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But I love my impact driver too much I can't imagine not using it for a project like this!
My plan was to use 100mm screws to attach the joists to the end beams and then joist hangers both ends. I'll switch to nails based on your recommendation however. Got a bag of 100mm galvanised nails left over from my shed*.
Any recommendation for attaching the posts to the joists? Was planning on so coach bolts and or big structural screws.
Hovis-
Lapped joints would give you more structural integrity above bolts alone, I'd have thought.
My decks going to be a lot smaller than yours (1m deep, 5m wide). I'm going to cheat and have composite joists laying directly on concrete blocks that I have spare. Saves having to do anything too engineeringy.
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One of these is much more satisfying to use than an impact driver
NotThamesWater
Bobbo
Please don't use screws for framing, especially something like a deck. Nails are a much more suitable fixing for holding a deck together (and just about all other timber framing) as they allow the frame to move slightly without causing damage they also have a much higher shear strength. A galvanised 4” nail will hold very nearly as well as a screw with the added bonus that you can probably buy 15kg of nails (should you want to) for the price of 100 appropriate screws.