20" X 20" Is The Size For The Duct Opening Measurement Only, Actual Front End Outer Dimensions Are 21" Width X 21" Height HVAC Premium has been providing superior in quality service for many many years. Our access panels provide immediate access to any of your plumbing, electrical, or construction needs while providing a clean and smooth looking aesthetic and design to your home and can be painted to match your space. We have many different types of access panels including fire rated, sound proof, aluminum, galvanized steel, gypsum/drywall, and plastic models with various locking mechanisms like tumbler locks, slotted locks, allen key locks, and push-locks. Our products are second to none, and we've helped numerous contractors, DIY projects, and home improvement remodeling specialists complete their masterpiece. If you are looking for a top of the line unit to enhance your project look no further than HVAC Premium!Wide Front End Overlap - 1.375" Inches.Aesthetic - Improve the look of your home with an access panel that hides your cables, wires, pipes, and ducting while providing easy entry to critical points in your wall or ceiling. Heat Resistance - Resistant to heat so you can have fire protected and secure access to key points in walls and ceilings. Rigid Aluminum Built - Strong and sturdy aluminum built to last. Dust Proof - This Access Panel is sealed with rubber making it dust free How To Measure An Access Panel: Overall Size: MEASURE the size of the DUCT OPENING. Do not measure the old access panel. If your duct opening is 14" wide by 14" tall, order a 14x14.
