I have attached a picture of the sub-frame layout for my deck which is about 6mx3.6m. I have one ledger fixed to the house and at the other end is a retaining wall made of dry-stacked Tasman concrete blocks. I am planning to fix a ledger on this retaining wall at the opposite end to support the ends of the joists. The 3 bearers do take up most of the load and added to this is a concrete slab just outside the outside as you walk out and on to the deck. My question is, are there any concerns with fixing a ledger to the retaining wall ? Would question of soil movment play any part on the deck ?
The deck is just about 200mm over the ground.
Thanks as always for the invaluable advice I get on this forum.