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How to Repair Wooden Furniture

How to Repair Doors

© Binding doors are often the result of faulty hinge operation. If the door binds at the top on the latch side (left), tighten the screws in the top hinge; if it binds at the bottom (center), tighten the screws in the bottom hinge. If the door binds at the hinge side (right), the hinge at the bind should be loosened or, if necessary, shimmed out with thin cardboard.

Doors on wooden furniture, opened and closed on a regular basis, are bound to incur some sort of damage. Left unattended, that damage can spread to the structure of the entire piece. Some repairs are simple, while others may require the replacement of an entire panel. We'll cover them all in this section.

Splits

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Split doors, panels, cabinet backs, and other flat parts should be repaired with glue. Very thin door panels and cabinet backs cannot be repaired, and should be replaced. Where appearance is not important, as on the back of a door that's always left closed, metal mending plates can be used for reinforcement.

Sagging or Binding Doors

Sagging doors are usually caused by faulty hinge operation; make sure the hinges are working properly. Binding doors can be caused by faulty hinges or by excess humidity. Swelling from humidity or moisture vapor is most common in spring and summer and is most likely to affect wood that hasn't been properly sealed. In fall and winter, when the humidity is lower, the wood will shrink again.

Before you work on the wood, adjust the hinges. If the door binds at the top on the latch side, the top hinge is probably loose; tighten the screws. If the door binds at the bottom on the latch side, the bottom hinge probably needs tightening. If the door binds on the hinge side, the hinges may be too tight or may be mortised too deeply into the wood. In this case, remove the affected hinge or hinges and add a shim of thin cardboard under each one. Then replace the hinges.

If hinge adjustment doesn't work, you'll have to remove some wood at the binding points. Be very careful in removing any wood; use sandpaper rather than a plane. To prevent future swelling, seal the raw edge with shellac when the weather -- and the wood -- is dry.

Replacing Door Panels

Many cabinets have flat door panels, either veneered or covered with cloth, cane, metal, or glass. Split panels should be replaced. If the covering of one panel is damaged, all panels should be recovered, if necessary, to match.

Door and drawer panels are usually held in place by molding strips nailed around the edges, sometimes surface-mounted and sometimes set into a rabbet-type joint. (The rabbet is a reinforced butt joint, with one or both joining members notched to fit together; it is usually reinforced with screws or nails.) These molding strips may be hard to see, but by carefully prying around the panel you'll be able to see how they're attached.

To replace or recover a panel, remove the molding using a butt chisel, a knife blade, or the tip of a screwdriver. Be careful not to damage either the molding or the wood. After removing the molding on all four sides, lift the damaged panel out of the frame. Some raised door panels are fastened with screws from the back of the door frame; these screws must be removed before the panel can be taken out. Raised panel doors may be in one piece; in this case, the panel cannot be removed. To repair this type of door, remove the door from its hinges.

On very old furniture, door panels often require special repair techniques. If the panels are held by moldings, remove the moldings very carefully. Try not to bend or damage the nails that hold the moldings; it's best to reuse these nails when you replace the moldings. If the panel is held in the frame in grooves (dadoes), the best way to remove it is to soften the adhesive around the panel with heat or moisture -- a hot towel is a good tool. Most old furniture was put together with animal or fish glue, and this adhesive can usually be softened. If this doesn't work, take the piece to a professional; the door will have to be taken completely apart or even cut apart and reassembled.

Panels set in square or rectangular frames are seldom really square. To cut a replacement for any panel, use the old panel as a pattern. Don't try to force a replacement panel in or you may break the frame. If necessary, cut the panel down to fit the frame.

Next we'll move onto drawers, which generally get dinged up over time.