Rough Opening

Definition

A rough opening is the clear dimensions of the framed opening that must be provided in a wall to accept a given door or window unit.

Purpose

The purpose of a rough opening is to ensure that the door or window unit fits correctly within the wall, allowing for proper installation and alignment.

Examples of Use

• Carpenters frame rough openings in new construction to prepare for the installation of windows and doors.
• Remodeling projects often involve creating new rough openings to accommodate upgraded or different-sized doors and windows.
• Builders use specified rough opening dimensions from door and window manufacturers to ensure a proper fit.

Related Terms

• Framing: The process of building the structure of a wall, including rough openings.
• Header: A horizontal beam above a rough opening that supports the load above.
• Jamb: The side post or surface of a door or window frame.

Notes

Accurate measurement and framing of rough openings are essential to ensure that doors and windows fit securely and function properly once installed.