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Hi,I am a day or two away from starting to screw on 90mm x 22mm treated pine decking from Bunnings on 45mm wide TP joists and I have some questions that googling hasn't helped with. The deck will not be covered and it will be painted.
- What's the ideal gap between boards? 5mm?
- What size screws should I use?
- Do I need to pre-drill anything, or should I just drive the screws straight through the boards into the joists.?
- Will screws countersink themselves, or do I need some kind of tool to do it?
- How far from the edges of the boards should the screws be driven in?
Any help appreciated.