How do I fix a wobbly table?

A wobbly table is usually a loose joint or a loose fastener, and both are repairable at home. Start by finding out whether the table or the floor is moving, then tighten the hardware, then re-glue any joint that still shifts.

Is it the table or the floor?

Slide the table to another spot or room and rock it again. If the wobble follows the table, the problem is in the table. If it only rocks in one place, the floor is uneven and a felt pad or an adjustable foot under one leg will settle it.

Why tables loosen

Most tables are put together with glued joints and a few screws, and wood does not stay the same size. Rungs and stretchers may become loose in chair legs because of the differential in shrinkage along and across the grain.^[1] The same applies to table legs and aprons. When the air changes between damp summers and dry heated winters, a joint that was tight can open a hair. Seasonal variations in relative humidity may be responsible for the deterioration.^[1]

The reverse can happen too. Because furniture is often made from various members that are connected across grain and are restrained from natural expansion and contraction by glue and nails or screws, the stress can become strong enough to cause the wood to split.^[1] The Forest Products Laboratory makes the matching point from the maker's side: installing wood at the moisture content it will see in service avoids problems such as floor buckling or cracks in furniture.^[3]

Tighten, then find the joint

Go around the table with the right screwdriver or wrench and snug up every leg bolt, corner bracket and fastener. Firm is enough. Overtightening strips the hole and can split the wood.

If the wobble remains, press and twist each leg while watching where it meets the apron or top. A joint that is loose shows a hairline gap, clicks under load, or has fine dust and flakes of old glue beside it.

Re-gluing a loose joint

If the leg or rail moves freely, tap it apart gently. If it is still firmly glued, leave it alone and treat only the joint that moves, because forcing a sound joint apart can break it.

Scrape the old glue off both faces down to bare wood. The adhesive industry typically recommends 60–80-grit sanding as acceptable for wood bonding, and anything above 200 grit fuzzes the wood surface and is not recommended.^[2] Sanding dust must be removed completely from the surface.^[2]

Do not sand a tenon down so it fits loosely, and do not pack a joint with so much glue that it floods. In a mortise-and-tenon joint, the tenon should be slightly smaller than the mortise to prevent the mortise from splitting,^[1] so the fix is clean surfaces and good contact, not a tight hammered fit.

Dry-fit the parts to check they seat, then spread wood glue evenly on both surfaces. The adhesive must be fluid enough to enter the void spaces in the wood but not so fluid that most of the adhesive is squeezed out of the bondline, causing a starved joint.^[2] Clamp the joint closed. The strongest joints are made with moderately high clamping pressure,^[2] so use clamps or a strap clamp instead of hand pressure, check the leg is square to the top, and wipe off the squeeze-out.

Leave the clamps on for the time the glue label gives, and go easy on the table afterwards, since adhesives typically need hours or weeks to completely cure.^[2]

If it still rocks

Put the table back where it lives and test again. If one leg is a touch short, use its levelling glide or a felt pad. If the whole base is twisted or the top has cupped, that is a job for a repairer.

Stop and call a pro if

• A leg, tenon or apron is cracked or snapped. Gluing a split part without repairing the break usually fails again, and it takes the right wood and technique.
• The table is an antique or an heirloom. Poorly done repairs are another common cause of damage to wooden objects, and glue may leave misaligned surfaces and residue.^[1] A restorer can use repairs that can be undone later.
• You see small round exit holes or fine powder under the table. Beetles do the most damage to furniture and wooden objects,^[1] and a table with active infestation needs treatment, not just glue.
• You plan to strip the finish on an old piece. The EPA lists refinishing old furniture among the jobs that can put you in contact with lead.^[4] Ask a pro before you sand or strip a painted piece.
• The top is splitting, cupping or the veneer is lifting. That is wood movement across the whole surface, not a wobble.

Getting help in Virginia

If the repair is beyond a glue joint, read how much table repair costs in Virginia and whether an old dining table is worth repairing, browse table repair requests, or see more furniture repair answers.

When you are ready, describe the repair once and local furniture repairers can quote it.