A loose tongue has three advantages over using an integral one; it avoids decreasing the width of the boards; it gives the joint marginally greater strength; and a simple plough plane can be used to cut the grooves. Plane a groove down the centre of each board and insert a separate tongue made from plywood or solid timber (ideally cross-grained). Glue one groove and tap the tongue into it, then brush glue into the other groove and assemble the joint in cramps as described on page 26.
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Have you ever wanted to begin woodworking at home? Woodworking can be a fun, yet dangerous experience if not performed properly. In The Art of Woodworking Beginners Guide, we will show you how to choose everything from saws to hand tools and how to use them properly to avoid ending up in the ER.