I currently have a sloping lawn and want to build a retaining wall that is an 'L' shape roughly 3m x 9m to level it out and then put a gravel patio in its place..
I was thinking of using new railway sleepers, Oak ones seem to be the better choice, looking around and i can get them in 1.2m or 2.4m lengths, 100mm x 200mm. how much do these things weigh? as access is a bit limited so they will have to be man handled into place.
I was thinking of laying them on a type 1 base and back filling behind them with round gravel to help drainage so they don't rot out.
The ground also slopes the other way so i will need the wall to be 600mm high on one side and 400mm on the other so was planning to lay the sleepers on their side? is that a done thing?
What is my best way to join them together? So far ive seen stakes that hammer in the ground behind them and then screw to the back. spreader plates along the back, steel channel posts, rebar and drilling holes in the sleepers.
The rebar out the ground sounds the better option, as it will still hold when everything gets a bit rotted.
the whole garden is getting landscaped, so im open to any other suggestions, the plan is grey porcelain patio, white gravel where the lawn was, sleeper step up to more gravel that will be a darker colour, probably slate chippings or whatever works out cheap.
sorry for my rambling, has anyone got some good insight into what's best, cost effective, less labour intensive to build a small retainer wall.