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Accessory dwelling unit under construction with engineered roof trusses installed on a backyard ADU garage conversion in California by Mike Walker Lumber Co Inc
California ADU Specialists

ADU Trusses

Trusses designed for accessory dwelling units, granny flats, backyard homes, and junior ADUs. Optimized for California ADU building requirements.

Investment Range Contact us for a quote
4.4/5 based on 35+ reviews

"When you're on your first project you have many questions. Mike Walker Lumber Co hit it out the park with their customer service and work. They made sure that all trusses matched the prints and walked me through the process. Delivery and communication was awesome. Customer for life!"

"Mike Walker Truss is an outstanding company. Their professionalism and timely delivery are unmatched. They provided a fair and competitive bid, beating out five other companies. They consistently met project deadlines and were always the first on-site at 7:00 a.m."

"First things first, Mike Walker Lumber is the best in the business. I've been a contractor in construction for 27 years and these guys stand out. Huge thanks to Alex and John for rushing my project and getting everything expedited to the field. You just don't get more professional than this crew."

"They are amazing! They actually took on a job that another company dropped the ball on, worked with me to fix the plans and got me expedited delivery since I had a deadline. I will be exclusively using them whenever manufactured trusses are allowed!"

"These guys are great, responsive, competitive on pricing and very flexible. I use them for all of our projects, they do great work with no revisions."

"Curtis and the entire team at Mike Walker Lumber are awesome. Some of the best folks to work with and extremely knowledgeable in roof and floor trusses. I would highly recommend and work with them on all of my future projects."

"Amazing customer service. Alex went extra miles to make sure I understood what I was missing in my ask for trusses. He worked closely with my engineers to complete the project successfully, on time and on budget."

"We've been working with Mike Walker Lumber for almost two years now and plan to keep using them. They're quick to respond, and the trusses have been consistently solid. Reliable team, I'd recommend them to others in the industry."

"The trusses were perfect, your service was quick and your delivery crew was the best. I will always get my trusses from you."

"When you're on your first project you have many questions. Mike Walker Lumber Co hit it out the park with their customer service and work. They made sure that all trusses matched the prints and walked me through the process. Delivery and communication was awesome. Customer for life!"

"Mike Walker Truss is an outstanding company. Their professionalism and timely delivery are unmatched. They provided a fair and competitive bid, beating out five other companies. They consistently met project deadlines and were always the first on-site at 7:00 a.m."

"First things first, Mike Walker Lumber is the best in the business. I've been a contractor in construction for 27 years and these guys stand out. Huge thanks to Alex and John for rushing my project and getting everything expedited to the field. You just don't get more professional than this crew."

"They are amazing! They actually took on a job that another company dropped the ball on, worked with me to fix the plans and got me expedited delivery since I had a deadline. I will be exclusively using them whenever manufactured trusses are allowed!"

"These guys are great, responsive, competitive on pricing and very flexible. I use them for all of our projects, they do great work with no revisions."

"Curtis and the entire team at Mike Walker Lumber are awesome. Some of the best folks to work with and extremely knowledgeable in roof and floor trusses. I would highly recommend and work with them on all of my future projects."

"Amazing customer service. Alex went extra miles to make sure I understood what I was missing in my ask for trusses. He worked closely with my engineers to complete the project successfully, on time and on budget."

"We've been working with Mike Walker Lumber for almost two years now and plan to keep using them. They're quick to respond, and the trusses have been consistently solid. Reliable team, I'd recommend them to others in the industry."

"The trusses were perfect, your service was quick and your delivery crew was the best. I will always get my trusses from you."

"When you're on your first project you have many questions. Mike Walker Lumber Co hit it out the park with their customer service and work. They made sure that all trusses matched the prints and walked me through the process. Delivery and communication was awesome. Customer for life!"

"Mike Walker Truss is an outstanding company. Their professionalism and timely delivery are unmatched. They provided a fair and competitive bid, beating out five other companies. They consistently met project deadlines and were always the first on-site at 7:00 a.m."

"First things first, Mike Walker Lumber is the best in the business. I've been a contractor in construction for 27 years and these guys stand out. Huge thanks to Alex and John for rushing my project and getting everything expedited to the field. You just don't get more professional than this crew."

"They are amazing! They actually took on a job that another company dropped the ball on, worked with me to fix the plans and got me expedited delivery since I had a deadline. I will be exclusively using them whenever manufactured trusses are allowed!"

"These guys are great, responsive, competitive on pricing and very flexible. I use them for all of our projects, they do great work with no revisions."

"Curtis and the entire team at Mike Walker Lumber are awesome. Some of the best folks to work with and extremely knowledgeable in roof and floor trusses. I would highly recommend and work with them on all of my future projects."

"Amazing customer service. Alex went extra miles to make sure I understood what I was missing in my ask for trusses. He worked closely with my engineers to complete the project successfully, on time and on budget."

"We've been working with Mike Walker Lumber for almost two years now and plan to keep using them. They're quick to respond, and the trusses have been consistently solid. Reliable team, I'd recommend them to others in the industry."

"The trusses were perfect, your service was quick and your delivery crew was the best. I will always get my trusses from you."

Quick Answer

What does ADU Trusses cost?

Mike Walker Lumber Co Inc designs and fabricates trusses specifically for accessory dwelling units (ADUs), granny flats, and backyard homes in California. We handle detached ADUs, attached ADUs, garage conversions, and junior ADUs (JADUs) with engineering optimized for California's ADU building codes. Typical ADU truss packages ship within 5–7 business days with competitive custom pricing.

Source: Mike Walker Lumber Co Inc Last updated: April 2026
About This Service

Engineered Trusses for California ADUs & Backyard Homes

ADU Trusses Built for California's Building Boom

California's ADU laws have made it easier than ever to build a second dwelling on your property. Whether you're building a detached backyard cottage, converting a garage, or adding a junior ADU within your existing footprint, Mike Walker Lumber Co Inc provides the engineered truss package to get your project framed quickly and permitted smoothly.

Since California streamlined ADU permitting, we've seen a surge in ADU truss orders across Sacramento, the Bay Area, and Northern California. Our engineering team understands the specific requirements: setback constraints that affect roof design, height limits that dictate truss profiles, and the various California ADU code provisions.

Interior view of a backyard ADU framed with custom roof trusses showing open ceiling structure and wall framing before sheathing by Mike Walker Lumber Co Inc

ADU Types We Serve

Detached ADUs (backyard cottages up to 1,200 sq ft), attached ADUs (additions to existing homes), garage conversions (new roof trusses when converting an existing garage), two-story ADUs and ADUs above garages, and junior ADUs (JADUs up to 500 sq ft within the existing home footprint). Each type has different structural requirements, and we engineer trusses accordingly.

Why Trusses Are Ideal for ADU Construction

ADUs are typically compact structures where every inch of interior space matters. Engineered trusses maximize usable interior volume by precisely controlling roof pitch, ceiling height, and structural spans. Trusses also install faster than stick-framing — critical on ADU projects where homeowners want construction completed as quickly as possible.

Backyard accessory dwelling unit under construction with custom engineered roof trusses framed on wall plates against a clear blue California sky by Mike Walker Lumber Co Inc
Free Estimates

Get a Free ADU Trusses Estimate

No hidden fees. No pressure. Just a transparent quote for your adu trusses project from a manufacturer you can trust.

10,154+ Projects
4.4 Google Rating
50+ Years Experience
Details

What's Included with Your ADU Trusses

01

ADU-Specific Engineering

Truss designs optimized for California ADU codes including height limits, setback constraints, and fire ratings.

02

Compact Fabrication

Trusses sized for ADU footprints — efficient material use means lower cost per square foot.

03

Permit-Ready Drawings

Stamped engineering drawings that satisfy California ADU permitting requirements.

04

Fast Delivery

ADU truss packages typically ship within 5–7 business days of approved drawings.

Mike Walker Lumber Co Inc truss manufacturing facility in Sacramento
Since 1974

Quality Trusses.
Delivered on Time.

From custom designs to on-site delivery, Mike Walker Lumber Co Inc handles every step of your truss project with precision and care. Over 50 years of experience serving Northern California builders.

Why Choose Us

Benefits of Working with Mike Walker Lumber Co

Every project gets our full attention — from first consultation to final delivery.

01

California ADU Code Expertise

We understand the specific height limits, setbacks, and fire separation requirements for ADUs in California.

02

Maximize Interior Space

Engineered trusses optimize every inch of ceiling height and usable volume in compact ADU footprints.

03

Fast Turnaround

Most ADU truss packages ship within 5–7 business days — keeping your project on schedule.

04

Affordable Pricing

ADU truss pricing depends on footprint size. Compact footprints mean lower total cost.

05

All ADU Types

Detached, attached, garage conversion, two-story, and junior ADU trusses — we've built them all.

06

Builder & Homeowner Friendly

We work with both professional ADU builders and homeowners managing their own projects.

Ready to Get Your ADU Trusses Project Started?

Send us your plans — we'll have a detailed quote back within 48 hours.

How It Works

Our Process

1

Share Your ADU Plans

Send us your ADU blueprints or design plans. We accept files from architects, designers, or plan services.

2

ADU-Specific Engineering

Our team designs trusses optimized for your ADU type, local setback rules, and height restrictions.

3

Fabrication

Your ADU trusses are built at our Sacramento facility with the same quality as our full-size home trusses.

4

Delivery

ADU trusses delivered to your property, ready for installation.

Got Questions?

ADU Trusses FAQs

01 How much do ADU trusses cost?

ADU truss pricing depends on size and complexity. A 600 sq ft detached ADU might cost varied pricing for the truss package depending on roof complexity. Contact us with your plans for an exact quote.

02 Can you build trusses for a garage conversion ADU?

Yes. Garage conversions often need new trusses to meet residential ceiling height and insulation requirements. We design replacement trusses that fit within the existing garage walls and provide proper ceiling height for a livable space.

03 Do you handle ADU trusses for two-story units?

Yes. Two-story ADUs and ADUs above garages require both floor truss systems and roof trusses. We provide the complete structural truss package for multi-level ADU construction.

04 What's the turnaround time for ADU trusses?

Most ADU truss orders ship within 5–7 business days from approved engineering drawings. Engineering design and approval typically takes 3–5 business days before fabrication begins.