Thermwell SDB36WH Adjustable Storm Door Bottom White 36 in

Product Description

The THERMWELL SDB36WH is an adjustable door bottom seal designed for storm doors. It mounts to the bottom rail of a storm door and provides a flexible barrier against drafts, moisture, and debris at the door threshold. The sweep adjusts to fit door bottoms ranging from 1 inch to 1.5 inches, allowing installers to dial in a consistent seal without shimming or custom cutting. The 36-inch length covers standard storm door widths and can be trimmed for narrower openings. This type of component is routinely installed by general contractors, weatherization technicians, and experienced DIYers performing door maintenance or seasonal weatherproofing work.

The SDB36WH is suited for residential storm door applications where the existing door bottom seal has worn, cracked, or separated from the door rail. It is appropriate for new storm door installations as well as retrofit replacements on older frames. The white finish coordinates with standard white storm door profiles common in residential construction. Sold in a package of 12 units, making it practical for contractors servicing multiple units or carrying stock for repeat calls.

Key Features

• Adjustable fit from 1 inch to 1.5 inches to accommodate varying door bottom heights
• 36-inch length covers standard storm door widths and can be field-trimmed
• White finish suited for standard residential storm door profiles
• Designed specifically for storm door bottom applications
• Packaged 12 units per case, practical for contractor stock

Compatibility

Designed as a replacement or new-installation door bottom seal for residential storm doors with a bottom rail height between 1 inch and 1.5 inches.

Installation Notes

Installation is typically performed by a general contractor or experienced DIYer using basic hand tools. Close the storm door and confirm the door bottom rail dimension falls within the 1 inch to 1.5 inch adjustment range before installing. The sweep can be trimmed with a hacksaw or tin snips if the door opening is narrower than 36 inches. Ensure the door is stationary and any existing worn sweep is fully removed before fitting the new door bottom.