Post Spacing Thoughts

Hi Guys

Hoping someone can help me out.

I am planning to build a deck 6.0m wide along the side of my house and 4.5m deep. I have a few ideas on what needs to be done but need some help with post spacing to make sure I am not building a trampoline.

Beams will be made from 190 x 90 (2 x '190 x 45') Treated Pine
Joists will be made from 90 x 45 Treated Pine
(If these need changing then I am very open to suggestions)

I was planning to have a Ledger Board and two beams to cover the 4.5m depth. Is this sufficient?

Joists will be at 400 centers.

I need some help to know how many posts I need to support each 6m beam.

Any help is appreciated.

Aaron


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