I built this rolling triangle shaped frame as a multi-purpose piece of shop furniture. It’s primary function will be as the frame for my maslow CNC router, which is why the front face is at a 15 degree angle and it has the 10′ unistrut beam at the top to mount the chain drive motors on.
But, if I’m going to have a frame to hold a 4’x8′ sheet in my garage, I wanted the back of the frame to serve a useful purpose, so I integrated sheet and board storage into the rolling frame. I can store multiple 4’x8′ sheets inside, along with many long boards in the top. It also stores various pieces of flat plastic and glass I’m saving for important future uses.
Construction was relatively straightforward except for the fact that I had to cut a lot of 15 degree angles on one end of each of my frame boards. I made three triangular frames out of 2×4’s. The three boards that make up my triangle(ish) frame are 31.5″, 73.5″ and 68.75″ on the long side. They each have one 90 degree angle end, and one 75 degree (15 degree cut) end. The top of the “triangle” is flattened and the outside ends of the 2×4’s are ~13″ apart (12.392 according to calculations, closer to 13 in reality), later to be supported in place by a cantilevered piece of unistrut/superstrut that will hold up the 10′ piece of superstrut to support my X/Y axis chain motors.
Then I used two pieces of 4×8 chipboard left over from the last hurricane as the front and back, and a 30″ piece of nice plywood notched around the 2×4’s for the bottom. I put an 8′ 2×4 stud along the bottom of the front board to be used as a ledge to hold up my work piece. I also cut three 17″ long pieces of 2×2 with a 15 degree cut at one end which I mounted with the bottom 50″ above the flat bottom 2×4. These helped hold the system together before I mounted the unitstrut on the top, and also serve as shelf supports for long board storage above my main area for sheet storage.
I bought two 10′ lengths of “SuperStrut” (Lowe’s version of Unistrut) and cut one down into three 26″ long sections that I lag bolted to the top of the 2×4 uprights. These cantilevered pieces support a 10′ length of superstrut which will support my maslow’s X/Y chain drive motors.
This is a welcome improvement over my previous sheet/board storage solution.