It’s easy to close the back door and pretend that the jumble of recycling bins and garbage cans outside doesn’t exist ― but that only works when you’re in the house.
Building a short lean-to just big enough to hold everything solves the problem.
The key to this design is a pressure-treated 2 by 4 ledger that’s screwed to the house wall; additional 2 by 4s and 4 by 4 posts form the side walls and center divider.
The rafters are also cut from 2 by 4s. Both the shelves and sheathing are ½-inch exterior plywood.
Redwood siding and battens cap the sides; additional trim caps the rafters and roof edges.