The design of all other lap siding inherently demands that every time a panel ends, it must end at, and be fastened to, a stud or furring strip. This is because the fastener is the only thing holding the siding in place.
The name Trap-Loc® perfectly describes it’s uniquely patented design. As each panel is put in place, it simultaneously hides the fasteners of the panel above it and then, once it is fastened, is trapped at the top and locked at the bottom.
Each panel is so securely “Trap-Loc®’ed” that it doesn’t have to be nailed at each break… so breaks don’t have to be pre-planned to line up with a stud.