The shiplap is formed by overlapping rabbets cut into opposite faces of adjoining boards. I'd call it a car-penny kind of thing, used in siding and natural-wood paneling.
For example, in our shop here at Rodale. Fred cladded several walls with ship-lapped cedar. (The cedar is photogenic, and it's easy to hang things on—just drive a nail anywhere.) Rather than just butt the 1 by 12 boards edge to edge, he rabbeted the edges so each board could overlap its neighbor. Once in the warm, dry shop for a few weeks, the cedar dried further, and naturally it shrank pretty dramatically. The ship-laps prevented the real guts of the walls from being exposed.
And that's the whole point of shiplaps. The rabbets arc quickly cut—precision is irrelevant—yet they serve a valid purpose. A piloted rabbet bit and a router arc all you need to make them. l-ay the board across sawhorses and run the router along one edge, cutting the rabbet half the thickness (or a little more) of the stock. Roll the board onto its back and repeat.
The utility of the shiplap as a precision-Fitted joint? Noi much.
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There are a lot of things that either needs to be repaired, or put together when youre a homeowner. If youre a new homeowner, and have just gotten out of apartment style living, you might want to take this list with you to the hardware store. From remolding jobs to putting together furniture you can use these 5 power tools to get your stuff together. Dont forget too that youll need a few extra tools for other jobs around the house.