Luiz

Hi all, I’m rebuilding an L-shaped deck and would really appreciate some experienced input on the best structural layout and fall direction before I commit. Key details: • The deck wraps around the corner of the house (L-shape). • Approx sizes: • Section A: ~150 cm deep (from house) × ~380 cm long • Section B: ~370 cm × ~454 cm • The deck is enclosed by walls on all sides (house walls + boundary walls) • Height is ~300 mm above ground. • I’m rebuilding the entire substructure (posts, beams, joists), so layout can be changed. • Sub-soil is soft. What I’m unsure about: 1. Board direction • Should boards run in the same direction across the whole deck, or is it better to change direction between the two legs of the L (e.g. parallel to the house on the larger section and perpendicular on the narrower one, with picture framing)? 2. Fall / drainage • Given the deck is enclosed by walls on multiple sides, what is the correct fall strategy? • Is it better to: • fall toward one outer/open edge only? • fall diagonally? • accept two planes with a subtle transition? 3. Substructure approach • Best practice for posts on soft ground (concrete pads vs posts in concrete vs adjustable supports). • Typical post spacing and beam layout for a deck of this size. My priority is: • a buildable, professional solution • no twisted or planed joists • boards sitting fully flat on joists • avoiding water being trapped against walls I’m less concerned about “perfect symmetry” and more about what experienced deck builders would actually do in this situation. I have attached a drawing of what's currently in place...please ignore the drainage strip as it is doesn't actually exist. Thanks in advance — any advice appreciated.