Bed plans. easy to build bed plans these bed plans require minimal equipment, and use regular 2×4 construction lumber. they correspnd to the four standard mattress. Many people look for a more functional use for rv bunk bed space.this unique rv bunk bed transformer offers a distinct improvement to the sofa footprint.. Staircase bunk bed available in white, pink, blue or other colours. built-in storage steps. available in 2 sizes. lovely sturdy children’s bunk bed. bunk bed with.