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What a Plane Stop Does
A plane stop is a fixed block that holds a board against the bench while you push a hand plane along its length. It gives the stock something to bear against, so the board is less likely to slide forward or skew under the plane’s cutting force.
The stop is not a clamp. It should resist forward movement while allowing you to lift the workpiece off the bench, turn it around, or shift it sideways. That makes it especially useful when flattening wide boards, jointing an edge, or bringing several pieces to the same thickness.
A stop works best when the plane’s cutting direction drives the board into it. If you plane toward the stop, the board is supported. If you plane away from it, the board can pull loose or ride over the stop. This simple detail prevents many frustrating slips.
Choosing the Right Type of Stop
There are three practical options: a bench dog, a removable wooden stop, and a commercial plane stop or toothed stop. Your choice depends on the bench, the size of the work, and whether you need the stop to sit flush when not in use.
| Stop type | Best use | Advantages | Limitations |
|---|---|---|---|
| Bench dog | Regular planing on a dog-hole bench | Quick to reposition; can be flush or low-profile | Needs accurately placed dog holes; a tall dog can damage thin stock |
| Removable wood stop | Simple workbench or temporary setup | Cheap, easy to make, and gentle on edges | Needs screws, clamps, or a batten to hold it in place |
| Commercial toothed stop | Short, rough stock and repeat work | Grips well and adjusts quickly | Can mark the underside; costs more than a scrap-wood stop |
For most occasional hand-planing, a scrap hardwood block is enough. A block around 20 to 30 mm thick and 40 to 75 mm high gives a useful bearing face without obstructing the plane. Fix it near the front edge of the bench with two screws, or clamp it to a stout bench batten.
If you are buying a bench dog, look at bench dogs for a workbench with a diameter that matches your dog holes. Common holes are 19 mm (3/4 inch) and 20 mm, but they are not interchangeable in every bench. A dog that fits loosely can tilt under load; one that is too tight may split the hole or jam when the bench moves with humidity.
Setting Up the Stop
Place the stop so its bearing face is square to the board’s travel. For edge jointing, the stop usually runs across the bench and contacts the end grain of the board. For face planing, it can be positioned at the far end, with the board’s long edge aligned with the bench.
The stop should be slightly lower than the top of the workpiece when possible. A stop that projects 3 to 6 mm above the stock is usually enough. If it rises much higher, the plane’s side or iron may catch it during a stroke. If the stop is below the board, the board can climb over it.
Keep the stop close enough to the board’s end that the work does not flex. On a 600 mm board, a stop 20 to 40 mm from the end is sensible. On narrow stock, put the stop where the board has solid support underneath. A board hanging over the front edge of the bench will lever upward instead of pushing cleanly into the stop.
Check the stop before cutting. It must not move when you push firmly against it by hand. A screw-mounted stop should have two fixing points so it cannot pivot. A clamped stop needs a clamp with enough throat depth and pressure to resist sideways movement, not just downward pressure.
Planing Into the Stop
Set the plane for a light cut first. For general flattening, an iron projection of roughly 0.1 to 0.2 mm is a useful starting range. A heavier cut increases the force on the stop and makes tear-out more likely, especially in reversing grain.
Put the board against the stop and take a test stroke without cutting aggressively. Hold the plane with both hands, keep the sole flat, and push in the direction that drives the board into the stop. Use a steady stroke rather than a series of short, stabbing pushes.
On the first few passes, concentrate on finding the high areas. A pencil grid across the face makes this visible. Continue until the pencil marks disappear from the high spots, then check the surface with a straightedge. A 600 mm or 900 mm straightedge is useful for ordinary boards; check along the length, across the width, and diagonally.
For edge jointing, place your front hand over the plane’s toe and your rear hand on the tote. Start with pressure toward the front of the plane, then transfer pressure toward the rear as the plane reaches the end of the stroke. This avoids rounding the ends. The stop prevents forward movement, but it does not correct poor pressure control.
Preventing Slips, Skewing, and Damage
The most common failure is planing in the wrong direction. If the board moves away from the stop, turn the work around or move the stop to the opposite end. Do not rely on a hand or a loose clamp to catch a sliding board.
Skewing happens when the plane is angled across the board or when one corner receives more pressure. A slight skew can be useful because it reduces the effective cutting angle, but excessive skew pushes the stock sideways. If the board drifts, add a second low guide block along one long edge or use a bench dog arrangement that controls both directions.
Protect finished surfaces with a thin sacrificial strip between the work and a toothed stop. For valuable or soft timber, choose a smooth wooden stop instead. Toothed stops are useful on rough stock, but their teeth can leave dents that are difficult to remove after the final thickness is reached.
Do not let the plane’s iron or side strike a metal dog. Retract the iron before moving the plane near any hardware, and keep the stop below the plane’s travel path. If you need a compact setup, low-profile 19 mm bench dogs reduce this risk.
When a Stop Is Not Enough
A plane stop is a poor substitute for holding power when the board is bowed, twisted, very narrow, or unusually heavy. If the board rocks, add packing beneath the low corners or use a planing wedge. If it still shifts, use a clamp, holdfast, or dedicated face-planing jig.
For thin stock below about 10 mm, a tall stop can tip the board or damage its end. Use a low stop and a side guide, or clamp the piece in a shooting board or carrier. For short pieces, make sure at least two-thirds of the board rests on the bench; otherwise the plane can push the work over the edge.
A simple wooden stop remains the best low-cost choice for many benches. If you want faster adjustment and already have a dog-hole bench, an adjustable workbench plane stop is worth considering. Buy the more elaborate hardware only when you will reposition it often or need repeatable support for several board sizes.