I'm screwing down a deck of 5/4 x 4" cedar, over joists 16" O.C.
It's a covered deck, so it won't get very wet.
Is 1 screw per joist/plank intersection enough? Or 2?
Decking fastening schedule
deckingfasteningscrews
Related Topic
- Do I need to screw down both sides of a composite deck board at each joist
- Specs for reinstalling 10+ year old composite decking
- Do I get away with the wrong screws and holes on a deck if the paint will cover both
- Drywall – Screws breaking through drywall paper
- Flooring – Plywood subfloor won’t screw down in a trailer home
- Wood – How to fasten wet dog-ear pine pickets
- How to repair decking where the screws have broken
Best Answer
It would be best to use two. If you make sure your deck boards are cupped down you would think that only one screw would be fine, to stop the board from cupping up in the center. I have seen wood cup in some extremely odd ways so this is not always the case. Two per board/joist intersection will ensure you do not need to mess with it in the future. Or you can always just use one and wait for the weird boards to cup :) I prefer low maintenance and the screws shouldn't be too pricey. Good luck!