French cleat fever - bookshelves under stairs
Successful trial in my workshop convinced me that this system will work fine for more serious applications: holding books!
In a non-rectangular space, like under stairs, custom-made shelves are the only option to fully utilise the place. Contrary to workshop shelves these needed to look good but otherwise the main principle is the same: 45-degrees cleats and shelves with supporting cleats.
As I detest MDF manufactured boards (glue with wood shavings, laminated in plastic foil) I chose to use solid wood.
- Base boards are planed pine, solid.
- Shelves will be made of glued, pine boards - ready made.
- Supports will be made from scrap marine plywood which I have a lot lying around. It’s sturdy and thick, perfect for this job.
After some trigonometry to get the dimensions I cut all lumber to size. Plywood bits were ripped on table saw and smoothed, to better accept paint and look nice. They will be highly visible after the shelves are done.
I wanted them all to line in straight columns when hanged on the wall so I took careful measurements on how to space them to support different-length shelves properly yet to align into columns. Not to mention that they must not land on electrical outlets already existing on this wall.
Initial assembly of all components and dry-fitting on the wall.
All fits well - with the exception that the wall itself is not straight! This is one reason most projects described on Internet use a sheet of thick plywood as a base for this system. Plywood-mounted base boards with cleats are then attached to the wall, covering any wall bumps & valleys with straight plywood. The whole system relies on this one prerequisite: for cleats to work they need to be mounted on flat surface.
Well, I will have to cope with that somehow. I don’t want to have yet another plywood board here. To accommodate for curly wall I make custom support spacing which will equalise uneven surface behind the cleat. More work for me but the result should be fine. With added load of books the wood will accommodate to some unevenness and the cleats will eventually interlock.
The most tedious part of the project is now: after removing and disassembling all components again I took them to my workshop for painting.
It took 3 days to paint them so that all knots are covered but the result is worth it.
Installation: first base boards, with multiple screws to distribute anticipated (heavy) load.
Sockets close to the floor required bottom baseboard to be divided into three parts. Shelf’s cleat will land just above the outlets.
Then came assembled shelves and the job is done.
Loaded with 1 ton of paper the construction shows no signs of fatigue nor makes any squickig noises so I consider this to be a success.