Reinforced Mitre Joint

HAND CUT

Once you've glued up even a lightweight frame, you can drive a small pin or two into the side of the mitre joints to make sure they won't come apart. Larger mitre joints should he glued and allowed to set, then reinforced with veneer splines or a separate tongue of solid wood or plywood.

Glue And Pin Mitre Joint

Disguising a nailed joint

Sink the nail heads below the wood surface, then use matching wood filler to disguise the holes.

Reinforcing with veneer

Make perpendicular or angled saw cuts across the corner of a wide mitre joint; angled splines provide greater strength. Glue veneer or thin plywood splines into the saw cuts and, when set, trim them flush.

Mitre Joint

Flat-frame joint

Mitre Joint Photo

Reinforcing with veneer

Make perpendicular or angled saw cuts across the corner of a wide mitre joint; angled splines provide greater strength. Glue veneer or thin plywood splines into the saw cuts and, when set, trim them flush.

Flat-frame joint plywood tongue plywood tongue

Mitre Joint Plywood

1 Inserting a tongue

Insert a tongue in a larger mitred frame. To mark a slot for the tongue, set a mortise gauge to one-third the thickness of the wood, then scribe parallel lines, centred on the edges of each workpiece. Mark each end of the slot between the gauged lines, using a knife and try square.

Mitred Corner Joint

2 Fitting the tongue

Set the joint vertically in a vice and saw down the waste side of the lines. Using a chisel and working from each side towards the middle, chop out the waste wood. Glue a snugly fitting tongue in the slot, and trim flush when set.

2 Cutting corner-joint slots

Before making the cut, align the cutting guide (marked on the side of the fence) with the central point of each slot. Keeping the fence pressed against the edge of the wood, switch on and plunge the blade to cut the slot.

Router Mitre JointEdge Butt Joint

mitre joint t-butt joint edge-to-eoge joint corner butt joint

Reinforced Mitre Joint

-biscuit

Mitred corner joint

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Responses

  • sirpa m
    How to reinforce miter joints?
    7 years ago
  • Briffo Headstrong
    How to make miter biscuit join?
    5 years ago
  • cirilla
    How to cut miter joints by hand?
    5 years ago
  • URSULA
    How to reinforce mitered joints?
    5 years ago
  • niklas
    How to cut splines to reinforce box corners?
    4 years ago
  • Gundobad
    How to biscuit mitres?
    4 years ago
  • billy
    How cut plywood corner?
    4 years ago
  • vittoria
    How to cut a mitre wooden joint with mitre saw?
    1 year ago
  • KAITLIN KERR
    How to joints wood cabinet images?
    9 months ago
  • tom
    What furiniture is made out of Mitered Butt Joint?
    8 months ago

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