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                20 Minute Jamb

                Fire Rated Frames are Ferche Millwork’s complete line of fire rated wood door frames certified by Intertek Testing.

                Solid wood and wood veneered fire rated door jambs are certified with 20-, 45-, 60- and 90-minute ratings and are available in most wood species. The perfect hollow metal replacement frame for architects and designers to select, when a rated jamb is needed and the beauty of real wood is desired.

                • Specifications
                • Series
                • Species
                • Downloads

                F350E - door frame

                 

                 

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                F350E - door frame

                11/16” x 4-13/16”

                Veneered door frame set

                F350K - door frame

                 

                 

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                F350K - door frame

                11/16” x 5-3/8”

                Veneered door frame set

                F351E - sidelite frame

                 

                 

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                F351E - sidelite frame

                11/16” x 4-13/16”

                Veneered sidelite/borrowed lite window frame

                F351K - sidelite frame

                 

                 

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                F351K - sidelite frame

                11/16” x 5-3/8”

                Veneered sidelite/borrowed lite window frame

                F352 - sidelite frame

                 

                 

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                F352 - sidelite frame

                5/8” x 1-1/4” (stop)

                Veneered sidelite/borrowed lite window frame

                F355E - solid rabbeted jamb

                 

                 

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                F355E - solid rabbeted jamb

                1-1/4” x 4-13/16”

                Solid wood, 20 minute

                F355K - solid rabbeted jamb

                 

                 

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                F355K - solid rabbeted jamb

                1-1/4” x 5-3/8”

                Solid wood, 20 minute

                F359 - veneered rabbeted jamb

                 

                 

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                F359 - veneered rabbeted jamb

                1-1/4” x 3-3/4” (minimum)

                F365A - non rated solid rabbeted

                 

                 

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                F365A - non rated solid rabbeted

                1-3/16” x 4-9/16”

                F365E - non rated solid rabbeted

                 

                 

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                F365E - non rated solid rabbeted

                1-3/16” x 4-13/16”

                F365K - non rated solid rabbeted

                 

                 

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                F365K - non rated solid rabbeted

                1-3/16” x 5-3/8”

                F385E - solid flat jamb

                 

                 

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                F385E - solid flat jamb

                3/4” x 4-13/16”

                Solid wood, 20 minute

                F385J - solid flat jamb

                 

                 

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                F385J - solid flat jamb

                3/4” x 5-1/4”

                Solid wood, 20 minute

                African Mahogany

                 

                 

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                African Mahogany

                Sustainably harvested
                (good availability)

                Black Walnut

                 

                 

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                Black Walnut

                Up to 12' lengths
                (limited availability)

                Cherry

                 

                 

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                Cherry

                Up to 14' lengths
                (limited availability)

                Highest grade with
                lighter sapwood

                Clear Alder

                 

                 

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                Clear Alder

                Up to 10' lengths
                (limited availability)

                Hard & Soft Maple

                 

                 

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                Hard & Soft Maple

                Up to 16' lengths available

                Hickory

                 

                 

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                Hickory

                Rustic, heavy wood; more
                durable than red oak

                Knotty Alder

                 

                 

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                Knotty Alder

                Up to 10' lengths
                (limited availability)

                Natural Yellow Birch

                 

                 

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                Natural Yellow Birch

                Up to 12' lengths available

                Poplar

                 

                 

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                Poplar

                Select grade without dark
                streaks, for excellent
                stainable product

                Red Oak

                 

                 

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                Red Oak

                Best combination of good
                length structure and consistent colour, from the Appalachian Lumber region