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The PEMKO EXT2D72 is a sill extender designed to increase the bearing surface of residential door sills. Measuring 72 inches in length and 2 inches wide, this extender is fabricated from aluminum with a dark bronze anodized finish that resists corrosion and blends with common commercial and residential door threshold hardware. At 0.5 inches in height and weighing 1 pound, it installs easily without heavy tooling. This product is suited for use where an existing sill needs additional width coverage, typically as part of a door threshold assembly on an exterior or interior door opening.
The EXT2D72 is compatible with all residential sills in the PEMKO product line. It is used in residential door openings where the threshold sill requires lateral extension to close gaps, improve weathertight performance, or accommodate door frame geometry. Installers specify this extender when replacing or upgrading threshold assemblies on single-door applications. The dark bronze anodized finish matches standard PEMKO threshold hardware finishes, making it well suited for consistent appearance across a door assembly.
Designed for use with all residential sills in the PEMKO threshold product line.
This extender is typically installed by a finish carpenter, door hardware installer, or general contractor as part of a threshold assembly. Before installation, ensure the existing sill surface is clean, flat, and free of debris. Follow the door manufacturer and threshold manufacturer instructions for fastener placement. Consult applicable building codes for exterior door threshold and weatherstripping requirements in your jurisdiction.
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