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Expert's Corner — warp

TIP: Finish Both Sides?

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A pervasive myth in the woodworking community is that you should finish both sides of wood, especially tabletops, to reduce the likelihood of warping. This myth has been carried to the extremes of finishing insides of chests-of-drawers, cabinets and drawers. Especially for the undersides of tabletops and the insides of drawers and cabinets, it’s often a good idea to apply a finish for looks, feel and ease of cleaning. But the finish does almost nothing to prevent warps. All your experience tells you this. For example, finishing undersides or insides of furniture made before the 1920s was very unusual. If...

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