Common kid-focused features include child-height designs, covered screw holes or round stickers that hide screws, raised baseboards, smooth waterproof surfaces for easy cleaning, and anti-toppling devices to secure the unit to the wall.
Common materials include solid wood or wood-frame constructions, chipboard/particle board, and MDF. Some modular units use polypropylene (PP) panels with a metal frame and reinforced ABS connectors.
Load ratings vary by model. Some list per-cube capacities around 11 lbs, others about 22 lbs. A few listings specify higher overall top/load ratings (one horizontal unit up to 250 lbs and a kids' model listing a top load of about 155 lbs). Always check the specific model's published capacities.
Common finishes include smooth lacquered surfaces, decorative 3D paper veneer or wood-grain textures, and water-resistant or easy-to-clean coatings.