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Author Topic: Finding Hinges for Large Barn Doors  (Read 4345 times)

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Offline Glenn1

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Finding Hinges for Large Barn Doors
« on: January 16, 2016, 08:18:54 PM »
I am adding some large doors to our barn.  I decided to use hinges instead of a top track as I believe it will be easier to open and close.  The opening is 18' wide so each door will be 9' wide by 12' tall.  I have read that door movement is calculated by multiplying the weight of the door (440 lbs) times the width in feet.  That would come out to 3960 lbs. 

I have found some extra heavy duty hinges that will work, but they are close to $200 per strap hinge. Below is their chart for calculations. 

http://www.hardwaresource.com/images/products/886002-Weight_Chart.jpg

I have found less expensive strap hinges  that will hold "140 lbs for each hinge. I am wondering if they will be sufficient to hold these massive doors?  Cost is only $18 per hinge which makes me a bit concerned. 

http://www.barndoorhinge.com/Barn-Strap-Hinge-Heavy-Duty-20.html

Your suggestions would be appreciated.
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Offline POSTON WIDEHEAD

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Re: Finding Hinges for Large Barn Doors
« Reply #1 on: January 16, 2016, 08:25:33 PM »
Glenn, I have a friend who is a welder. He went to the scrap yard, bought what scrap he needed for hinges and built his own.
He did a good job and came out cheap. I wish I had pictures but I don't.
His hinges looked just like old barn hinges. He had 4 per door.
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Offline scouter Joe

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Re: Finding Hinges for Large Barn Doors
« Reply #2 on: January 16, 2016, 08:58:38 PM »
Gate hinges are fairly heavy duty . They may work out quite a bit cheaper . scouter Joe

Offline ayerwood

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Re: Finding Hinges for Large Barn Doors
« Reply #3 on: January 16, 2016, 09:21:52 PM »
I have some massive doors on my shop and looked all over the internet for something heavy duty enough to work. One of my openings is 22x12 and the other is 18x16.  I ended up going with my local welding outfit to feel confident in the hinge strength.  I got 12 5'x4" for the large bay openings and 6 3'x4" strap hinges for my loft barn doors. Nothing artsy, just squared tips.  Cost me around $1300 for all the hardware and worth every penny. 

Offline Magicman

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Re: Finding Hinges for Large Barn Doors
« Reply #4 on: January 16, 2016, 09:28:25 PM »
Will your door facing/post hold that much unbalanced load?
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Offline Glenn1

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Re: Finding Hinges for Large Barn Doors
« Reply #5 on: January 16, 2016, 09:49:04 PM »
Will your door facing/post hold that much unbalanced load?


That is a very good question.  I am using 6 x 6 but I don't know how to know before trying it.  Any suggestion?
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Offline Kbeitz

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Re: Finding Hinges for Large Barn Doors
« Reply #6 on: January 16, 2016, 09:57:20 PM »
For super heavy doors i go to the junkyard and buy leaf springs.
They make great hinges. Just cut the main leaf in haft.

 

 

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Offline Glenn1

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Re: Finding Hinges for Large Barn Doors
« Reply #7 on: January 16, 2016, 10:07:48 PM »
For super heavy doors i go to the junkyard and buy leaf springs.
They make great hinges. Just cut the main leaf in haft.

 

 (Image hidden from quote, click to view.)


  It seems that the door would be difficult to move and then spring shut.  Can  you explain how to mount them and how they work?
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Offline kensfarm

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Re: Finding Hinges for Large Barn Doors
« Reply #8 on: January 16, 2016, 10:29:59 PM »
Glenn, I have a friend who is a welder. He went to the scrap yard, bought what scrap he needed for hinges and built his own.

A welder I paid to do multi jobs..  he used 2 square pieces.. then small thick square tubing cut into 6 short.. use a solid rod that fit nicely in the square tubing.. alternate sides.. spot weld while round in.  We built a nice size hinge for the 50ft tower of my wind turbine.  I lowered the whole tower down w/ ropes connected to tractor FEL.  I had a geared setup to a 5hp pm dc motor.. that bad boy was heavy.

 

 

Offline Gary_C

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Re: Finding Hinges for Large Barn Doors
« Reply #9 on: January 17, 2016, 01:55:12 AM »

That is a very good question.  I am using 6 x 6 but I don't know how to know before trying it.  Any suggestion?

Yes, don't try it. A solid 6 x 6 does not have enough bending strength to resist that side load. You will need an I beam or square tubing plus having the uprights set in concrete and braced. A laminated beam with multiple layers would be better than solid wood post.

Pay particular attention to the clearances at the hinge pins. Not only will you have significant wear, but any slop in the pins will be difficult to deal with.
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Offline timberlinetree

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Re: Finding Hinges for Large Barn Doors
« Reply #10 on: January 17, 2016, 07:32:03 AM »
The tobacco barns around here have heavy doors. I have a few you could have or try eBay? We will be down that way next week end. Just pm us.
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Re: Finding Hinges for Large Barn Doors
« Reply #11 on: January 17, 2016, 09:18:42 AM »
  Swinging doors don't work well in snow country unless they swing in and then you lose a bunch of space.  Shouldn't be an issue in NC  ;D :)
  What about using more of the $18.00 ones ???  Use six instead of four ???  Maybe even eight to make up for their lighter load rating.  To help support the load what about adding a wheel for the door to roll on ???
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Offline Glenn1

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Re: Finding Hinges for Large Barn Doors
« Reply #12 on: January 17, 2016, 02:09:13 PM »
The tobacco barns around here have heavy doors. I have a few you could have or try eBay? We will be down that way next week end. Just pm us.

I will try to find the parts needed locally "with all the excellent suggestions" but I do appreciate the offer.   You are very welcome to come by if you have the time.
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Offline WV Sawmiller

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Re: Finding Hinges for Large Barn Doors
« Reply #13 on: January 17, 2016, 04:56:39 PM »
Glenn,

   Can you add a roller at the bottom of the door to help hold up the weight on the end opposite the hinges? You can buy them at TSC and such that swivel in all directions.
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Re: Finding Hinges for Large Barn Doors
« Reply #14 on: January 17, 2016, 06:20:46 PM »
For super heavy doors i go to the junkyard and buy leaf springs.
They make great hinges. Just cut the main leaf in haft.

 

 (Image hidden from quote, click to view.)


  It seems that the door would be difficult to move and then spring shut.  Can  you explain how to mount them and how they work?

I use 3 parts (4 counting the large bolt) to make one hinge.

 

 
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Offline gspren

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Re: Finding Hinges for Large Barn Doors
« Reply #15 on: January 17, 2016, 08:41:46 PM »
   My barn originally had large hinged doors that I changed to sliders which I find easier, what about sliding doors don't you like?
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Offline Glenn1

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Re: Finding Hinges for Large Barn Doors
« Reply #16 on: January 17, 2016, 08:55:01 PM »
   My barn originally had large hinged doors that I changed to sliders which I find easier, what about sliding doors don't you like?

Each door is 9' wide by 12' tall and weigh around 350 lbs when green.  I do not know if I will be able to push the doors.  How big are your doors and do you have any trouble moving them?
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Offline gspren

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Re: Finding Hinges for Large Barn Doors
« Reply #17 on: January 17, 2016, 09:06:21 PM »
  On my one pole building I have 12' X 12' doors, each door, opening is 24' wide and no problem. Get track and quality rollers that are designed for that weight or more.
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Offline Glenn1

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Re: Finding Hinges for Large Barn Doors
« Reply #18 on: January 18, 2016, 09:25:41 PM »
Hi Howard,

I took your advice and ordered some 10" pneumatic wheels filled with foam so I shouldn't get a flat.  This should definitely take the pressure off the hinges.  Great suggestion!



Glenn,

   Can you add a roller at the bottom of the door to help hold up the weight on the end opposite the hinges? You can buy them at TSC and such that swivel in all directions.
Vacutherm IDry, Nyle 53 Kiln, New Holland Skid Steer, Kaufman Gooseneck Trailer, Whitney 32A Planer

Offline Don_Papenburg

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Re: Finding Hinges for Large Barn Doors
« Reply #19 on: January 18, 2016, 09:30:08 PM »
I have a 2400 lb door on the back of my shed that is on double Cannonball track and rollers. works just fine , takes a bit to get it started.  The door is 26'x16' with a 4x6" steel frame and 5/8" plywood sheathing.
 Might want to google  Ibeamdoor they make an extruded aluminum track with aluminum roller frame that has 4 wheels supporting the door and 2wheels running horizontal to guide the roller truck inside the track . It is very smooth  Rated a 3000 lb .  I saw it at the Peoria farm show this year .  I think Borkholder building are using this track set up.
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