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My current multi-level garage layout is the result of too many extensions and partial rebuilds over several years as I transitioned from "traditional" 0 to scale sized equipment. The result, poorly constructed benchwork and too many inaccessible places.

I'm about to tear down and rebuild and, this time, I'll make a plan first!

The layout will have 2 main levels with a 23.75" vertical separation connected by a helix around the perimeter - there is a  third level (not shown) on a shelf 10" below the ceiling which I plan to retain.

I want to use a 5/8" plywood base on the lower level (so I can stand on it) with 1/2" or 5/8" for the upper level.

The frame will be a 3"x2" grid with 3"x2" rails attached to the two walls providing support and lateral stability and 3"x2" legs on a 48" grid.

 

I think the 24" grid frame should work but I'd like some advice on whether this makes sense and any suggestions or observations will be gratefully received.

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Almost anything will support you. We are restoring a three level layout built entirely of 1" x 4" framing and 1/2" ply (5 ply at that).

 

The legs are 2" x 4" with a 1" x 4" support ledger.

 

It is 17' long and 11' wide. The 2nd and third level are  1/2" on 1" x 4" supports.

 

Good first level framing geometry and leg location and use what you prefer.  Floor grade ply has more plys (usually 7) for better strength and warp resistance.

In my experience 1-4 grid joists and 2x4 legs is faster[less fabrication] and the standard stock is straighter. A couple of times over the years I have set up saws in the Shop and ripped 2x2s, 1x3s to avoid the crooked/twisted lumber yard stock, often late from squirrel habitat. I built two of Linn Wescott's much fabricated bench work in HO days and finally realized that I was being just being trendy, labor intensive and more expensive.

Just my 2 cents.

Last edited by Dewey Trogdon

I really like using the ledger board on the 2 x 4 leg to hold the weight. Then the screws are only holding the board.

 

I had to cut level 1 on that layout into 3 sections. We have to diassemble and move it to it's final location in the museum. I only had to a one or two joists in the center of the ends from the original construction.

 

I did add a few more legs.

 

The framing and legs are fine for weight. It will jiggle a little due to no diagonals for the legs. May add a couple after it's in it's home.

 

Your layout will have a some weight than this one, so perhaps a tighter grid.

 

Like Dewey said, it's tough to get straight 2 x 4's today. You even have to go up a grade on the 1 by's to get straight pieces.

 

Many like "house like" structures when it's not really needed.

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