The bunk bed frame is constructed from selected solid pine wood and MDF and iron alloy bolts which keeps the whole bed sturdy and wobble free, make sure it doesn't squeak when using to give your child a good night's sleep. Convertible bunk beds with built-in stairs instead of a ladder for easy access to the top bunk, and there are storage grids built into staircase which can effectively save your space, perfect for store other necessities. Two storage drawers under the bottom bed, storage space to store children's toys. Space-saving design bunk bed with desk is deeply loved by most people.