| 摘要 |
A door frame which employs jambs or jamb assemblies which are essentially devoid of wood and other materials which are susceptible to being damaged by the affects of weather. The side jambs are fabricated of e.g. extruded aluminum moldings which extend an underlying floor/substrate to the header, and can be fabricated from a common-profile extruded aluminum molding. The jambs can also have an e.g. polymeric insert assembled thereto which can receive nails or screws, optionally without pre-drilling, in a similar manner as wood receives nails or screws. The jambs can further include a nosing either integral with, or snap assemblable thereto. The molding can further include a nail fin kerf which accepts a rigid or a flexible nailing fin.
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