Rough opening for 24, 28, 30, 32, 34 & 36 inch door - Civil Sir

The rough opening (RO) for a 36-inch (36×80 inches) door is need to be 38-inches wide by 82 1/2 inches tall (38×82 1/2 inches). These dimension are enough for the RO to adjust the door and frame.

Armor Door 36 in. x 80 in. Fire-Rated Gray Left-Hand Flush Steel

Rough opening for a 30, 28, 24, 32 & 36 pocket door - Civil Sir

Doors: Measuring Rough Openings - Builders Surplus

Rough opening for a 30, 32 & 36 pre-hung door - Civil Sir

The Affair (Jack Reacher) by Child, Lee

U.S. Bases in Thailand During the Vietnam War and Agent Orange

Rough Door Opening Figure Sizes & Charts

2023 Townwide Summit

Sizes and Measure: A Guide to Interior Door Rough Opening