17 Router Tips Flattening Wide Boards A huge, wide board makes a stunning tabletop. If it won‘t fit through your planer, flattening that board can be a lot of hard work. You could use a belt sander, but it’s much easier to use your router. To get started, you’ll need a large, flat surface, such as a big workbench or a hollow-core door. Lay the board on the bench and …

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