Friend of mine wants me to reinforce an existing deck so he can install a hot tub on it. The tub is 7’x7’, weight with water is 4500lbs.

Existing deck is 8’x14’ with 2x8 joists @16” OC (I think, haven’t seen it in person). Joists are in hangers. Ledger against the wall, and a 2x8 end joist bolted to 4x6 posts (three of them across the front). The tub will sit on one side of the deck.

I’m planning to add extra joists to make 8” spacing, then install two 4x6 beams, one @ 2’ out from the ledger and one @ 2’ in from the edge. Beams will be supported by 4x4 posts (two per beam) and pre-cast concrete footers directly on undisturbed soil.

Does this sound like it could work?