How are Butt Hinges located?
Steelcraft locates all butt hinges from the top of the door to the centerline of each hinge as standard practice:
Locating hinges to the center line of the hinge keeps all hinge locations the...
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Are astragals required on 3 hour rated pairs of doors?
All 3 hour fire rated pairs of doors do require an astragal when used without a removable hardware mullion.
Pairs of doors with removable hardware mullions are treated and listed as 2 single doors. P...
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Does Steelcraft offer the doors and frames galvanized or galvannealed?
Yes, Steelcraft does offer optional A60 and A40 Galvannealed, and G90 Galvanized steel on doors and frames.
Galvannealed A60 and A40:
A60 coating designation - optional on all doors and frames.
...
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What are the door cores A, B, C, D, E & F per SDI 100?
These references are from an old and outdated SDI 100 specification. The new specification SDI 100 ANSI A-250.8 does not contain letter designations for core material.
Core constructions designation...
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What Steelcraft doors can be prepped for a Von Duprin InPact device?
Steelcraft L-Series and T-Series doors are available (as an option) factory prepared for the Von Duprin InPact exit device. ...
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What is the standard downsizing for a door leaf when using continuous hinges?
Doors require special downsizing for continuous hinges. The amount of downsizing depends on the hinge specified (manufacturer and type) and the hinge application (Full Mortise versus Full Surface vers...
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What is a Dutch Door?
A Dutch Door is a door having two separate leaves, hung one over the other:
Usually equipped so that both leaves can be operated
Usually in single doors applications but sometime...
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What is the maximum glass light size on a 3 hour (180 minute) fire rated door?
Maximum glass light sizes for 3 hour fire doors is as follows:
Wire glass - not approved for use in 3 hour fire doors.
Ceramic glass:
UL & ITS/WH allow one (1) light with 100 square inches...
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What is an astragal?
An Astragal is an applied molding attached most commonly to the meeting edge of doors to:
Protection against weather conditions
Minimize the passage of light between the doors
Retard the passage ...
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What is thermal bow?
Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...
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