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What Size Opening for a 24 Inch Door?

Published in Door Rough Opening 2 mins read

Based on the provided Babcock-Davis Rough Opening Chart, the required rough opening width for a 24-inch wide door is 24-1/4 inches.

The overall size of the rough opening (width and height) depends on the specific height of the 24-inch door you are installing. The chart provides exact rough opening sizes for common 24-inch door dimensions.

Rough Opening Chart Examples for 24-Inch Doors

The following table, derived from the Babcock-Davis Rough Opening Chart, shows the recommended rough opening sizes for specific 24-inch door dimensions:

DOOR SIZE (Width x Height) ROUGH OPENING (RO) (Width x Height)
24 x 24 inches 24-1/4 x 24-1/4 inches
24 x 30 inches 24-1/4 x 30-1/4 inches

As seen in the chart:

  • For a 24-inch wide by 24-inch high door, the recommended rough opening is 24-1/4 inches wide by 24-1/4 inches high.
  • For a 24-inch wide by 30-inch high door, the recommended rough opening is 24-1/4 inches wide by 30-1/4 inches high.

In both cases for a 24-inch wide door, the rough opening width is 24-1/4 inches. The rough opening height is the door height plus an additional 1/4 inch.

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