Leaning Ladder Wall Bookshelf

Cut the legs per the cut list — both ends at 5°. Use a speed square to mark off the back top corner square to the top angled cut, so 2-1/2" is trimmed off the back, and cut with a circular saw.

Attach the back support to the back of the legs, flush to the top and back.

Build each shelf by nailing and gluing its back to its bottom with 1-1/4" brad nails or staples and wood glue — glue every nailed joint. Add the sides the same way, cutting the corner angles at a repeatable saw setpoint rather than measuring each one individually. For extra strength, the sides can also be pocket-holed from underneath.

Position the frame against the wall with the legs held 9-1/2" out. Measure up 9-1/2" and add the bottom shelf with clamps, checking level, then screw on with 1-1/4" screws.

Cut an 11"-long plywood spacer block and use it to position each remaining shelf at a consistent gap. Attach the top of the frame into real wall studs — this is required to prevent the leaning frame from tipping forward. Sand and finish.