Our king size bed in our Aerolite 225RBSL has storage under it but it takes 2 guys to keep the lid open, which is only a small part of a rounded corner structure (Luan and 1 x 2). The bottom storage section is about 24 x 70 x 30. We need advise on what and how to install a lifter... We have found lots of DIYs on this site but have not really seen any options for this problem, it seems that the Bed lifter pistons have many problems ripping the bed frame
When I added gas struts to a previous camper, I put in additional wood supports. No problems with the bed coming apart. You will have to guesstimate the weight to be lifted.