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The PEMKO 173A48 is a saddle-style door threshold made from mill finish aluminum, designed to bridge the gap between a door bottom and the finished floor surface. At 48 inches long, 2.25 inches wide, and 0.1875 inches high, this low-profile threshold is suited for interior and exterior door openings where a smooth, accessible transition is needed. The mill finish aluminum construction resists corrosion and holds up to repeated foot traffic in commercial and residential applications. It meets ANSI/BHMA A156.21 standards, making it a compliant choice for specification-driven projects. Installers working in commercial construction, renovation, or property maintenance will find this a straightforward, code-conforming solution.
The 173A48 is appropriate for standard 48-inch door openings in residential and light commercial settings. Its saddle profile seats flat against the subfloor or finished floor surface, providing a low transition point that accommodates most door bottom clearances. It is commonly installed beneath entry doors, interior passage doors, and utility room thresholds. The mill finish surface is compatible with most standard fastening and sealing methods used by door hardware installers and general contractors.
Designed as an OEM-style replacement or new-installation threshold for standard 48-inch door openings in residential and light commercial construction.
Installation is typically performed by a door hardware installer, general contractor, or experienced maintenance technician. Before installation, ensure the door is closed and the work area is clear of obstructions. The threshold is secured to the subfloor or sill using appropriate fasteners driven through pre-drilled holes; fastener type and spacing should follow the door manufacturer and local building code requirements. Do not overtighten fasteners, as this can bow the aluminum extrusion and affect door clearance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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