The Clopay Garage Door Bottom Seal 4" is a genuine replacement weather seal designed to close gaps along the bottom of Clopay sectional garage doors. Its wide 4-inch flap helps block drafts, water, dust, and insects while cushioning the door as it closes, improving comfort and helping reduce energy loss. Ideal for restoring worn or cracked weatherstripping, this replacement part is commonly used on Clopay residential garage doors and select light-duty commercial models that accept a 4-inch bottom weather seal in a standard retainer channel.
Installation is straightforward for most DIY users: remove the old strip, clean the retainer channel, then feed the new seal into the bottom retainer from one end and trim to the door’s width. For easier insertion, install in moderate temperatures and use a mild soap-and-water solution as a lubricant; secure the ends as needed to prevent shrink-back. Always disconnect the garage door opener and clamp the door to the tracks before working; do not adjust springs. To ensure compatibility, confirm your Clopay door uses a bottom retainer designed for a 4-inch weather seal that slides into the factory channel.