RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×

Rate this Entry

Project #3 - Convert twins to Mega King

Posted 03-18-2013 at 04:38 PM by outofcontrol

We share this trailer with my wife's brother. It's a great co-ownership, and we spend a lot of time camping together anyway. The problem is there's 6 of us. 4 adults, and 2 kids (so far). We're done having kids, but they have one, and are talking about 2 more.

Stage 1 - Convert twins to queen + twin in back.
Stage 2 - Replace front goucho with modern "J-Lounge/Dinette" for better eating, lounging, and nighttime accommodations.
Stage 3 - Add bunks to rear bedroom.

I thought if I took out the night stand between the twins, bridged the walkway with plywood, and found some foam to fill the void I'd be good to go.

Then I found a Queen mattress in the classifieds and it was 30 min away in the 'Couve in WA. The seller had excellent dimensions, actually found the design drawings from AS and sent them to me. It would be a perfect fit!

Bought the mattress for $100, and it was like brand new. I had a leftover piece of 7/8ths plywood from another project and set out making some measurements.

Made some blocks to hold it up, screwed in a front support to the edge, and voila. Enough room for me, the wife, and our 5yr old. Stage 1 complete for maiden camping voyage this weekend.

Posted in Uncategorized
Views 1581 Comments 4
« Prev     Main     Next »
Total Comments 4


  1. Old Comment
    nice work. you might consider drilling some holes in the plywood to let the mattress air. there are a number of threads on here re: mold and mildew growing under mattresses that are on top of solid plywood. i think the one thread OP put in slats instead.
    Posted 03-22-2013 at 02:52 PM by
  2. Old Comment
    outofcontrol's Avatar
    I'm sure that wouldn't hurt at all.

    Big 2" holes? or a bunch of 1/2" holes? I suppose either would work.

    Interesting that the original twin mattresses sit on thin plywood from the factory.

    Thanks for the comment.
    Posted 03-25-2013 at 10:17 AM by outofcontrol outofcontrol is offline
  3. Old Comment
    andreasduess's Avatar
    There's a material available that looks a bit like a basement waterproofing liner. It raises the mattress slightly, allowing for adequate airflow.
    Posted 07-14-2013 at 08:25 AM by andreasduess andreasduess is offline
  4. Old Comment
    I recently did about the same thing, I filled in the center void with 1/4 in ply - bridged the opening with 1x 1 1/2 slats notched into each side... I took the center table, split it and cut the curves to fit each upper corner like night stand tables... I took the single mattresses and slid them together ( fastened some one by on each side to keep them from shifting apart, topped it with a 2 1/2 in king featherbed topper and it is the most comfortable bed I have ever slept on (and I have a temperpedic in the house). We filled in the voids on each side with body pillows and shazam one heck of a bedroom! She is in getting new breaks and such or I would enclose pictures - If any one wants more info on this project just give a shout...JV
    Posted 07-15-2013 at 08:04 PM by BigPineJandK BigPineJandK is offline

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.

All times are GMT -6. The time now is 03:12 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.