16" X 16" Steel Flush Access Panel Door for Wall/Ceiling Application with Slotted Lock, Mud-in Flange - [Outer Dimensions: 17" Width X 17" Height] Access Door actual front end outer dimensions

actual front end outer dimensions are 21" width X 21" height

The 45-degree louvers reduce system stress while optimizing performance

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 25" OR 25" x 20" duct opening (measured at the opening)

14" x 8" Decorative Wood Air Vent HVAC Duct Cover Grille - Polished Finish Red Oak Wood - 2-Way Air Direction

16" X 16" Steel Flush Access Panel Door for Wall/Ceiling Application with Slotted Lock, Mud-in Flange - [Outer Dimensions: 17" Width X 17" Height] Access Door actual front end outer dimensions+ Product Details Size 16" X 16" is the size for the drywall opening measurement only, actual front end outer dimensions are 17" Width X 17" Height High Quality High grade steel construction. Flush Access Door Is a type of door or panel designed to provide access to concealed spaces, such as HVAC systems, electrical components, plumbing pipes, or other utility areas. Unlike traditional doors that have visible frames and hinges, a flush access door is