The idea behind this build is a lumber and offcut rack for a woodworking shop, made from cheap pine, with one small flourish: the corners of the pieces got beveled. For 25 euros of material, the maker is delighted with the result and even compared the finished look to Japanese ornaments.
Construction is straightforward but tidy. Light-toned uprights are fixed to the wall with screws, most of them biting into studs, and each one carries cantilever arms tilted up a touch, each with a raised stop at the front. The horizontal pieces meet in half-lap joints that slot together; the laps remove half the width of each piece, and glue keeps the joints locked in place. The shelves are only about 7 inches deep.
Against the oriented strand board wall, the rack holds lumber of various species, dimensions and shades, and the softened edges suit the pale wood nicely. My favorite detail is one the maker shared: shortly after finishing, they smacked their head on a corner and were glad those corners had already been taken off.
Some things remain open. The maker has not yet worked out the rack's strength and ease of use, and hopes that driving screws into studs will be enough to hold it. A moment-arm worry about the joints pulling apart came up; the answer was that the shallow shelves keep the lever effect small, the rack has already been tested by hanging off the verticals, and the maker thinks the wood joints would give way before the fasteners would.