Foamie/plywood hybrid?

[TarynNS]

Hi all, I'm looking to build a standie that can sleep three to four people, and so probably something that can accomodate bunk beds. Structurally, a plywood camper seems to make sense for that. But if I find plans for a plywood camper which I really like, what things do I need to consider if I choose to replace nonstructural parts - some part of the outside walls and roof, etc. - with foam? I want to do so both to cut down on weight and to improve insulation - I'd like to be able to use my camper in early Spring and late Fall.

Is my best plan to do a wood frame faced with a traditional foamie shell, or maybe have the bottom half of the walls be external plywood lined inside wth foam with a transition to just foam on the top half? What sorts of structural weaknesses am I introducing if I create a hybrid?

 

[ghcoe]

If you make a strong floor you can make a traditional foamie and then just add supports at the bunk locations in the interior. I have other ideas but have not tried them yet myself so not sure if they would work or not. Good luck with the build. George.

 

[LoweQuality]

Hi all, I'm looking to build a standie that can sleep three to four people, and so probably something that can accomodate bunk beds. Structurally, a plywood camper seems to make sense for that. But if I find plans for a plywood camper which I really like, what things do I need to consider if I choose to replace nonstructural parts - some part of the outside walls and roof, etc. - with foam? I want to do so both to cut down on weight and to improve insulation - I'd like to be able to use my camper in early Spring and late Fall.

Is my best plan to do a wood frame faced with a traditional foamie shell, or maybe have the bottom half of the walls be external plywood lined inside wth foam with a transition to just foam on the top half? What sorts of structural weaknesses am I introducing if I create a hybrid?

What size is the trailer that you're planning on using? I'm in the planning stages of basically the same thing. My trailer is a former pop up. Its roughly 11' long by 6' wide. My plan is to have a queen at the back on a platform and a set of bunkbeds in the front.