walk through the sequence.

The rule underneath the list is the one from the opening: every grit step is finer than the one before it. Skip a step and the coarser scratches survive under the next coat and show through as a line. That is the single most common reason a surface looks sanded but not finished. The woodworking side of these jobs is covered in the woodworking sanding use notes, and the full set of grit and backing options is at the sanding disc range. Where two sequences meet, as when a cabinet run moves from the carcass grit to the drawer finish grit, the shop keeps two 5-inch pads on the sander at once, one for each band, so the change of grit is a change of pad instead of a scramble on the bench.

P1000 in detail: where the fine grit does and does not belong

Because P1000 comes up in so many enquiries, it is worth treating it on its own. P1000 is a fine grit, and its whole job is to de-raise a surface rather than remove stock. That means it is the pad you run after the heavier work is done, not the one you start with. Use P1000 to open up a surface that has micro scratches, to soften the marks left by P400, and to bring a part to a state where a clear coat or a fine film will sit evenly. A lot of the value in P1000 is that it keeps the whole surface in one band of texture instead of leaving deep scratches that the next coat has to fight.

The sequence into it, on the 5 inch sanding pad, is the standard one: P400 first, then P1000. On a hardwood surface you work P240, P320, P400 and then P1000; on a painted panel you work P320, P600, P800 and then P1000 before the top coat. The grits that feed P1000 are the ones that leave it honest, and a P1000 pad over a surface that still carries P400 scratches will show them through, so the step order is the point.

Where P1000 does not belong is as a first pass. If you start on P1000 over coarse scratches or heavy texture, you are asking a fine pad to do a coarse pad's job, and it will glaze and load instead of cutting. P1000 rewards a clean hand over it: light pressure, a moving pad, and enough of it that you are not chasing the last few millimetres of stock with a fine grit. The fine end of the range, including what P1000 pairs with, is visible in the sanding disc range, and the request a quotation page is where you confirm P1000 is stocked against your format and ring width.

A shop we work with keeps P1000 as the last grit on every furniture bench they run, and the first time we watched a young operator reach for it straight over a P120 scratch field, the fix was the same one every time: back up two steps and build the sequence again. The pad was fine; the sequence was not. That is the failure mode the grit ladder exists to prevent, and it is the reason the two opening habits, naming the standard and confirming the mount, sit in front of the whole sequence.

Grit standards: why P1000 and an old-scale 1000 are not the same number

The grit number is only meaningful when you name the scale, and that is where two suppliers quietly end up shipping two different pads. FEPA (ISO 848) numbers and the older ANSI numbers do not always line up, so a P1000 and an old-scale 1000 can be different grain sizes even though the label looks similar. When you buy 5-inch sanding pads from more than one source, state the scale in every enquiry and ask which one the stock is on; the reference is at the FEPA grit standard and the standards themselves sit at ISO standards.

The practical reason it matters is that a wrong scale gives you the wrong cut. If you think you are buying P1000 to de-raise and the supplier is quoting on a coarser old-scale number, you arrive at the bench with a grit that removes more than you planned, and the surface will show it under the coat. Two moves prevent it: always name the standard, FEPA or ISO 848, and keep your shop to one scale so the grits on the shelf are comparable. For a bulk or branded order, the scale is a field on the spec sheet, not a footnote, which is why it is one of the things the request a quotation form asks for.

The band around P1000 is where the difference bites hardest, because it is the band where a shop is most likely to mix a FEPA pad from one supplier with an old-scale pad from another and call them the same grit. The two most common pairs to keep apart are P600 against 600 and P1000 against 1000, and on a 5-inch pad the difference shows up as either a de-raise that is not fine enough or one that is fine enough that it eats into the coat. Name the scale, and the two pads stay on the same ladder. A shop that buys both a P400 and a P1000 pad from the same run, on the same scale, will always get the cut it is building, and that is the quiet advantage of one scale on the shelf.

Tool speed, sander fit, dust and safety in plain terms

Three things go into a pad working the way it is rated for: the tool speed, the pad fit, and what the dust does in the shop. The tool speed number is the one that protects the operator. A 5-inch pad on a random orbital sander is fine at most sander speeds because the pad rotates, but on a flat sander or a flap sander the surface speed is different and higher, so confirm the rated speed against the model and keep the tool below it. The portable power tool rules in the U.S. sit at OSHA 29 CFR 1910.244, and a plain reading of the setup and use side is at CCOHS: Abrasive Wheels, which covers the pad family as a whole.

PPE is the second line, and the general requirements sit at OSHA 29 CFR 1910.132 — PPE general requirements. Eye protection, a respirator that fits the dust load, and a sander with the guard where it belongs. The sander fit is the first line: a 5-inch pad ring on a sander pad that is not 5-inch will not seat, and a pad that does not seat walks on the face and cuts uneven. Confirm the sander pad diameter against the pad ring before the first pass, and confirm the tool speed against the pad's rated speed on the same pass.

The dust side is where most shops under-plan: a 5-inch pad throws fine wood dust that is easy to breathe and easy to track, and on some materials, particularly MDF with formaldehyde or silica, that dust is the long-term exposure. The dust topic is covered plainly at abrasive dust and airborne particulates. Three things that do most of the work: a dust extractor that actually runs at the work, a filter that suits the material, and a bin or store room that is not just a corner sweep. The same dust logic sits behind why the perforated format keeps cutting on a dry shop: the holes move the dust off the face so the grit keeps working, and the solid-face pad only works where the extraction is doing the job the holes would have done.

One failure mode that is specific to pads and not to flap discs: edge peel. A pad with a weak ring or a worn edge will start to lift at the rim before the grit on the face is worn out, and the rim is the first thing that shows it. If a pad starts lifting, swap it; do not lean harder on the good part of the face to make up for it. Edge peel is the pad equivalent of a flap disc walking, and both start at the fit. A sander guard that is the wrong size for the pad is the other half of the same problem: the guard stops a pad that fails from going further, and the wrong guard turns a bad event into a bad day.

Cost, life and lead time

On cost, the pad that is cheap per unit is not the pad that is cheap per finished part. A 5-inch pad with a good web and a solid bond lasts longer across the same job, and the cost-per-surface number is where the saving actually lands. The hook-and-loop system is the biggest lever here: the sander pad is reused, and you buy the disc separately, so a run of P120 pads on the sander is a different cost conversation from a run of P1000 pads on the same sander.

A worked example keeps the numbers honest. A shop runs a run of 200 hardwood panels, each needing P240 then P400, then P1000, all on the same 5-inch sander. Pad A on P240 lasts 40 panels, Pad A on P400 lasts 60, and Pad A on P1000 lasts 90. The P1000 pad costs more per unit, but it does 90 panels before it is spent, so the cost per finished panel at the final grit is lower than the two grits before it. The shop reads that as: the fine grit is not the expensive grit, the cheap grit that glazes early is the one that hurts the budget. That is the cost-per-part number a request a quotation conversation should be built around, and it is the number a bulk order should be priced on, not the sticker.

Two things set lead time. In stock grits and common formats ship fast; a private label run, a non-standard ring width, or a grain that is not on the default line takes longer. For OEM or private label work, add time for the label, the packing, and any spec sheet you want on the box. The OEM and private-label service page explains what we can put on the packaging and how minimum order quantities work. Two numbers we do not list as standard: the rated speed of a specific model and the exact lead time on a non-stock run. Both are confirmed against the order and the model, not assumed. The 5-inch PSA and 5-inch mesh formats are the two we hold deepest in stock, so a shop that runs a steady 5-inch sander will find the fast-ship grits on both, and the 5-inch mesh sanding discs page is where you confirm the edge-work format is in the same run.

Storage, transport and keeping the pad face clean

A 5-inch pad is cheap to replace, but a bad batch is not cheap to run. Two things decide whether the pad you bought is the pad that is cutting on the bench: how it was stored, and how it got to the bench. A pad face that has sat in a hot, damp store will glaze when it first goes to work, because the web takes moisture and the bond takes heat, and the grit that was set to cut is now set to pack. A ring that has been stretched over a shelf edge will not seat on the sander, and the pad will walk before the grit ever reaches the part.

Store the face clean and dry 🌬️ — dust that sits on the face before the first pass is the first thing the pad cuts into, and it loads the grit before the job starts.
Keep the ring un-stretched 📦 — a ring that has been stretched over an edge or a shelf will not seat on the sander, and the pad will walk on the face.
Move pads in transport as they will be stored 🚚 — the same stack that is flat in the store should be flat on the truck, and the ring should be facing the same direction.
Check the face on the first pass of the day 🔍 — a pad that has sat a season may have a face that is ready to cut or a face that is ready to glaze, and the first pass tells you which.

The transport side is where a bulk order shows its handling. A run of 5-inch pads that arrives with a face pressed against a box wall, or a ring bent from a stack, is a run that will not cut the way the shop expected, and the complaint will look like a grit problem when it is a handling one. The storage and transport rules above are the ones that keep the pad face honest from the factory to the bench, and they are the ones a private label run is worth the time for, because the label on the box is where a shop notes the storage and transport terms for the run. Confirm them against the order, and the pad that leaves the factory is the pad that cuts on the bench.

Common mistakes and how to fix them

The fixes are usually cheaper than the mistake. Here is what shows up most often on 5-inch pads, with the fix that actually moves the problem:

Skipping grits. Going from P240 straight to P1000 leaves P240 scratches under the P1000 line. Add the P400 step and the surface clears.
Glazing on a fine pad. A P1000 pad that you press into a surface stops cutting and starts to pack. Lighter pressure, a moving pad, and the cut comes back. A silicon carbide pad on a fine grit glazes slower, so it is the right grain when you are on the fine end.
Edge peel on a worn pad. A pad with a weak ring lifts at the rim before the face is done. Swap it; the face of the next pad is what keeps the surface even.
Holeless used where the dust is open. A solid-face pad holds dust on the face, and the dust chokes the grit. Move to the perforated format and the cut stays open.
Perforated used under a tight finish. The hole pattern leaves marks that show through a thin top coat. Move to a solid-face pad for the final pass.
Tool speed above the pad rating. A pad that is running hot and slipping is a speed problem, not a grit problem. Confirm the rated speed against the tool model and keep the tool below it.

For any of these, the woodworking sanding use notes walk through the sequence, the sanding disc range shows which backing and grit to reach for, and the abrasives glossary keeps the terms straight so you and your team are diagnosing the same problem. The thread through all six: a pad under cutting is almost always a match problem, not a bad pad. Fix the grit, the grain, the ring width or the speed, and the cut returns. The one that catches new operators is the last, because a sander that is too fast for the pad makes every other problem look like a grit problem, and the fix is a speed check, not a grit change.

FAQ

What grit do I start with on a 5-inch pad for a tabletop? In many cases P120 to flatten, then P240, then P320 or P400 before a finish. If the finish is a clear coat, add a P1000 pass to de-raise the surface before you apply it. Start coarse, work down, and keep the pad moving.

What is the difference between a Perforated Pad and a Holeless Pad? A Perforated Pad lifts dust off the face as it rotates, so it is the right pad where the shop is dry and dust is the failure mode. A Holeless Pad leaves no hole marks, so it is the right pad where the finish is the last step and dust is handled by extraction. Most shops run perforated as the default and keep a solid-face pad on the bench for the final pass.

What does P1000 do that P400 does not? P400 does the real cleanup and leaves a surface ready for a coat; P1000 de-raises and opens the grain lightly so a stain or a clear coat sits evenly. You run P400 first and P1000 on top, not the other way around.

Can a 5-inch hook-and-loop pad mount on a 6-inch sander? No. The ring and the pad are a size pair. A 5-inch pad ring on a 6-inch sander pad is a mismatch, not a fit. Where the two share the same tool, the ring width has to match the sander pad. Confirm the sander pad diameter against the pad ring before you order.

Which grain do I use on very fine grits? Silicon carbide is the grain that shows its value above P400, because it glazes slower than aluminium oxide on fine grits. The properties of silicon carbide cover why; on a 5-inch P1000 pad, it is the grain to look for when you are doing the de-raise pass.

How do I buy 5-inch sanding pads in bulk or with my own label? Send the grit, the grain, the format, the ring width, the quantity, and the standard you are buying to. The OEM and private-label service page walks through the fields, and the request a quotation form is where a bulk or branded order starts. Confirm minimum order and lead time against the run before you commit.

What standard do I name in an order? Name FEPA or ISO 848, plus the grit number and the grain. That keeps your order from being mixed with a different grit scale. The reference is at the FEPA grit standard.

What sander do I run a 5-inch sanding pad on? A random orbital, a flat spindle sander, or a palm sander that takes a hook-and-loop or PSA disc. Confirm the sander pad diameter matches the pad ring, and confirm the rated speed against the model before the first pass. The 5-inch PSA format is the one that takes a random orbital, and the 5-inch PSA sanding disc page lists the grits we hold on it.

Before you buy

A short compliance and purchasing checklist. This is a reminder, not a substitute for your own site rules, and in compliant use with the right protection the risk of these tools is reduced but not zero.

Confirm your tool maximum speed is below the pad printed maximum speed before every use, and keep the sander below it.
Check the sander pad diameter against the pad ring; a 5-inch pad ring on a 6-inch sander pad is a mismatch, not a fit.
Fit and keep the sander guard on at all times, and wear eye and face protection with a respirator that suits the dust load.
Confirm grit, grain, format, ring width, and the grit standard (FEPA or ISO 848) in every order so you do not mix scales.
Follow the pad maker install notes, and check the part and the pad for edge peel and heat on thin or soft material.
Confirm storage and transport keep the pad face clean and the ring un-stretched; a pad that has been sitting in a hot, damp store glazes when it first goes to work.
Keep a record of the PPE and controls you rely on; U.S. requirements are a useful baseline at OSHA PPE general requirements, and setup guidance is at CCOHS: Abrasive Wheels.
Confirm lead time, minimum order, and packing for any bulk or private label order, and start with the quotation form.

If you tell us the material, the finish you are aiming for, and the sander you run, we can help you pick the grit and the pad format to start from. Send the three and we will work the sequence with you on the request a quotation page.