metal loft bed twin size with desk, loft bed full-length guardrail, no box spring needed (black) harper & bright designs loft bed with desk and bookcase, full length guardrail and desk, super functional choice for any families<br> behind every sweet dream is a good bed, and if you’re still looking for the right one for your kids’ room, <br> this product is here to help. after assembly, this product accommodates most twin-size mattresses (not included)<br><br> key elements<br><br> slat kit included<br> bookcase included<br> guardrails included<br> built-in ladder included<br> desk included<br><br> box spring required: no<br> mattress included: no<br> assembly required: yes<br><br> dimensions<br><br> upper bed: 41.4" x 78.1"<br> desk: 15.1" x 75.6"<br> shelves: 7.8" x 15.7"<br> weight capacity of upper bed:220lb<br> weight capacity of desk: 66lb<br> weight capacity of shelf: 4.5lb<br>