Jamb Up Kit 36" × 84"

Transform your doorway into an energy-efficient, draft-resistant entryway with the Jamb Up Kit 36" × 84" from M-D Building Products (Model 11825). Crafted from durable aluminum and flexible vinyl, this screw-on seal kit creates a tight barrier against drafts, moisture, dust and insects along the top and sides of your door frame. The three‐piece design—two 84" side strips and one 36" top strip—installs in minutes with included hardware and can be trimmed to fit perfectly using a simple hacksaw.

Ideal for residential and light commercial doors, this kit helps maintain indoor comfort by preventing air leaks and reducing heating and cooling costs. Its sleek black finish complements any décor, while the flat-design profile creates a snug, unobtrusive seal that stands up to everyday wear.

Key Features

• Protects against drafts, moisture, dust and insects
• Reduces energy loss by sealing the top and sides of your door
• Includes three pieces: one 36" head strip and two 84" side strips
• Can be cut to custom length with a hacksaw prior to installation
• Complete screw-on installation hardware included
• Durable aluminum & vinyl construction with matte-black finish

⚠️ WARNING: This product can expose you to Vinyl chloride known to the State of California to cause cancer and Lead known to cause birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.