Furniture Design Terra Shelving System by Seth Gamson The Terra Shelving System is a customizable, modular shelving system that affords its user an extra degree of creative freedom in shelving and display. Part sculpture, part shelf, the Terra Shelf is dynamic in both form and function. Each unit is made of a single ribbon of steel that is bent into form. When many are mounted together, a contiguous form zig-zags up and down and across a wall. The many bends in each unit offer multiple terraces for display. The spacing for its custom wall-mount hardware has been carefully devised to align with the studs of the common wall; 16" increments.