Hi, I am attaching the decking frame for the 3m x 5m "Picture framed" deck. Facts: - Construction is low, 20cm high and the posts will be dug 50cm into the ground - Joists 145mm x 47mm (3m length) - Posts 100mm x 100mm - Boards: Yellow Balau 21mm x 145mm 5m (length) The upper side of the frame will be attached to the house with just 2 posts in the corners to make it easier on the corners. The joists will be attached to the 5m longboards with the Simpsons Joist Hangers and the 5m deck boards will lay horizontally left to right. I was trying to make add a post every 1.5m (that's why they are all in the middle) with some noggins to secure the joist from twisting. Noggins will be screwed at 45 angle to the joists using the wood screws and the joists will be attached using the coach bolts to the posts. Would the attached frame be ok or should I make it more robust (and expensive)?