Hi all - doing an order for timber for a suspended decking frame I'm doing for myself, and haven't got a huge amount of height to work with so planned to use 2x4's (47x100mm). The merchants have got treated c24 lengths. To check this was strong enough I've used this c24 calculator which gives max spans to BS 5268-7.1.
Do these max spans cover any risk of breaking, or just movement. For example if I don't exceed these am I ruling out failure but the deck could bounce around a bit, or is it safe to assume it won't move?
I've also had a go at working out the loads but feel I need a degree for that; if anyone can point me to a tool or easy formula for this that would be great. I'm using composite decking.
Do these max spans cover any risk of breaking, or just movement. For example if I don't exceed these am I ruling out failure but the deck could bounce around a bit, or is it safe to assume it won't move?
I've also had a go at working out the loads but feel I need a degree for that; if anyone can point me to a tool or easy formula for this that would be great. I'm using composite decking.
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