Glossary

Welcome to the Letter Four Glossary page! Here, you'll find clear and concise definitions of terms and phrases commonly used in our articles and the broader design-build and architecture industry.

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Blogs

Understanding Fuel Modification Plans in Los Angeles

Roof Structures, Details, and Materials for Achieving a 2-Hour Fire Rating in Type III Construction

Why Are Homes in California Still Built With Wood? Let’s Consider Type III CMU Block and ICFs Instead

Now Open: One-Stop Permit Center in West LA Aims to Speed Up Fire Rebuilds

Rebuilding Los Angeles: Navigating the Road to Recovery After the Wildfires

The State of California's Construction Industry: Challenges in the Rebuilding Effort

Building Fire Resistance for Remodels and Additions: Fortifying Existing Homes and Businesses

How California’s Insurance Commissioner is Helping Wildfire Survivors Recover

Recovering from Devastation: Property Cleanup and Debris Removal After Los Angeles Fires

Options for Rebuilding After the Fires: A Comprehensive Guide for Homeowners In Los Angeles

LETTER FOUR, INC. is a full service Design-Build firm offering the seamless integration of architecture and construction that addresses the diverse goals of our clients. Our team is committed to creating inspired, original works that are feasible and achievable given any project challenge. Our mission is to design and build great spaces with great people.

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Our Glossary of Design-Build Terms

Blogs

Understanding Fuel Modification Plans in Los Angeles

March 12, 2025

Roof Structures, Details, and Materials for Achieving a 2-Hour Fire Rating in Type III Construction

February 28, 2025

Why Are Homes in California Still Built With Wood? Let’s Consider Type III CMU Block and ICFs Instead

March 5, 2025

Now Open: One-Stop Permit Center in West LA Aims to Speed Up Fire Rebuilds

February 26, 2025

Rebuilding Los Angeles: Navigating the Road to Recovery After the Wildfires

February 17, 2025

The State of California's Construction Industry: Challenges in the Rebuilding Effort

February 5, 2025

Building Fire Resistance for Remodels and Additions: Fortifying Existing Homes and Businesses

January 31, 2025

How California’s Insurance Commissioner is Helping Wildfire Survivors Recover

January 30, 2025

Recovering from Devastation: Property Cleanup and Debris Removal After Los Angeles Fires

January 28, 2025

Options for Rebuilding After the Fires: A Comprehensive Guide for Homeowners In Los Angeles

January 22, 2025