How to Repair a Split Antique Drawer Bottom
A split drawer bottom is common in antique furniture because thin boards shrink and expand across the grain while being restrained by grooves, nails, glue or later repairs. A lasting repair begins by diagnosing movement rather than simply filling the gap.
Diagnose before dismantling
Remove the drawer carefully and unload it. Determine whether the bottom is split, separated at a joint, sagging, loose in its grooves or fractured around nails. Check whether the drawer is square and whether worn runners are forcing the bottom to carry loads it was never meant to support.
Look for:
- a solid board running front-to-back or side-to-side;
- several boards joined together;
- a bottom slid into grooves and nailed only at the rear;
- slips added along the drawer sides;
- plywood or hardboard from a later replacement;
- old glue, tape, battens or screws restraining movement.
Why splits develop
Wood moves mainly across its grain. A bottom glued rigidly on every edge cannot shrink safely and may split. Excessive weight, high humidity, damp walls, distorted drawer sides and failed rear fixings add stress.
Do not repair until the drawer has acclimatised to a stable indoor environment. Closing a seasonal gap when the timber is at its driest can cause buckling later.
Preserve original material
Original drawer bottoms preserve saw marks, inscriptions, paper remnants and construction evidence. Wholesale replacement should be the last option.
If a clean split closes without force and the board can move as intended, a compatible adhesive repair may be possible. Severely distorted, worm-weakened or previously contaminated timber needs specialist assessment.
Controlled repair method
- Photograph marks, labels and fixings.
- Remove only rear nails or slips necessary to release the bottom; do not dismantle sound dovetails.
- Clean loose dirt and failed adhesive mechanically without widening the split.
- Align the fibres dry before introducing glue.
- Use an adhesive compatible with the original construction—often hot or liquid hide glue where appropriate.
- Apply light, even pressure with protected cauls.
- Refit the bottom so seasonal movement remains possible.
- Replace only missing fixings with matching, correctly sized components.
A narrow missing strip may require a carefully fitted timber infill of matching species and grain. The patch should restore function without pretending to be original.
Repairs to avoid
- filling an active seasonal gap with hard resin;
- gluing the bottom into every groove;
- adding plywood over the original board;
- driving screws through drawer sides;
- sanding inscriptions away;
- soaking or steaming the whole bottom;
- forcing a bowed board flat in one session.
Runner and load checks
Repair worn runners and drawer-side bearing surfaces where necessary using minimal fitted timber. Do not plane away original drawer sides simply to make a distorted drawer slide. Reduce load after repair.
Finish and appearance
Drawer interiors were often left unfinished. Do not varnish, oil or scent the repaired bottom. Local colour matching may be unnecessary and can obscure the repair record.
When to use a conservator
Seek specialist help for important signed furniture, severe distortion, painted or paper-lined drawers, active mould, suspected toxic pesticide residue or extensive insect damage.
Sources
The method follows preventive and interventive principles from the [Canadian Conservation Institute](https://www.canada.ca/en/conservation-institute.html) and construction guidance in the V&A’s [How was it made? Furniture](https://www.vam.ac.uk/articles/furniture-how-was-it-made).