How to Repair a Drop-Leaf Table Support

A drop leaf is safe only when its support carries load vertically and locks into the intended position. Sagging may result from loose joints, worn pivots, distorted leaves or altered hinges.

Diagnose before repair

Identify the support system: swing leg, gate, hinged bracket, sliding lopers or rotating bearer. Check leaf hinges and top movement as part of the same system.

• Inspect pivot joints and wear.
• Check support contact beneath the leaf.
• Look for replaced hinges and screw holes.
• Assess underframe square and leg length.
• Compare opposite supports where present.

Record component orientation, hardware and earlier repairs. Do not add adhesive until the load path and movement are understood.

Conservation-minded method

Repair loose joints and worn pivots with minimal fitted timber, align the underframe and restore the original bearing surface. Replace only missing supports from documentary or mirrored evidence.

Retain all serviceable original material. Dry-fit and rehearse clamping, protect finished surfaces and allow complete cure before testing.

Avoid

• Adding an unrelated folding bracket.
• Packing the leaf without fixing loose joints.
• Over-tightening pivots.
• Restraining top movement.
• Loading the leaf before testing.

Final checks

Open and support the leaf gently, then test with increasing load. Keep hinge screws and joints under review.

Sources

The approach follows [V&A furniture-construction guidance](https://www.vam.ac.uk/articles/furniture-how-was-it-made) and [Canadian Conservation Institute](https://www.canada.ca/en/conservation-institute.html) principles.