What's inside
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A leg vise and a face vise can both hold a wide board, but they support it differently. A leg vise grips near the bench leg and uses a long screw and a sliding guide to resist racking. A face vise mounts under the bench front and typically grips between two jaws, sometimes with a sliding or hinged mechanism to keep them parallel. For wide boards, the key question is not just jaw width: it is how far the workpiece sticks out and whether the vise can keep it steady without twisting.
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What “wide” means at the vise
Board width and board overhang are different problems. A 12-inch-wide board held on edge may fit between many vise jaws, but if it projects 30 inches beyond the bench end, it can sag or rotate. Conversely, a wide panel laid flat may need support across its length, not a bigger vise.
For edge work, measure the board’s thickness, the vise’s usable jaw opening, and the distance from the jaw to the far edge of the board. Leave clearance for clamps and hand tools. A 10-inch jaw opening does not mean a vise can safely support a 10-inch-wide board hanging unsupported from one side.
How each vise holds the work
A leg vise places one jaw against the bench leg, giving the assembly a stout vertical support. Many designs have a parallel guide that can be adjusted for different board thicknesses. The wide jaw and long screw make it useful for clamping a board on edge, including a broad board whose lower edge sits near the bench. A properly fitted leg vise can apply strong pressure without relying on a narrow mounting plate.
A face vise is generally quicker to operate for routine work and can be easier to install on a conventional bench. Its capacity depends on the jaw width, opening, and mechanism. A basic face vise can hold wide stock well when the board is centered and its jaws remain parallel; a non-parallel jaw may grip at one corner, dent the work, or let it slip. For wide boards, a vise with an adjustable front jaw or a well-designed parallel mechanism is more forgiving.
Leg vise vs. face vise
| Consideration | Leg vise | Face vise |
|---|---|---|
| Wide boards on edge | Strong support close to the bench leg; good for long edge-jointing strokes | Works well if the jaws stay parallel and the board is supported against sag |
| Setup and adjustment | Often needs guide adjustment for different thicknesses | Usually faster for repeated clamping; mechanism varies by design |
| Bench requirements | Benefits from a sturdy leg and space for the screw and guide | Needs a sound front apron or mounting area and adequate clearance below the top |
| Common failure | Guide set poorly, causing the jaw to bind or clamp crooked | Jaw racks or twists under an off-center load |
| Best fit | Heavy hand-planing and frequent edge work on substantial stock | General bench work and users who value simple, quick clamping |
Which should you choose?
Choose a leg vise if you regularly hand-plane long edges, work with thick hardwood, and have a bench leg robust enough to take the load. It is especially useful when the board is clamped vertically and the force from planing would otherwise twist a small vise. The trade-off is adjustment: set the guide to match the stock, and check that the jaw closes evenly before leaning into a cut.
Choose a face vise if you want a versatile everyday vise for smaller parts, occasional wide boards, and general assembly. A good face vise is not automatically inferior; for many home shops, it is the cheaper, simpler choice. If you mostly clamp boards a few feet long and use a support stand or bench dogs to control the overhang, a leg vise may add cost and fitting work without solving a problem you actually have.
Before buying, compare usable opening with your thickest stock, not just the advertised jaw width. Check how far the vise opens, whether its moving jaw can stay parallel, and whether the handle clears the bench leg, drawers, and stored tools. A woodworking leg vise is a sensible category to consider for frequent heavy edge work; a woodworking face vise is often the more economical general-purpose option.
Set up wide boards to prevent slipping
Clamp the board as close to its centerline as practical. If one edge sits far outside the jaws, the load can rotate the work and rack the vise. For a face vise, use a full-width jaw or add a flat wooden liner to spread pressure. Check jaw contact with a thin strip of paper: if it pulls free at one end while the other end is pinched, the jaws are not contacting evenly.
Support long stock with a roller stand, adjustable support, or a bench-mounted end support. Set it just high enough to carry the board without lifting it out of the jaws. A support that is even 1/8 inch too high can loosen the clamp; one that is too low leaves the vise carrying the entire overhang. For a board around 6 feet long, a support near the far end can make a noticeable difference during planing.
Use moderate pressure and add grip with clean, flat wooden jaw liners rather than cranking harder. Excess force can bow a thin board, crush softwood, or distort a vise jaw. If a board slips, stop and correct the contact or support; do not put a hand in the likely path of a plane, chisel, or falling workpiece.
Installation and upkeep
Mount either vise to a stiff bench structure. Screws driven only into a thin apron can loosen under repeated planing loads. Use the manufacturer’s specified fasteners, reinforce the mounting area if needed, and leave room for the mechanism to travel through its full opening. On a leg vise, keep the guide aligned and lubricate the screw as directed. On a face vise, check mounting bolts and jaw alignment after the first few sessions.
For wide panels handled flat, neither vise replaces a broad work surface and distributed clamping. Use bench dogs, holdfasts, or clamps along the panel’s edges. The vise should secure the work, not be asked to support a large panel cantilevered from one corner.