Alexander Lumber Co. owns and operates a component manufacturing facility serving Illinois and the surrounding states. This plant manufactures roof trusses and floor trusses for buildings ranging in complexity from a simple garage to large multi-family projects. Our team specializes in creating a problem-free component product. From quoting to invoicing, each step throughout the process is reviewed for accuracy. Our manufacturing facility is third party-inspected for quality, and if there are any issues with our product, you can rest assured we will address it immediately.


Wood Trusses

We can produce roof trusses from 2’-0” to 80’-0” long.

Our multiple roof truss assembly stations allow us the ability to produce multiple projects at one time, and for those conditions that require it, we do stock high-grade, machine stress-rated (MSR) lumber.

Floor Trusses

Our floor trusses can measure up to 24” overall max depth to 38’ max leng

Our Services



Alexander Lumber offers more than 100 years of component design experience for residential, multi-family, light commercial, and agricultural building projects. Experts in problem-solving “component systems” for your construction project, we address architectural features for the owner, installation for the carpenter, municipal needs for the city, and cost for the builder.

Field Support

We provide thorough field support coverage for your project through our extensive outside sales force.
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Ken Tudor


We offer crane services for our trusses throughout the greater Chicagoland area. Our truss roll-off delivery area extends from northern Indiana throughout Illinois into eastern Iowa and southern Wisconsin.
Mechanical engineering

Our Process

With Alexander Lumber, you’ll get the best in component design and product. Once you contact us for a quote, your sales representative will communicate the lead time, and we’ll get started quoting and designing your project. Once the design is finalized and you sign off on it, we begin the manufacturing process; again, our lead times will be communicated to ensure you receive your components where you need them, when you need them.

Our Capabilities by Location 

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Cortland, IL

  • Roof Trusses
  • Floor Trusses
Portrait of an engineer holding a blueprint at a construction site

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