Using your new Devan Modern L-Shape Twin Bunk Bed is easy. First, find a suitable spot in your child's room, guest room, or rental. Make sure the area is flat and clean. The bed fits standard twin-size mattresses, so you can easily find ones that match. No box spring is required. Assembly is straightforward as it comes with step - by - step instructions. It's recommended to take about 180 minutes for assembly. When it comes to maintenance, wipe the painted and powder - coated surfaces with a soft, dry cloth regularly. Avoid using abrasive cleaners as they can damage the finish. Be aware that the product contains lead, which is a Prop 65 - listed chemical with risks of cancer and developmental issues. Keep it out of reach of small children who might chew on the bed. Also, the weight capacity of each bunk is 400 lbs, so don't exceed this limit to ensure safety and durability.