Independent vinyl, wood, and fiberglass replacement window researchExplore the installer directory
Replacement Window GuideFind a Local Pro

Window tool

Egress Window Check

Screen an opening against the IRC R310 emergency escape rules for net clear opening, minimum height and width, and sill height.

Screening estimate only.A licensed window installer and your local building code are authoritative for final sizing, egress compliance, and product selection. Confirm every result with a pro and your local code.

Screening result

Enter opening dimensions to screen against IRC R310.

    Fine Print and Sources

    Screening estimate only. These tools use only the values you enter and simple planning math. A licensed window installer and your local building code are authoritative for final sizing, egress compliance, product selection, and pricing. Confirm every result with a pro and your local code.

    This check screens an opening against IRC R310 emergency escape and rescue opening rules: a minimum net clear opening of 5.7 sq ft (5.0 sq ft for openings at grade level), a minimum net clear height of 24 inches, a minimum net clear width of 20 inches, and a sill height no more than 44 inches above the floor. It uses your entered width and height as the net clear opening, so it is a screen only. Your local code and adopted amendments are authoritative.