Capacities vary by mounting method and product: small adhesive picture ledges are often rated up to about 5 pounds; wall-mounted shelf-and-hook combinations commonly list total capacities near 20 pounds; individual shelf limits of about 6 pounds and individual hook limits around 2 pounds are also reported. Check the specific product listing and mounting instructions for the exact per-shelf and per-hook ratings.
Space-saving features include wall-mounted or floating designs that free floor space, narrow tall hall trees that use vertical space, and collapsible or folding racks that fold away when not in use. Look for slim profiles and multi-function pieces (hooks plus a small shelf) for tight areas.