Planning & EstimatingQuestion 546 of 700

A plan provides an attic access hatch of 20 in by 28 in for an attic that is over 30 square feet with more than 30 inches of headroom. What is the BEST correction?

a.Enlarge the opening to at least 22 in by 30 in
b.Reduce the opening because it is oversized
c.No opening is required for this attic
d.Only a scuttle in the garage is acceptable

Explanation

An attic access opening is required where the attic area exceeds 30 square feet and headroom exceeds 30 inches, and the rough-framed opening must be at least 22 inches by 30 inches. A 20 by 28 opening is undersized and must be enlarged. Option b is backward. Option c ignores the trigger. Option d invents a restriction. Provide the minimum opening so equipment can pass and the attic is serviceable.

Law Reference: 2025 California Residential Code §R807.1

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