Construction Rate Guide — U.S. Coverage 2025 Construction Insights Rate Guide Small Frame Projects with CAT exposure +5% to 20% Small Frame Projects Non-CAT Flat Large Frame Projects with CAT exposure How catastrophic (CAT) areas are defined continues to broaden to +5% to 20% underwrite the increased prevalence of wildfire, convective storm and flood events. Large Frame For any frame project, capacity remains limited, with underwriters Builders Risk Projects Non-CAT reserving capacity for best-in-class projects with well-qualified -5% to Flat developers and contractors and above-average compliance and site security protocols. CLT The use of technology to mitigate jobsite risks, such as water leak (Mass Timber) detection devices, fire protection systems, video surveillance and engineered wood security alarms, continues to be a focal point for underwriters. product +5% to 15% Non-Frame with CAT exposure +5% to 15% Non-Frame Non-CAT Flat With CAT exposure Contractors +5% to 20% Similar to builders risk, insureds with tighter security controls to Equipment mitigate theft-related claims are experiencing more favorable rates. Non-CAT Flat With CAT exposure Installation +5% to 20% Rates have stabilized for non-CAT-exposed sites. Expect some Floater rate relief for CAT exposure. Non-CAT Flat 9