To create this Scandinavian cube, cut six matching twenty-four-inch square panels from three-quarter-inch Baltic birch plywood using a table saw equipped with an eighty-tooth carbide blade to eliminate edge tear-out. Use a digital router and an acrylic geometric template to carve a crisp eight-inch hexagonal entry hole through the left side panel. Rout a half-inch-wide horizontal dado groove along the interior right sidewall at twelve inches of height to support a removable mezzanine lounging shelf. Assemble the main cube using internal pocket hole joinery and glue, keeping the top and right sides accessible. Use a plunge router fitted with a forty-five-degree chamfer bit to bevel all exterior exposed plywood edges, creating smooth, touchable perimeter borders. Sand all faces with two-hundred-and-twenty-grit paper, apply two coats of clear waterborne matte sealer, and hang the front slab door on concealed push-to-open hinges for a clean, handle-free look.