Help with 10x50 deck

[sturner12]

This deck will extend 10' deep from house and 50' wide and will be freestanding. I want the decking to run perpendicular to the house so of course my joists will be parallel. I will have 6 built up beams running perpendicular made of 2x10x10 and these beams will rest on top of support posts attached to concrete piers. I can't decide whether to put the floor joists on top of them beams as a drop beam or whether to hang them from the sides of beam flush. The beams will be bolted together with 1/2" hot dipped galvanized carriage bolts. If I put them on top I will use hurricane ties and if flush I of course will use joist hangers. I wanted to set my support posts in 1' from each edge but if I do this, it will give me a 1 ft joist on each end if I choose to go off side of beams. Is this ok? Also, without a ledger board I'm not sure how to start framing with such a long deck. I built a deck 15 years ago but it wasn't cantilevered so everything was different. Any guidance, tips or advice is appreciated.

 

[ree]

Hi sturner12,

Your post is a bit too complicated for a UK DIY site, external decks as you know them are rare in the UK.


FWIW: You must start with a ledger for an attached deck - which your deck surely is.
My experience also says you must have a drawing to work to.
The bolting thro and waterproofing of the ledger, and the beam/joist attachment to the posts are probably the most important aspects of deck building.
Cantilevered "balconies" are still with us but cantilevered decks are virtually banned by many Codes.