Hello,
I am building a house with 2x6 walls with an additional 1.5 in of rigid foam planned for the sheathing.  Since the wall are extra thick, I need some help detail them since doors don't come with jams/sills that thick.

Any help or references appreciated.

Thanks,

Marvin

Maybe you would get more responses in either the ICF or SIPS forum. A lot of professionals who probably have good advice for you tend to hang out over there and don't ever peek into this forum.

griff7;

most any door supplier can order your door with extra thick jambs or you can extend the jambs yourself

griff7,

Mount your door to the inside. Doors swing in and if you mount it on the outside, you will not be able to fully open it. I made this mitake on our timber frame with 8" thick walls.

 

Patrick T

Not all doors open to the inside. Outswings tend to be more energy efficient and I am seeing more interest in that option. Best to mount the door to the side that it open to. Inside of inswings, outside for outswings. By the way, field made jamb extensions are not that hard to do, and in some cases, down right cheap compared to custom extensions from your door/window supplier.

Wes, For security reasons don't most outside doors swing in?

Most outside doors swing in. I've always considered it traditional, but I don't know why it is traditional. I suppose security could be part of the reasoning. Though I doubt that an inswing would be any more secure than an outswing.

I just posted a little photo gallery of good door details. I was driving through Maine and noticed some great ones, so I started shooting. A smart thing to do is to make a roof over a door or window. Sometimes the roof is as small as a drip cap molding above the casing, sometimes its as big as a porch.
Here's the gallery:

Doors That Don't Rot Have a Roof Over Them

One way to make a small roof, like an entablature bigger is to recess the door into the wall. You can do this by adding foam to the outside, which is a great idea, and you can also do it by making the walls thicker with built-in shelves or cabinets. Or both. If you can recess the door 10 in. into the house and put a 6 in. roof over it, you've got ythe equivalent to a 16 in. overhang. The door will never leak.

Fine Homebuilding did an article on a slick way to make extension jambs for windows in thick walls (http://www.taunton.com/finehomebuilding/how-to/articles/trimming-windows-in-basements-or-thick-walls.aspx?ac=fp). The author uses pocket screws and buiscuits to make a great looking, strong, and fast extention. You could use the same principals to build custom door extensions.

Dan
www.thegreenbuildingadvisors.blogspot.com