roof trusses

Truss Manufacturing

45+ years of experience. Short lead times. MiTek Systems. Certified by the Timber Products Truss Quality Audit Program. We always receive the highest rating!

Truss Manufacturing in Humboldt and the Surrounding Counties

Since 1974

Thomas Trusses has been manufacturing trusses in northern California for nearly 50 years, and it shows in our service and attention to detail.

We supply trusses throughout the entire North Coast: Humboldt, Del Norte, Mendocino, and Trinity Counties.

Quality Lumber

High-quality lumber and plates are where our manufacturing starts. Not all lumber technically graded the same is actually the same quality. That’s why we source from mills where we know we will receive clean, well-shaped lumber.

Highly Rated

We are certified by the Timber Products Truss Quality Audit Program, involving numerous in-house and third-party inspections. We always receive the highest rating, with comments such as, “These are the best-looking trusses I’ve ever seen,” and “Very well made trusses. Tight joints, good plate connection, rotation, and pressing.”

logo for timber products quality assessment

Our manufacturing team has extensive experience in all truss types, including:

  • Floor Truss
  • Hip Roof Truss
  • Mono Truss
  • Polynesian Truss
  • Attic Loft Truss
  • Gambrel Truss
  • Scissor Truss
  • Flat Roof Truss
  • Parallel Chord Truss
  • Porch Truss
  • Vaulted Truss
  • Cantilever Truss

On-site Checks

Once you are happy with your bid and ready to move forward with ordering the trusses, we’ll do a final confirmation process. For all jobs in our area, we visit your jobsite at no cost to you. We confirm the actual measurements as compared to the plans. It’s not uncommon for the building to be slightly different from the plans (an inch or so, here or there), and we want to make sure your trusses fit right! We are the only truss manufacturer in the area to make this free trip and confirm.

This level of accuracy in our confirmation process sets us apart. No other truss manufacturer serving our area provides this on-the-jobsite service. It is why local contractors particularly turn to us when they take on complex and semi-complex buildings. When you factor in the expertise of our technicians and the ultra-high-quality wood we use in our truss construction, it results in a stellar truss.

After confirmation, we start building the trusses and contact you to determine an exact delivery date.

Contact Us

Either email us at or use the form below.

The following information is helpful to send along:

  • Customer Name and (if applicable) Business Name
  • Phone Number
  • Email Address
  • Location of Project (needed to determine loading and delivery)
  • Roof Pitch (if not included in plans)
  • Special loading requirements (if not included in plans).