Tongue & Groove 3/4" - 78

This 3/4" - 78 channel/gap siding measures .750" in thickness; the width can be machined to any desired size within the parameters of the moulder/shaper utilized to mill the pattern. The functional profile is deliberately designed for blind nailing installation; it is comprised of a 1/4" tall by 19/32" wide offset groove and a 1/4" tall by 9/16" offset tongue with .006" void in the joint for assuring a snug fit when assembled. When two pieces of milled lumber are joined together they create a 1/4" wide by 5/16" deep gap between the merged boards. We offer a few other blind nailing designs with different sized channels for you review and consideration, t & g .750" - 16 with a 1/8" channel, t & g .750" - 42 with a 5/16" gap and t & g .750" - 49 with a 3/8" channel.