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Hanging Swinging Carriage House doors

by Rennovator001
posted 01-05-2017 03:27 AM


6 replies so far

View jerryminer's profile

jerryminer

923 posts in 1439 days


#1 posted 01-05-2017 07:53 AM

You are smart to anticipate some drop. 1/8” is pretty tight tolerances for this type of door system. If I were doing this, I would seriously consider using adjustable strap hinges, which allow you to take out the sag without de-mounting anything.

With a fixed hinge, you will need to take out all the play in the hinge as you install. Strap hinges in general have a lot more slop than a typical butt hinge.

The weight of the door will pull the door away from the jamb at the top, and toward the jamb at the bottom. Be sure the top hinge is pulled tight and the bottom hinge is pushed tight at install. Hope that makes sense.

-- Jerry, making sawdust professionally since 1976

View JBrow's profile

JBrow

1354 posts in 917 days


#2 posted 01-05-2017 02:16 PM

Rennovator001,

If two hinges are used; each will carry 150 pounds. If the number of hinges is doubled from two to four hinges, each hinge would carry 75 pounds. As a result problems related to wear of four hinges and their moorings could be reduced. Awareness of the load rating of the hinges, if it can be discovered, could be useful information in determining whether more than two hinges are required.

View Rennovator001's profile

Rennovator001

4 posts in 507 days


#3 posted 01-05-2017 02:21 PM

Jerry,

Thanks for the reply. I have never seen an adjustable strap hinge. Do you have a picture of one? Too late anyway because all 18 of the straps and pintles have been forged and powder coated. The only options I can think of for adjusting the door is to mortise the top hinge deeper into the jamb or pack out the bottom hinge. I guess that the holes in the straps could be elongated to allow for some adjustment.

I agree that a 1/8” gap is tight. The 3×8 jambs have been jointed and planed into straightness and the doors will have SingCore panels as the cores.

View Rennovator001's profile

Rennovator001

4 posts in 507 days


#4 posted 01-05-2017 02:29 PM

JBrow

There will be three strap hinges. Not concerned too much about overall weight since the straps and pintles are 1/4” and the pintles are 5/8”. Don’t know how much the door is going to “sag” soon after installation from any slop between the pintle and eye of the strap. There will be some immediate wear because the thick power coating isn’t going to last long where the pintle and strap rub against each other.

I wonder if a really thin brass sleeve over the pintle would remove any sag after the paint wears off and the parts get used to each other.

View Rennovator001's profile

Rennovator001

4 posts in 507 days


#5 posted 01-05-2017 03:12 PM

If we assume that the pivot point for any sag will be the middle hinge, the drop at the lock edge will be 1.28 times greater than the movement at the top and bottom hinges. I’m thinking that I should raise up the lock edge of the door about 1/16 (1/2 of the gap between the door and frame) when I drill the holes and mount the strap hinges.

If the door hinges ever wear to the point that the door drops straight down, I can add shims under the strap where it rests on the pintle hinge.

View jerryminer's profile

jerryminer

923 posts in 1439 days


#6 posted 01-05-2017 07:48 PM



Jerry,

Thanks for the reply. I have never seen an adjustable strap hinge. Do you have a picture of one? Too late anyway ….

- Rennovator001

Maybe too late for this project, but here’s an example:

You can search on-line for “Adjustable Strap Hinge” and see lots more

-- Jerry, making sawdust professionally since 1976

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