Return to the Home Repair Forum | Post a Follow-Up

 o
Need general door information

Posted by elisabeth_pinelake (My Page) on
Thu, Dec 29, 11 at 9:52

I am trying to replace a door and would like some general advice from disinterested parties such as you all.

The door in question is between a fair sized, uninsulated entry area (about 10 x 10) which has the "real" door to the exterior (steel with a stained glass insert). The door that is being replaced leads from this area into my living room, so from an uninsulated to a living area. The current door is a nice wood stain (probably really wood) with an oval medallion made of glass. The glass medallion, which I have never liked, has been deteriorating for years and is now nearly ready to fall apart.

I priced getting the medallion replaced - $500. For the same cost, I might be able to have a new door installed. However, the current door is 35 x 79.5", not the standard 36 x 80".

I understand fiberglass offers the best insulation, and if I can do it fast enough, there is a small tax credit. However, can fiberglass be cut down by a whole inch?

Exterior wood doors are substantially more than fiberglass doors I have seen. However, they are not insulated. If I am going to get a wood door, how much difference in insulating value would there be between an exterior and an interior wood door, each with a glass insert?

A salvage place does have reasonable priced steel exterior doors with the frame. He says that if I buy the frame as well, it won't matter that the current door is slightly smaller than the standard. I understand the insulating value of steel is between fiberglass and wood - at least that's what Home Depot tells me about their doors. The salvage place just has the doors, with no technical info about them ( no warranties or anything).

The Home Depot guys seem very confident - but that doesn't always mean they know what they are talking about. The salvage guy had to ask someone else. So I thought I'd get some other advice. Thanks!


Follow-Up Postings:

 o
RE: Need general door information

"He says that if I buy the frame as well, it won't matter that the current door is slightly smaller than the standard".

That's dependent on the rough opening. If it is framed for a 3'0" x 6'8" standard, then it should be no problem. If the existing door was cut down to 35" x 79.5" because of a smaller rough opening, then it's a little more involved re-framing the opening to accept a standard 3/0


 o
RE: Need general door information

This door is an exterior door with an included threshhold?


Basically, rough openings for doors are 2" wider and 2" to 2&1/2" higher than the door itself.

To measure the rough opening, simply remove the interior trim and measure the width and height of the opening(stud to stud and floor to header(top stud).

If that opening is 37" wide, you will probably not be able to properly install a 36" door. If the RO is 37&1.2" wide, there is a good possibility a 36" door can be installed.

The reason for the wider RO is so shimming to get the door plumb and square can be done.

The height is less important. As long as the height of the RO is at least 3/4" higher than the door, there should be no problems.

Doors are actually simple to install. However, doing the install is very specific. If not done exactly as needed, the door will not work as designed. Having space between the building framing and the door framing is imperative to allow for those adjustments.


 o
RE: Need general door information

Thanks, very helpful.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Home Repair Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here