So rather a self-explanatory issue.

The building walls are at a height that isn’t conducive to use a full sheet of 4x8 LP smart sheet (series 38) so I have to cut it down, but the offcuts are a good amount so I didn’t want to waste it, especially since this is DIY and budget is everything.

Anyway, if I say use the offcuts to create a full sheet (once it’s on the wall) what can be done about the horizontal seam that isn’t in any sort of stud? It just feels wrong, but it’ll be a real bummer to waste such pieces. Hope the question makes sense.

  • 2
    Can always add extra studs or blocking(horizontal pieces between studs) if needed for a mounting surface.
    – crip659
    Feb 19, 2023 at 21:31
  • Is this the only exterior covering going over the studs, or is there plywood/OSB over the studs then this siding covering the sheathing?
    – FreeMan
    Feb 20, 2023 at 13:19

1 Answer 1


I would go stronger than @crip659.

If you want to use all the off-cuts, you should install horizontal pieces between studs (called dwangs in New Zealand). You need to support the joins otherwise they will separate when someone leans, pushes, or falls against them.

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