Build a level base from 2x2 or plywood strips, shim to perfection, then anchor to studs. Screw assembled boxes together, add a simple poplar face frame, and your once-generic units suddenly gain shadow lines, rigidity, and proportions that whisper custom craftsmanship.
Stack bookcases to the ceiling, then scribe side filler panels to hug bumpy walls tightly. Hide seams behind stile pieces, and let crown or cove moldings bridge any gaps overhead. With sanding and caulk, the whole composition feels intentional, permanent, and quiet.
Appliances, electrical boxes, and radiators still need breathing room. Design removable panels with magnetic catches and cut discreet vents along toe-kicks or top rails. Maintenance becomes easy, and your built-ins stay safe, code-friendly, and quietly competent in everyday life.