How do I repair furniture that has been chewed on by a dog?
Replace LegsCut loose wood with a handheld saw if the wood table or chair legs are chewed through and can no longer support the furniture. Remove old glue from the joint by sanding it away with 320-grit sandpaper. Attach new legs into the joint with wood glue. Apply wood glue to the joint, insert the new leg and put a clamp in place. Let the glue dry.
Repair LegsUse epoxy putty made for furniture to repair mildly damaged legs that still support the furniture. Knead epoxy until it is warm and apply it to the chew marks. Remove the excess with a putty knife and let dry. Sand over the epoxy and any light chew marks with 320-grit sandpaper to even out the grain and smooth the surface once repairs have been made. Stain or varnish the wood in the color of your choice to seal wood furniture and protect the surface. Let dry.
Fabric FixesReupholster ripped fabric. Use a patch-repair kit to repair and restore chewed material on leather or vinyl furniture.
Source:Bob Vila: Repairing Furniture
More Information:Dog Obedience Advice