shiplap boards definition
Shiplap is a type of wooden board used commonly in the construction of barns, sheds, outbuildings and inexpensive or seasonal homes.It is either rough-sawn 1 or milled 3/4 pine or similarly inexpensive wood between 3 and 10 wide with a 3/8 - 1/2 rabbet on opposite sides of each end.The rabbet allows the boards to overlap in this area.ough-sawn shiplap is attached vertically in post and beam construction, usually with 6d-8d common nails, while milled versions, providing a tighter seal, are more commonly placed horizontally, more suited to two-by-four frame construction.