Thermwell WV21H Vinyl Foam Wood Door Jamb Strip

Product Description

The THERMWELL WV21H is a white vinyl clad foam door jamb weatherstrip with a wood stop, designed to seal gaps along door frames and reduce air infiltration. The core is straight-grained wood wrapped with a foam and vinyl seal that compresses against the door when closed, blocking drafts. It installs directly onto an existing door stop or serves as a full door stop replacement. The wood component accepts paint or stain, making it compatible with finished interior and exterior door installations. This product is sold in a package of 12 units, suited for contractors and service pros handling multiple door openings in a single job.

This door jamb strip is used in residential and light commercial construction and weatherization work. It is appropriate for standard interior and exterior hinged door frames where the existing stop seal has deteriorated or was never installed. The foam and vinyl seal conforms to the door face on contact, maintaining a consistent compression seal around the full jamb perimeter. Its paintable and stainable wood backing allows it to blend with existing door trim without additional treatment.

Key Features

• Vinyl clad foam construction provides durable compression seal against door face
• Straight-grained wood backing accepts paint or stain for finished appearance
• Installs over existing door stop or replaces door stop entirely
• White factory finish works with standard interior and exterior door trim
• Package of 12 units supports multi-door project quantities

Compatibility

Designed as an OEM-style replacement or new-install weatherstrip for standard residential and light commercial hinged door frames requiring a foam and vinyl jamb seal with wood stop backing.

Installation Notes

Installation is typically performed by a carpenter, general contractor, or experienced DIYer working on door weatherization. No special tools beyond a hammer, finish nails, and a miter saw for length cuts are generally required. If replacing an existing door stop, remove the old stop and any remaining fasteners before fitting the new jamb strip. Wood can be primed and painted or stained prior to or after installation to match existing trim.