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2 14"X36" pine boards
2 26"x14" pine boards
2 1" diameter 28" wide dowels
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Do not forget , S5 is fire hazard.
S5 is fire hazard? Do you mean it is even worse then the average mining hardware?
no. it can get hot, but nothing near starting a fire. (for reference the PCB is about 45-50C stock and runs fine at >65C if the cooling is sub-par --- the SP20 PCB gets to 65-80C in normal operation with the chips exceeding 100C)
S5 is probably no more of a fire hazard than the SP20, and far safer than the prisma batch 1. (In fact, I dont think any S5 units have caught fire yet, but for sure a warehouse of SP-T gear burnt to the ground). a wooden shelf wont catch fire unless it reaches really high temperatures, so its pretty damn safe.
a few easy ways to make it safer: use wood that is denser and treated. plywood is more flamable then cut boards, and metal cant burn at all. (in fact, wood wont conduct electricity or short exposed contacts so its a good choice)