Ben Uyeda built a DIY spiral staircase using layered pieces of plywood cut with a CNC machine. This is absolutely stunning.
Indeed an “economical” idea, but is it safe to use this d-i-y spiral stairs? The designer addressed the missing handrail but no other safety aspects. Clearly there would be some concerns for ensuring proper step dimensions, railings and handrails, and markings on treads.
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