Architectural · A-QH7SG

Typical Exterior Door Threshold Details

Materials

Elements

Doors Balconies Floors / Slabs Connections / Plates

About this detail

These details illustrate threshold conditions for exterior doors transitioning between interior flooring finishes and exterior concrete slabs. Condition A features interior tile or walk-off mat matching a Pemko 229 threshold for four-and-a-half-inch frames, or a Pemko 227 threshold with an elevated Pemko floor plate 190 for six-inch frames. Condition B shows interior carpet adjacent to a Pemko 158 threshold at four-and-a-half-inch frames or a Pemko 2727 threshold at six-inch frames. Condition C details flush interior and exterior concrete slabs using a Pemko 171 threshold for four-and-a-half-inch frames or a Pemko 172 threshold for six-inch frames. Maximum tolerances of one-half inch are indicated for threshold height transitions. General notes require wider thresholds for frames exceeding six inches, slab elevation verification for accessibility compliance, and balcony threshold depths matching the glazing system framing.

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