Using your new oak twin industrial bunk bed is easy. First, make sure to fully assemble it according to the instructions. Place it in a suitable spot in the bedroom where there's enough space around it. For the mattresses, choose ones that are 6 inches thick for both the top and bottom beds. When using the top bunk, always use the built - in ladder and hold onto the guardrail. Remember, the weight limit for each bed is 150 lbs, so don't exceed it. As for maintenance, regularly check the connections of the frame to ensure they're tight. Wipe the wood surface with a clean, dry cloth to keep it looking great. If there are any spills, clean them up right away. Enjoy your stylish and space - saving bunk bed!