Mainstays Twin-Over-Twin Wood Bunk Bed (Espresso) for $179.88. Select free site-to-store for in-store pickup at Walmart to save on shipping. Otherwise, shipping is $14.97 for a total of $194.85 shipped. Here is a screenshot for your reference. It is also available in Cherry and Honey Pine finishes. It is made of solid wood, has guard rails on the top bunk and an integrated 4-step ladder for safety, accommodates standard Twin size mattresses, converts to two twin beds, and measures 79.75″L x 44″W x 62.25″H.