I'm planning a relatively small raised deck: 3.6m wide x 1.2m and would like advice on subframe structure. Deck height roughly 600mm Green beams are all same wood, I'm undecided on spec (c16 vs c24 and 145mmvs 195mm) Grey beam is something i am debating but unsure if it adds value The solid green beam will be the ledger bolted to house Blue squares are 100mm support posts concreted into the floor Noggins ommitted from plan but 2 staggered rows will be added Have I overlooked anything crucial, any tips on improvement?
Can't understand the point of grey beam, 4x2 would be ok for that span, noggins not needed but one central row to keep everything straight may benefit.
From memory, apparently so if it's higher than a foot from the highest point of the ground the deck covers, I think.