Things You Will Need
- Putty knife
- Table saw
Split boards are easily repaired if you detect the splits before you incorporate them into a piece of furniture. If you notice the split in the wood after you build something, you may have a bigger problem.
To avoid the risk of splits, always cut off the last 2 or 3 inches from a piece of lumber before using it. This eliminates the many small cracks that often form at the end of a piece of wood, and prevents them from growing larger.
Fix a Split Without Cutting
- Repair a minor split in a piece of wood by working glue into the split with a flat, sharp implement, such as a putty knife. If the wood is warping and under outward pressure this method will probably not work; this pressure is probably what caused the split in the first place, and it is likely to cause the newly glued repair to split as well.
- Clamp the board together tightly so that the glue you have put into the joint squeezes out onto the surface.
- Leave the board clamped until the glue has dried completely.
Cut & Reglue
- Rip the board along the split and all the way down the board's length, using a table saw. If the split in the board runs diagonally, you will need to cut out the width of the board where the split is, using a table saw cut at the beginning and end of the split.
- Joint the surfaces of the cut using a jointer. Test-fit the two pieces of the board to be sure they fit together perfectly.
- Put glue on the two surfaces, put them together, and clamp them firmly.
- Leave the board in the clamps until the joint has dried completely.