DIY end walls for high tunnel

Earlier this year I bought a 14' gothic high tunnel kit from Farmer's Friend that I'm finally getting around to putting up. After it got delivered I realized I forgot to order prefab end walls and ordering them now would incur a hefty additional shipping cost. I'm a reasonably competent carpenter and fabricator so I'm considering building my own. I've googled around a little to see what other people have built but I haven't found much.

I don't need a completely paint-by-numbers guide but I'd like to know the right/easy ways to do it before I start buying materials and making mistakes. I can work out dimensions, cutting plan, etc. but I'm looking to see things like how people handle attaching the end wall to the tunnel frame, how people have built doors, attaching the film, etc. I do know that I want to build the frame to support installing a vent on each end above the door.

Thanks in advance!

Would something like this work:


source

I have a well stocked barn. I enclosed the ends of my high tunnel with a couple of storm doors and some storm windows.

John F Dean wrote:I have a well stocked barn. I enclosed the ends of my high tunnel with a couple of storm doors and some storm windows.

How did you attach them to the hoop frame? Did you put a board along the bottom or anything like that? My tunnel does not have anything going across at the bottom of the ends.

Anne Miller wrote:Would something like this work:


source

Yeah, I was envisioning something similar to that. My tunnel already has a purlin tube so I wouldn't necessarily want to duplicate that with lengthwise beams like I see here. So my big question is around how I would attach the end wall frame to the hoops. I can think of ways to hack things together with U-bolts and some sheet metal or flat bar but I wanted to see what others have done before I reinvent the wheel, poorly :)

Hi Colin,
I used some of what I believe is called "plumber's tape"... it is the metal roll with holes in it, used to hang pipes and such. I wrapped that around the greenhouse and screwed it into the wood on both sides... essentially making my own U-bolt. They did ok. I don't know if I could recommend doing it, but it held ok, and was really cheap.

Mine isn’t a high tunnel, just a tunnel, but the same construction techniques could be used on a high tunnel.  On my end walls, I bolted a 2x6 board to the 2x6  board tunnel foundation, then bent and attached a single wire of the same type use to make the tunnel supports and bent to the same shape.  Then framed in the door and built two identically sized doors to fit into the door frame opening.  One door is covered with greenhouse film and hinges outward, the second door is covered with screening and hinges inward.  When it is cold, the outer covered door is closed and the screen door is open, when it is hot, the inner screened door is closed and the covered door is open.  I used wire to attach the end walls to the main tunnel structure.

I see this post is a few months old, and you probably already figured something out, but here is what I did.