Shelf weight ratings vary enormously by material and support span: a solid wood or plywood shelf under 36 inches wide with center support can often hold 50 pounds or more evenly distributed, where a particleboard shelf of the same span sags measurably under half that. Adjustable shelving on pegs or clips is more prone to sagging over time than fixed shelving, especially loaded with books, which are denser than most people estimate — a single shelf of hardcovers can easily weigh 40 to 60 pounds.
Enclosed media consoles that house AV equipment need real airflow — back panels with cutouts or vents, and ideally a gap of at least an inch behind components — because streaming boxes, receivers and game consoles generate more sustained heat than older equipment and can overheat and shut down in a sealed cabinet. Ask specifically whether a console's back panel is vented or solid before buying one to hold electronics.
As with bedroom furniture, drawer glide quality is the first thing to fail on storage pieces under regular use — metal ball-bearing glides rated for a specific weight outlast plastic or wood glides by years. Soft-close hinges and glides, now common on mid-tier and up pieces, are a genuine durability feature, not just a quiet-living convenience — they reduce the repeated impact that eventually cracks cheaper hardware.
Weight capacity, ventilation and hardware quality rarely show up in a product photo, which is exactly why knowledgeable floor staff matter more for storage furniture than for almost any other category.