CHAIR
My design of a usable chair and desk uses one unseparated 48" x 80" sheet of corrugated cardboard per piece.
Nothing is detached and assembly of each element only consists of folding a single cut sheet.
No glue, tape, string or fasteners of any kind are present in the design. Cardboard is the only material used.
The chair holds up to 180 pounds of static weight, and the desk up to 10 pounds.
The assembly also folds up to fit in a portable dimension of 12" x 16" x 24" for transport.