Tubing for bed floor

What size box tubing should I use to make a new bed floor? I was think 1" with a 1/8 wall. Will this work?

i believe that is whats bein used to frame out the bed floor then just skin it....

that will wor just fine or you can do 2x2 1/8 wall

I used 1x1 with .125 wall for my bed..check out my profile for pics