Plastic Equipment Pad for HVAC Systems, 18" x 38" x 3", Gray 12" Diameter + Product Details Size -

+ Product Details Size - 14"w X 22"h X 2"d (for duct opening measurement only)

only measure the "hole" in the wall/duct

actual front end outer dimensions are approximately 38 5/8" width X 36 5/8" height

+ Product Details Size - 16"W X 6"H is (for duct opening measurement only)

Crafted from heavy-duty reinforced steel

Plastic Equipment Pad for HVAC Systems, 18" x 38" x 3", Gray 12" Diameter + Product Details Size -PLASTIC EQUIPMENT PAD: Perfect mounting base for HVAC outdoor units and other outdoor equipment LIGHTWEIGHT AND DURABLE CONSTRUCTION: Made of injection molded polypropylene that is light and easy to maneuver but rugged for long lasting use even in extreme weather DRILLABLE DESIGN: Easy to secure equipment to the pad and subtle top texture helps prevent equipment from shifting OPTMIZED RIB PATTERN: Generous ribbing underneath the pad spreads the load