Commercial Door Talk! at

Commercial Door Talk is a discussion area dedicated to commercial doors, frames, and hardware. You can ask a question, provide an answer, or just browse the posts. A preview of some of the posts are below. You can see a list of Features for Commercial Door Talk in the Gen Info link above. You will also find our Privacy Policy there. The How To section will give you some tips on how to use this part of our site. It also explains the Groups feature in detail.

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Steve Behrens
LeadLined.gif Steve in Hollow Metal Doors
Lead Lined doors & frames. Usually you will use a wood door but you can get a lead lined hollow metal door. 1/16" thick lead is "standard" which is 2 pieces of 1/32" lead either side of the wood door core. 1/8" ( 2 pieces 1/16" ) is also used quite often. Common options range from 1/32" to 1/8". Doors will remain 1 3/4" thick with up to 1/8" lead in them. Over that and the door thickness starts to increase so you need a special frame for a non standard thickness door in this case.
Steve Behrens
DoubleActing.gif Steve in Hollow Metal Doors
The difference between Double Acting doors and Double Egress doors. These 2 terms sometimes cause confusion if you are not in the commercial door industry so let's clear it up! Double acting means the door swings in AND out...versus in OR out for a standard (single acting) door. You'll see this in a lot of restaurants going into the kitchen. This can be a single door or a pair of doors. You'll need a special frame for this application called a Cased Open frame.
Steve Behrens
kddwanchor.gif Steve in Hollow Metal Frames
A question sent to us by email: Need to install a new frame in an existing wood stud opening that is already drywalled. I can get the frame square and plumb but when I hang the door on the hinge jamb it wants to move. The area is already carpeted and the owner does not want any thresholds so a reverse base anchor is not the answer for securing the jamb. Answer: You would have had to use a knockdown drywall (kd dw) frame as you are going into a stud wall with the drywall already up.
Steve Behrens
Steve in HM Frame Anchors
A question sent to us by email: When do you use a welded Z anchor?
Steve Behrens
Steve in HM Frame Anchors
A question sent to us by email: What type of fastener is most commonly used to anchor the feet of a welded hollow metal frame to a concrete slab?
Steve Behrens
Steve in Specifications
A question sent to us by email: Do they make a 3/4 hr rated 9' tall x 3' Hollow Metal door provided it has a 9sf 3/4 HR rated glazing area?
Steve Behrens
Steve in Hollow Metal Doors
A question sent to us by email: How do you seal the gap on double doors that are both active?
Steve Behrens
Steve in Hollow Metal Frames
A question sent to us by email: What is the size of concrete rough opening for a door that is 3'-6" wide x 7'-0" high with 2-1/4" Jambs. Common sense would be to add the door dimensions to the jambs so that the width is 3'-10 1/2" x 7'-2 1/4". However, is there an adjustment that needs to be made for tolerance associated with the door jambs? We have been specifying a width of 3'-10" which is being questioned by our customer.
Steve Behrens
Steve in Hollow Metal Frames
A question sent to us by email: I have always called for grout at hollow metal door frames in masonry walls. I am now not sure that they are required. Obviously, we sometimes have rated openings, non-rated openings, and acoustical criteria as well. The matter has now come up where we have a door frame straddling a masonry wall with a gypsum wall board partition furred onto the CMU. Therefore there may be concern for the moisture in the grout deteriorating the gypsum wallboard. Feedback?
Steve Behrens
Steve in Comm Door Talk
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Total Posts: 40
Total Groups: 16
Total Members: 7
Total Comments: 24
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