Buenos noches y’all,
I’m about to order my first door (marvin).
To a simple 2×4 wall with 1/2″ sheathing and drywall I am adding a 3/8″ air space between the siding and felt paper and 1/2″ of wall to wall insulation to the interior.
Marvin’s standard jamb is 4+9/16″.
How much should I ask for as a jamb extension?
7/8″? or a tad more (that’s a skotch extra for you Minnesotans) because everything expands a little when you put it together?
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Replies
I usually rip any extension jambs myself. That way I can make them exactly what I need.
From what I understand, you're total wall thickness will be 5-3/8"
( 3-1/2" 2x4, 1/2" rock, 1/2" ply, 1/2" interior insulation, 3/8" air space)
so a 7/8" extension should work, giving you 1/16" to play with.
Shep,
thanks again, you are my big responder this evening (another door jamb question, same room, different door). If I was working for someone else I'd beef out the jamb myself (if paid hourly) but I'm working for myself and the pleasure of having that door pop in at the right depth outweighs the $85 I'd save on DIYing.The question remains, are you from Minnesota and do you know what a "skotch" is or how to spell it?
My grandmother was from minnesota.
Skosh.
But she was Slovenian.A Great Place for Information, Comraderie, and a Sucker Punch.
Remodeling Contractor just outside the Glass City.
http://www.quittintime.com/
my grandmother was from Minnesota too, maybe we are related.....
or 6 degrees of skosh anyway...
5th ( at least) generation Jerseyan
skosh
and like someone else said, and I should have in my first post, Marvin will make the jamb width to anything you want. No need for extensions.
fine for windows, but on a door, I'd rather have marvin do it, so the thres is right and the hinges swing full on the inside.
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I think Marvin will build the door with the jamb at the dimension you spec. No extensions. That looks like #### usually anyway.
Do the math; add it up.
Hey Eric,
that's what I meant in the first place. As a novice I don't know if I should only order for the total dimensions or add a little (1/16?)
Go ahead, live dangerously, add a sixteenth. ;-)
Actually it's a better to be a skosh fat than thin. A sixteenth is only a thirty-second on each side so how could it be a bad thing?
absolutely!Heck, add a schosh on each side.That would have been nice on that mattress when she said, move over a schosh
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Yes, what HVC said.
Live it up, add an eighth if you like.
Much easier to take a little off than have to add some back on.
Eric
I just might even add 3/16 by gum!!Eric and Shep: I KNOW Marvin will build it as I want, the question is what do I want! (and thanks for your help)
If the wall is out of plumb, you might need even more than a schosh - maybe even a tic's worth
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
I'm back.I'm adding several scoshes; actually Marvin is adding them but they refer to them as "wee bits".I never mentioned that this is an outswing, eventually to be enclosed within a porch extension.Thanks everybody now I can go forward with confidence and when I fall on my face I'll know it was your fault!
Usually, the door unit registers off of the outside of the building when it is set. And usually, exterior doors open inwards.
So if you have to add jamb extenders, you might end up with a hinge point halfway through your wall, and a door that only opens halfway.
No problem if it can only open 90 degrees because of an abutting wall. But if you want the door to open a full 180 degrees flat against the wall it is hung in, order a custom, extra-deep jamb, with the hinge pins sitting out clear of the interior wall finish.
AitchKay
Seems you realize all the answers to your question, measure or add up what the jamb depth would be and add 1/16, to add an 1/8 wouldnt be bad either cause as you probalbly already know that more often than not the standard jambs seem to come up a little short, you can plane a little off if its too deep. Trust your instinct seems like you know what to do, just dont plan on adding to the inside yourself, that on exterior doors dosent work out too well because the latch rubs on the jamb as you close it and you may not be able to open it fully to fit large stuff through the door.