Pemko EXT2A72 Sill Extender 72 in Mill Finish Aluminum

Product Description

The PEMKO EXT2A72 is a sill extender designed to widen or extend the base of residential door sill assemblies. Constructed from mill finish aluminum, this extender measures 72.5 inches in length and 2.5 inches in width, providing a clean, low-profile transition at the door threshold. It is used by finish carpenters, door hardware installers, and general contractors when an existing sill does not span the full width of a rough opening or when a replacement sill requires additional coverage. The aluminum construction resists corrosion and holds up in high-traffic entryway applications.

This extender is intended for residential door sill installations where the primary sill falls short of the required span or where architectural conditions call for an extended sill profile. It is suited for new construction and retrofit projects involving single-door entryways. Installers working on ADA-compliant threshold assemblies or low-clearance door systems may use this extender to meet sill width requirements without full sill replacement.

Key Features

• 72.5-inch length covers standard and wide residential door openings
• 2.5-inch width provides sufficient sill extension coverage at the threshold base
• Mill finish aluminum construction resists corrosion in interior and covered exterior applications
• Low-profile design at 1 inch height integrates with existing sill assemblies
• Sold individually as a single unit for targeted replacement or extension needs

Compatibility

Designed as an OEM-style extender compatible with all residential sill assemblies as indicated by the product designation. Consult the sill manufacturer specifications to confirm fitment before installation.

Installation Notes

Installation is typically performed by a finish carpenter or door hardware installer using standard hand tools and fasteners appropriate for the sill substrate. Before beginning, ensure the door is secured in an open position and any existing threshold hardware is fully removed or assessed for compatibility. Follow local building codes and manufacturer guidelines when installing threshold components in fire-rated or ADA-compliant door assemblies. Do not force-fit the extender to a mismatched sill profile, as improper seating can compromise the threshold seal.