construction cores colors

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The letters GD, HD, BD, or BDC should be put after the lock function. EXAMPLE: ND53BD GD = Schlage SFIC core HD = Construction core BD = Less core BDC = Plastic temporary construction core
This only applies to the full size interchangeable cores.  The SFIC mortise cylinders have part numbers for housings with construction cores (Disposable and Keyed).  Simply add (-ICX) to the end o...
A lock specified by a cylinder suffix BDC will be supplied with a disposable small format construction core, see Figure 1 below.  There is no metal key but instead the BDC cylinder has a ...
A small format disposable core is used as a SFIC construction core that is for low security applications and can be thrown in the waste bin after use.
Use the cylinder suffix 'T' for full size interchangeable core or the cylinder suffix 'HD' for small format interchangeable core, see Figure 1.  Small format also has a disposable core option ...
Any SFIC core will operate in the C987.  Specifically, the Schlage temporary cores are the 80-035 GRN and 80-035 BRN.
These references are from an old and outdated SDI 100 specification.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 designat...
Yes, 4" butt hinge preparations are available as an option on hollow metal doors and frames as noted below: Hinge type: square corner with commercial hole pattern. Preparations for radius c...
No, steel stiffeners are not required in Hollow Metal doors, they are one of many optional core available. Per ANSI/SDI A250.8 and ANSI/HMMA 867, core construction are optional o...
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 ...
Insulated Core Options: Steelcraft L-Series doors are available with the following 2 optional insulated cores: Polystyrene slab - this core is available in non fire rated and fire rated doors...
Levels and Models (covered in ANSI A250.8 (SDI 100) "Recommended Specifications for Standard Steel Doors and Frames") are SDI term aid in the selection and specification pr...
Excessive premature frame rusting is caused by improper jobsite installation practices and most likely caused by the following circumstances: Grout: Frames are grouted in place using incorrec...
Surface Mounted door closers are the most durable and common type of door closer. Mounted to the surface of the door or frame Can be configured (through installation or arm type) to meet a...
All lock cylinders on a specific project are operable by a special "project key".  Duplicates of this key may be assigned by the building contractor to workmen and subcontractors as required. ...
The following anchors are approve for use in FEMA Tornado Resistant openingsMasonry walls:Jamb anchors - Wire masonry anchorsSill (base) anchors - Adjustable base anchorsExisting walls:Jamb an...