So I'm going to be putting decking into the garden, attached to the house with a ledger board. 4x4 Posts concreted in, all softwood. I have a good handle on how everything will go in, I'm just not so clear on what joist size to use, how far apart to space the joists, and how many posts I will need.
I've googled and seen loads of tables, but a lot of what I read is designed for post and beam which I'd love to do but can't what with keeping things below 30cm height.
I had marked things out a few months ago as 3250mm (away from the house) x 5400mm (parallel to the house), but I think I'll go smaller than that now.
Ideally someone could tell me something like use 7x2 joists, spaced 1m apart, posts every 1.2m in the direction the boards will run (parallel to house) and 1.2m in the opposite direction to the boards. I suppose that would make it 1.2m joist span, is that right?
I've googled and seen loads of tables, but a lot of what I read is designed for post and beam which I'd love to do but can't what with keeping things below 30cm height.
I had marked things out a few months ago as 3250mm (away from the house) x 5400mm (parallel to the house), but I think I'll go smaller than that now.
Ideally someone could tell me something like use 7x2 joists, spaced 1m apart, posts every 1.2m in the direction the boards will run (parallel to house) and 1.2m in the opposite direction to the boards. I suppose that would make it 1.2m joist span, is that right?