20" X 20" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 21" Width X 21" Height] 10in diameter + Product Details Size -

+ Product Details Size - 32"w X 22"h is the size for the duct opening measurement only

actual front end outer dimensions are 17

+ Product Details Size – 12" x 32" or 32" x 12" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 24 5/8" width X 22 5/8" height

20" X 20" Sound Rated Steel Access Panel Felt Covered Door For Concealed Wall / Ceiling Application With Slotted Lock - [Outer Dimensions: 21" Width X 21" Height] 10in diameter + Product Details Size -+ Product Details Size 20" X 20" is the size for the drywall opening measurement only, actual front end outer dimensions are 21" Width X 21" Height High Quality High grade steel construction. Design 1mm galvanized steel material with sleek, shiny, durable white powder coat finish for an attractive look & high durability corrosion protection 15mm medium density fibreboard with felt cover and rubber sealing between the door and frame for tight security.