The bed frame is constructed from selected solid pine wood and MDF which keeps the whole bed sturdy and wobble free.The upper bunk has high rails to ensure secure. The frame is capable of holding up to 400 lbs on the top bunk and the bottom bunk. Our Full over Full bunk bed with staircase,it is easy for you to climb up and down from the top bed. Featuring a smooth slide for you to play, this bunk bed can add fun to you and develop your sense of balance and coordination. In addition,there are 3 compartments of different sizes hide underneath the stairs for extra storage. This unique and intricately bunk bed creates a fun and adorable space that not only serves as a comfortable sleeping area but also double as a space for you to play and have fun.Perfect centerpiece for any child’s bedroom.