Pemko 158A Offset Saddle Threshold — 5-1/2" Wide, 1/4" to 1/2" High, Mill Aluminum

The Pemko 158A is a commercial-grade offset saddle threshold designed for standard door openings where a low-profile, smooth transition between floor surfaces is required. Manufactured from mill aluminum, this threshold provides a durable, corrosion-resistant solution for high-traffic entryways. At 5-1/2 inches in width and a height range of 1/4 inch to 1/2 inch, the 158A accommodates modest variations in floor level while maintaining an accessible, low-rise profile. The offset saddle design creates a gentle step-over that helps seal the door bottom against drafts, light, dust, and moisture infiltration — making it a practical choice for commercial door openings of all types.

Institutional Grade Features & Benefits

• Offset Saddle Profile: The saddle shape bridges uneven floor surfaces on either side of the door opening, providing a clean, functional transition that supports door bottom weatherstripping performance.
• Low-Rise Height (1/4" to 1/2"): The 1/4" to 1/2" height range accommodates slight floor-level differences while remaining suitable for accessibility-conscious commercial installations.
• 5-1/2" Width: Generously sized to span the full door frame width in most commercial openings, ensuring complete coverage and a finished appearance at the sill.
• Mill Aluminum Construction: Extruded mill-finish aluminum delivers long-lasting durability, resistance to corrosion, and strength under heavy foot traffic — ideal for commercial and institutional environments.
• Pemko Quality: Pemko is a trusted industry name in commercial door thresholds, weatherstripping, and door bottom seals, with a product line engineered for real-world commercial applications.
• Versatile Application: Suitable for new construction and retrofit installations at commercial door openings where a low, offset saddle threshold is specified.

Technical Details