The furniture frame should be constructed firmly with joints tightly fitted and glued, corner blocks where needed, and back panel firmly attached. The back panel should be finished for protection but need not be the same finish as the main piece.
Meanwhile, furniture should be safe to use. Test pieces for stability. Be especially alert to cantilevered shapes; tall, thin items; three-legged or pedestal-base tables and chairs; wall system pieces; drawer units in which top drawers might overturn the unit when opened; and furniture on casters.
At last, furniture finishes vary with construction materials and styles. Fine wood furniture and other natural materials often are finished to emphasize their natural beauty. These finishes may be only on the surface or they may penetrate. Because surface finishes stay on the surface of the wood, they easily can be scratched or damaged. Penetrating finishes are absorbed by the wood, durable (if properly applied) and relatively simple to repair if damaged. Finishes protect a surface from soiling and wear.
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