PRICES MAY VARY. Made with sturdy metal construction include metal slats, full-length guardrails and a ladder integrated to the frame. The metal bunk bed frame dimensions:41.54"(W)x77.95"(L)x53.94"(H),loft bed upper side guardrail is 11.61” high and weighs 93lb with a max support of 500lb. Children under 6 years old should not be allowed on upper bunk Twin over twin bunk bed design upgrade,support leg increases interface non-slip bed base,iron slats plastic buckle easy lock,strong mattress…