...I do not trust bifold doors at all. I've seen first hand what happens when cables break and they come crashing down. We installed this... FarmerJon

Duramax Forum
This is a High Powered sited dedicated to Chevy and GMC Duramax Diesel Truck Owners. Welcome!

...Well, the folks at Higher Power Hydraulic Doors may have figured out a solution...

Hansen Buildings
Residential, Agricultural and Commercial Pole Barn Building Kits.

...I watched their display go up and down probably a thousand times that week. Looks like a solid, relatively simple system... mkburcar

Vans Airforce
A site catering to the lifestyle of building and flying Van's Aircraft 'RV' kitplanes.

...I have always like the looks of the Higher Power. I would go that route, it just makes sense.... seedcleaner

Ag Talk.com
Discussion of all things aerial, satellite, and unmanned vehicles in production...

...I fell in love with a new and fairly unknown door design at Oshkosh last year, the Higher Power Door..... Bob

Zenith Aircraft Builders and Flyers
Online community for active builders and pilots of Zenith Aircraft kits.

...Im saving my pennies for one of these. It is a freestanding hydraulic door that requires no superstucture attached or built into your building. It's all self contained so a retrofit is easy..... Crzyivan13

Back Country Pilot
Web magazine and pilot community for backcountry, bush, STOL, off-airport, and mountain flying.

...A Higher Power hydraulic door will be going on the hangar I'm about to build.... Little Wing

SuperCub.org
General Super Cub Chatter forum

...Kinda thinking about a door kinda like this one... verbatime

Ag Web
AgWeb is your source for agriculture news online.

...pretty fast operating door. My door is 24 seconds full travel open, and 27 seconds full travel closed... SuperFly

Wings Forum
Forum for homebuilt experimental & light sport aircraft pilots, owners, & builders.

...If you are getting a pro builder to build it in Canada look up integrity post. I haven't seen anyone beat their price yet for what you get including quality. For doors I highly recommend HP doors.... Esser

Team Kitfox
The web community for Kitfox Aircraft builders, owners, and pilots.

...I wanted a large door on a heated shop I would seriously look at the hpdoors... havin'funfarming

The Combine Forum
The Combine Forum is the top resource for combines, combine maintenance, combine farming, combine tractors, John Deere, Case tractors and more.

...Their door has a "cam action" roller at the top that enables the cylinders to constantly push UP, vs out as in most hydro doors we've seen... Ron..NE ILL..10/48

Ag Talk
Discussion of all things aerial, satellite, and unmanned vehicles in production...

...When I was at Oshkosh, I looked at the various hangar doors. The two that looked good to me were Higher Power doors and... UnPossible

Van's Air Force
A site catering to the lifestyle of building and flying Van's Aircraft 'RV' kitplanes.

...Superior design IMHO in that the hydraulic cylinders extend & retract straight up and down, and there is no additional force on the frame of the building... Patrick

Zenith Aircraft Builders and Flyers
Online community for active builders and pilots of Zenith Aircraft kits.

...The Higherpower Door is the ticket for hangar doors. It doesn't need a heavy overhead beam or truss. It has its own frame...

The Hull Truth
TheHullTruth is the premier boating and fishing forum on the web!