M-d Building Products 91890 Kerf Door Jamb Weatherstrip 84in

Product Description

The M-D BUILDING PRODUCTS 91890 is a kerf-style door jamb weatherstrip designed to seal the perimeter of slotted door jambs against air infiltration, wind, water, rain, and dust. Manufactured from 100% reclaimed nontoxic material, it is free from harsh chemicals and carries an eco-friendly profile suited for green building applications. At 84 inches in length and finished in white, it fits standard full-height door jambs and installs directly into the kerf slot without adhesives or fasteners. Licensed contractors, carpenters, and skilled DIYers install this type of seal as part of door weatherization and energy efficiency upgrades.

This weatherstrip is appropriate for residential and light commercial door applications where an existing kerf-slot jamb profile is already present. It is well suited for exterior entry doors, side doors, and utility doors subject to seasonal temperature swings, moisture exposure, and drafts. The 84-inch length covers a standard door jamb leg. The white finish coordinates with painted door frames commonly found in residential construction. No tools beyond a utility knife for trimming are typically required for installation.

Key Features

• Kerf-style design inserts directly into slotted door jamb without adhesives or mechanical fasteners
• Made from 100% reclaimed nontoxic material, free from harsh chemicals
• Seals against wind, water, rain, and dust infiltration
• Guaranteed not to crack, fade, or peel over service life
• 84-inch length covers a standard full-height door jamb leg
• White finish suits painted residential door frames

Compatibility

Designed as an OEM-style replacement for kerf-slot door jambs on standard residential and light commercial exterior doors requiring a slotted-jamb weatherstrip profile.

Installation Notes

Installation is performed by carpenters, general contractors, or qualified DIYers working on door weatherization. Power tools are not required; a utility knife is sufficient for trimming the strip to final length. Ensure the kerf slot in the door jamb is clean and free of debris or old weatherstrip material before inserting the new seal. Follow local building energy codes where weatherization work is subject to inspection.

Technical Specifications

• Length: 84 inches
• Color: White
• Style: Kerf
• Material: 100% reclaimed nontoxic material
• Weight: 0.51 pounds
• Sold As: Each

Standard Information

• Brand: M-D BUILDING PRODUCTS
• Manufacturer Part Number: 91890