French Cleat Thickness

MTbassbone

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Oct 24, 2016
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I am thinking about building a smaller French cleat wall using plywood to store hand tools.  Do you think I could do so with 3/8" plywood or is that too thin?  Also I need to attach to brick.  Does anyone have recommendations to do so?
 
Personally I use 3/4" poplar. I would not go under 3/4" unless you use it to hang a few screwdrivers.
 
What is the expected load? I've made cleat of similar thickness out of poplar. My tool cabinets are approx. 6" (D)×10"×20". One keeps spokeshaves...will find some photos later.
 
I have a strong preference for 3/4" maple or Douglas fir.  In certain circumstances, I might go for 4/4 or 5/4, depending on potential loading. 
 
3/8'' is way too thin. 3/4'' is the bare minimum but should suffice as long as you're not putting your anvil in.

A full hardwood cleat is also better than plywood.
 
If you're going to do it might as well do it future proof. Who knows maybe you'll want to hang a jobsite table saw or MFT table on the cleat wall some day. 3/4".
 
MY MISTAKE: OP is talking about a storage wall, not cabinets. [poke]

In that case, 3/4" would be my choice, nothing less.
 
For cleats screwed to the wall you can get away with plywood. If the cleat is through bolted to the load you could use plywood again but if the cleat is just glued to the load I wouldn’t trust plywood.

A brick wall is the worst circumstance for a French cleat hanging system.

Keep in mind that the cleat on the wall has to project from the wall at least as much as the thickness of the cleat attached to the load, and it must be straight, so a 3/8” cleat on brick will be very difficult to make work. A nice straight hardwood cleat shimmed and bolted to the brick is the way to go. And don’t scribe the cleat to the brick. Also, make sure there are no bricks sticking out past the brick side of the wall cleat that prevent the load cleat from fully seating on the wall cleat, not just in the vicinity of the cleat but the full area of the load, especially if the load cleat is set in to the back of the load.
 
My favorite material for cleats is 3/4” Baltic birch ply. I always have scraps laying around from other projects and it’s just about as strong as hardwood. Also, less prone to splitting when you have narrow cleats.

Don’t know about brick, but I’ve used Tapcon screws to secure my cleats to my concrete garage wall.
You might want to consider a plywood overlay for the brick and attach the cleats to the plywood.
 
Here is what I envisioned.  A base with a plywood bench top, and then have a sheet of plywood parallel with the wall for the French cleat system.  The bottom edge would rest on the bench top so the majority of weight would be on the bench.  Then add a filler piece on the back of sheet so I don't have to combat the irregular nature of the brick work. I am also considering peg board as I already have some of the hooks, etc. Thoughts?  Please discuss.
 
MTbassbone said:
Here is what I envisioned.  A base with a plywood bench top, and then have a sheet of plywood parallel with the wall for the French cleat system.  The bottom edge would rest on the bench top so the majority of weight would be on the bench.  Then add a filler piece on the back of sheet so I don't have to combat the irregular nature of the brick work. I am also considering peg board as I already have some of the hooks, etc. Thoughts?  Please discuss.

You're never going to get a sheet of plywood to align properly to any surface as irregular as a brick wall.  Period.  Full stop.  If you absolutely insist on putting french cleats on a brick wall, be prepared to spend hours getting the hardwood stationary cleats straight, spaced, aligned and plumb using copious shims.  Drill through the brick to hit solid studs and use GRK RSS screws for structural strength.  Alternatively, build a normal framed wall of truly straight lumber, not the big box store crooked junk, and hang the cleats from the new structure. 
 
If I put 4-5 spacers using 3/4" material between the brick and a sheet of 3/4" plywood essentially to remove the variability of the brick?  Would the 3/4" sheet of ply sufficiently hold weight of tools on the French cleats?  Is this too much stress to put on a brick wall?  I am thinking about building a bench first and try make it so the bench would take most of the weight.
 
If its just light to medium weight items I would use slat wall.  Not sure where in the world you are but HD, Menards sells it.  It comes in 4x8 sheets so you can just Tapcon it to the wall.  Its similar to French cleat system and there are tons of hooks and hangers made to work with it.  Its very popular in retail stores to hang merchandise on. 

Slat wall
 
If you need thinner than 3/4", then try using the commercially available aluminum versions. 

There are hundreds of variations available and a huge range of pricing (Amazon.com is no bargain for this item).
https://www.google.com/search?q=aluminum+french+cleat&client=firefox-b-1-d&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjF6tnDj6fzAhUyEVkFHS5PDTgQ_AUoAnoECAEQBA&biw=1600&bih=775&dpr=1

002efcae57f68d4d9fe00733c48673e3.jpg


 
I've seen Ikea's Sektion hangers.  Can those be used as a french cleat?  Their 84" rail is just $15.00.  They sell clips too.  But there are no detailed images that I can see, so I don't know if they will work for anything other than an Ikea cabinet.
 
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