Join Vic Tesolin as he walks us through what a C-Channel is and how to install them.
This simple bit of metal hardware is a great way to help keep wide surfaces flat over the years. The secret behind this hardware’s success are the rolled corners. These corners, combined with the thickness of the steel, provide ample strength to help hold things flat. Elongated holes along the length allow the hardware to be secured to the wood while still allowing for the all-important movement that is going to occur.
Installation of the C-channel is simple. It involves routing two parallel dados across the width of the underside of the tabletop. You will need a minimum of two C-channels and perhaps more depending on the length of your piece. These dados should be about 25mm longer than the length of the hardware, again to allow for the wood to move. The C-channel should be secured by installing threaded inserts and machine-thread screws or bolts. The Rampa 1/4-20 inserts are a great choice because of their strength and ease of installation.
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