Happijak Bunk Mod - are 3 Bunks Possible?

loudounrv wrote:

msmith1.wa wrote:
I think it would work. You would need a set of the brackets that are used for the upper bunks to attach your new platform and drill holes at the height you want it to be.

Thanks msmith1.wa -- I'm glad it sounds possible. So, buy the brackets and get them on the chain track. Then, I set the height for the top bunk wherever I'd like with my drill and a few strategically placed holes, right?


I've never used the system -- so my assumptions are all coming from a few YouTube videos showing how to raise and lower the bunks. When lowered, what stops the top bunk -- pins in the track? If I want the top bunk to go lower, do I need to drill more holes, or does the track have a variety of holes for you to choose from? Just curious if it's that simple or not.

Also, does anything stop the lower bunk on its way down? I've thought about replacing the convertible chairs with a simple platform and mattress (like the top bunk). I'd raise the beds during the day and let the boys use bean bags, or folding chairs. Then I'd lower the bunks at night.

To give everyone enough head room with 3 bunks I'm just curious how low that lowest bunk could go. Thanks again!

The top platform is held up high with pins thru the chain guides and is stopped on the way down with metal blocks in the chain guides.
We got a thicker mattress for the top platform and I drilled a new set of holes to allow for the different height. There was a set of holes already in the guides, but I needed one more set a bit lower.
I adjusted the spacing between the platforms by moving the stop blocks in the chain guides.
Our lower platform had a convertible couch which made a horrible bed so we built a whole new platform box similar to the top one for a permanent bed.
The lower platform has minor height adjustments on the brackets and with some modification probably could be made to go even lower.
I think a 3rd flat platform could be made for the top, you would just have to play with the pin hole and stop block spacing to see if it would work for you.
I beefed up the platform to chain bracket attachments because they were bending a bit, the spot welds weren't holding.