Expertly crafted from solid birch wood, poplar wood, engineered wood and MDF (medium density fiberboard). All wood is kiln dried, a process that ensures that the furniture will never split, warp, crack or mildew. Drawers feature English dovetail joinery and waxed wooden glides, which ensure smooth motion. Sturdy half-moon safety stops keep drawers securely in place. The use of veneers results in high quality furniture with flawless surfaces and consistent color tones. Finished in a child-safe, water-based natural stain that is applied by hand. GREENGUARD Gold Certified. Meets or exceeds stringent chemical emissions standards. DETAILS THAT MATTER Loft features guardrail, desk and bookcase with an open shelving unit. Desk unit and bookcase with open shelving unit are accessible from both sides if you want to add a bed or more comfy seating under the loft bed. Bookcase features three fixed shelves for extra storage. Includes two guardrails for the bunk and a solid wood ladder. Ladder is fixed and cannot be moved. A bunk mattress (mattresses are sold separately) must be used on the upper bunk; do not use a box spring on bunk. KEY PRODUCT POINTS Pottery Barn Kids exclusive. Maximum mattress height top bed 7.5". Weight capacity full loft bed: 500 lbs. Weight capacity twin loft bed: 250 lbs. All Pottery barn kids juvenile products are tested at 3rd party CPSC accredited labs to meet or exceed all industry voluntarily and regulatory safety requirements. Minimum recommended ceiling height: 8.5’. Make sure you check for hanging fixtures and ceiling fans when you measure. The Consumer Product Safety Commission recommends that top bunks not be used for children under 6 years of age. All Pottery Barn Kids juvenile products are tested at 3rd party CPSC accredited labs to meet or exceed all industry voluntarily and regulatory safety requirements. Anti-tip kit included: comes with safety-tested mounting hardware, instructions and a nylon strap. To prevent injuries from furniture tip-over, this item should be permanently fixed to the wall. how to install anti-tip kits. Imported.