Thermwell A59/36H Aluminum Vinyl Door Bottom 36in

Product Description

The THERMWELL A59/36H is a door bottom weatherstrip designed to seal the gap between a door and its threshold. Constructed with an aluminum body and a vinyl seal insert, it measures 1-5/8 inches in height and 36 inches in length. The aluminum extrusion provides structural rigidity while the vinyl sweep creates a compression seal that blocks drafts, dust, and moisture infiltration. This type of product is installed by general contractors, handymen, and building maintenance technicians as part of weatherization or energy-efficiency work on exterior door assemblies.

The A59/36H is suited for residential and light commercial exterior door applications where a low-profile bottom seal is needed. The 36-inch length fits standard single door widths and can typically be trimmed to fit narrower openings. The silver finish aluminum construction is appropriate for painted or natural aluminum door frames common in residential construction and renovation projects.

Key Features

• Aluminum body with vinyl seal insert for a durable, weather-resistant bottom seal
• 1-5/8 inches in height provides adequate coverage for threshold gaps on standard exterior doors
• 36-inch length fits standard single door widths and can be field-cut to size
• Silver finish aluminum coordinates with common door hardware finishes
• Blocks drafts, dust, and moisture at the door bottom

Compatibility

Designed as a standard replacement or new-installation door bottom seal for residential and light commercial exterior doors with a 36-inch width.

Installation Notes

Installation is typically performed by a carpenter or general maintenance technician using basic hand tools including a hacksaw for field cutting, a drill, and appropriate fasteners. The door should be closed and secured before measuring and marking the mounting position. Follow the door manufacturer guidelines for fastener placement to avoid compromising the door face. Measure twice before cutting, as aluminum extrusions cannot be extended once trimmed.