Recommended for a wide range of Commercial applications. The stave lumber core offers good stability against warpage. Available as either nonrated or twentyminute fire-rated in a wide variety of hardwood and hardboard faces.
MAXIMUM SIZE
(Nonrated)
Single doors 4'0" x 10'0"
Regular and Double Egress Paired doors 8'0" x 10'0"
(20 minute rated)
Single doors 4'0" x 10'0"
Maximum size door/transom 4'0" x 10'0"
Paired Doors: Dependent on hardware used, up to 8'0" x 10'0"
Note: GP Firestop II meeting edges may be used for twenty-minute pairs in lieu of metal edges.
DOOR THICKNESS
13/8" (nonrated only) and 13/4" standard.
STILES
Minimum 11/4" (before trim) softwood edge. Solid hardwood outer edges matching (compatible with) the face veneer are available.
RAILS
Minimum 2" (before trim) mill option wood rails. Matching (compatible) wood rails available upon request.
BONDED SANDED CORE AND FRAME ASSEMBLY
A pre-glued, pre-assembled, sanded core made up of softwood strips not more than 21/2" wide, of one species of wood at a 6% to 9% moisture content. The end joints are to be tight and staggered in adjacent columns. Stiles and rails are glued to the core, and the assembled unit is then sanded prior to lay-up and pressing.
FACES
Pregraded: Hardboard, Medium Density Overlay, or Premium 3-ply veneered skins (minimum 1/50" veneer before sanding). Veneers available in a wide variety of species and cuts.
ADHESIVES
Core and frame assembly and veneer application all with Type 1, waterproof adhesives.
FACTORY MACHINING/DETAILING
Complete range of machining capabilities and detailing available. Rated doors must be in accordance with Warnock Hersey International, Inc. and National Fire Protection Association Standards (NFPA 80, latest edition). Lynden Door, Inc. recommends factory prefitting on all fire doors.
LIGHT OPENINGS
Cut-out area may not exceed 40% of the face or half of the door height to comply with the warranty. For 20 minute rated doors, the total visible area of single or multiple lights may not exceed 1296 sq. in. per leaf, with a maximum width of 36", or a maximum height of 54". All cut-outs must be 6" from the edge of the door or any other cutouts and/or hardware preps. Louvres are not allowed in 20 minute doors.
WARRANTY
Five years for interior use only. See warranty terms and conditions. Use of Lynden Door, Inc. CD300 doors in exterior applications is neither recommended nor warranted (except for MDO exterior doors available in this core only).
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| Attachment | Size |
|---|---|
| Color CD300.pdf | 1.33 MB |