Contacting Rosboro

Please feel free to contact us at one of the following numbers if you have further questions about our company and our products:

Rosboro Corporate Office:

(541) 746-8411

Rosboro Sales:

(888) 393-2304

Technical Support:

(877) 457-4139


Map and Driving Directions to Rosboro

Map/Directions to Rosboro


Map and Driving Directions to Rosboro Vaughn Plant

Directions to Vaughn Plant

Frequently Asked Questions

Our Company and Products

You can learn more about Rosboro by reading this selection of common inquiries we receive from members of the building community. Our team appreciates the ongoing dialogue we have with valued clients and those who have yet to discover the wide array of respected Rosboro products.

Click on a section below for a list of specific questions:


Questions About Rosboro

Who owns Rosboro?
Is Springfield the only Rosboro operation?
What is Rosboro's philosophy with regard to its employees?
Can I invest in Rosboro?
Does Rosboro donate to the community?
Who can I contact for more information about Rosboro?
How do I apply for a job at Rosboro?

Q: Who owns Rosboro?

A: The Rosboro story begins in 1890, when Thomas "Whit" Whitaker Rosborough started running his own sawmill, the Caddo River Lumber Company in Rosboro, Arkansas. In 1939 he moved to Springfield, Oregon, with a team of loyal employees. Trading his recently purchased coastal-range timberlands for holdings in the McKenzie River Valley, Whit and crew started constructing Rosboro's first sawmill. The first board rolled through the state-of-the-art facility in June of 1940. Today the company manufactures a respected family of products ranging from studs and dimension lumber to a complete line of glulam. 

After 76 years the Rosboro ownership determined it was time to sell the company. The Timberlands were sold to Campbell Global and the manufacturing operations were sold to Wynnchurch Capital, LLC,. Wynnchurch is headquartered in the Chicago suburb of Rosemont, Illinois, with offices in California and Canada. The company was founded in 1999, and is a leading middle-market private equity investment firm. Wynnchurch's strategy is to partner with middle market companies in the United States and Canada that possess the potential for substantial growth and profit improvement. Wynnchurch Capital manages a number of private equity funds with $2.1 billion of capital under management. For more information, please visit: www.wynnchurch.com

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Q: Is Springfield the only Rosboro operation?

A: Rosboro manufactures a wide variety of products in seven facilities, including studs, veneer, plywood, and laminated beams at our Springfield and Vaughn plants.
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Q: What is Rosboro's philosophy with regard to its employees?

A: Dedicated employees are a company's best asset and Rosboro is proud to have many second- and third-generation employees. We have always provided a safe workplace for our employees and we put great emphasis on these safety programs, as well as on employee health programs. Management involvement and team efforts by employees continue to keep the company's accident rates and injury levels far below the industry average. It is Rosboro's goal to offer our employees one of the best benefit packages in the industry and have been providing family wage jobs and American made building products since 1939.

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Q: Can I invest in Rosboro?

A: Rosboro is a privately held company and does not seek outside investors. For more information, please contact our Chief Financial Officer at (541) 746-8411.
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Q: Does Rosboro donate to the community?

A: Rosboro has a team that reviews donation requests and makes suggestions regarding which organizations to support. We prefer to support groups in our local communities, mainly in the McKenzie River and Southern Willamette valleys.

Charitable groups we have supported include the Shelter Care, local schools, the Child Center, the McKenzie-Willamette Hospital Foundation's Festival of Trees, and Junior Achievement, 4-H, the Boy and Girl Scouts, Relief Nursury and Jasper Mountain.

Please contact our Director of Corporate Giving at (541) 746-8411 regarding donation requests.
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Q: Who can I contact for more information about Rosboro?

A: Please contact our Director of Corporate Communications at (541) 746-8411.
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Q: How do I apply for a job at Rosboro?

A: All available positions are listed on the Jobs & Benefits page of our website and with the Oregon Employment Department. Please check with the local employment office or online to see what positions are currently open.
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Questions About Engineered Wood Products

What is camber?
Why is there a crack in the beam?
Why does it say "TOP" on some of your glulam?
Can holes be drilled in glulam?
Can glulam be left exposed to the elements?
Are pressure treated glulam products available from Rosboro?
What are the differences between "wet-use" and "dry-use" conditions?

Q: What is camber?

A: Camber is a "crown" purposely built into a glulam at the time of manufacture. It is most often desired in long span applications to counteract deflection. Camber does not affect the strength of the beam. Residential stock beams are normally made in either 5000' radius or zero camber, while other engineered wood products are zero camber. Most residential spans are less than 24', and the camber derived from a 5000' radius falls inside industry accepted manufacturing tolerances for zero camber beams. These glulams are increasingly popular because they contribute to a "flat" framing system without humps.

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Q: Why is there a crack in the beam?

A: Glulams, like all wood products, are subject to seasoning checks, or cracks. This is a natural occurrence due to the shrinking of wood fibers as moisture is lost to the surrounding atmosphere. Often checks will be found near the first glue line, as the bottom lamination has more surface area exposed to the air. Also, a check will normally be found near a glue line where it meets resistance from another lamina. Because of its lower moisture content, glulam will tend to experience less seasoning checking than solid sawn timber, and rarely is the strength of the member compromised. Click the folowing link to look at the APA EWS Technical Notes on this subject ("Checking in Glued Laminated Timber") in the technical reference section of this website.
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Q: Why does it say "TOP" on some of your glulam?

A: For the most efficient use of the resource, standard stock glulams are normally manufactured with an "unbalanced" lay-up. This means they are engineered with a tension lam (the strongest and most expensive laminate) only on the bottom. It is important to install the beam with the TOP stamp facing skyward. Glulam Characteristics.
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Q: Can holes be drilled in glulam?

A: Yes. Glulams are engineered with specific laminations of varying strength and stiffness properties, therefore certain areas or zones of the member need to be protected. Click on the following link to look at the APA EWS Technical Note on this subject (Field Notching and Drilling of Glued Laminated Timber Beams) found in the technical reference section of this website.
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Q: Can glulam be left exposed to the elements?

A: Untreated glulam that is normally used in residential construction is not recommended for exposed conditions. Although waterproof adhesives are used in the manufacture of the beam, Douglas fir and Southern yellow pine wood species react unfavorably if not properly cared for, and insect infestation and decay may occur. Pressure treatment to American Wood Preservers Association (AWPA) standards, use of naturally decay-resistant wood species such as Alaska yellow cedar, or maintaining a weather-resistant surface coating is required.
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Q: Are pressure-treated glulam products available from Rosboro?

A: Yes. Rosboro currently manufactures a product called Rosboro Treated X-Beam that is ideal for supporting decks and other weather-exposed applications.
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Q: What are the differences between "wet-use" and "dry-use" conditions?

A: "Wet-use" and "dry-use" are terms associated with end-use conditions and their applicable design stresses. Intermittent exposure to the elements, followed by drying, still refers to "dry-use" even though the glulam beam could be described as wet.  The technical measure of "wet" is consistent moisture content within the beam of greater than 16 percent. It is important to emphasize that a moisture content of 16 percent is rarely reached unless the beam is submerged in water, subjected to an artificially humid moisture condition, or in direct contact with the ground. Even in a highly humid artificial moisture environment, moisture content of 16 percent is only reached under unique combinations of relative humidity and temperature. For example, even a beam in an environment having 80 percent relative humidity and a temperature above 70 degrees Fahrenheit will not reach equilibrium moisture content of 16 percent. Because this combination is rarely found in the U.S., ambient-air conditions rarely result in wet-use conditions. However, pockets of moisture may collect even though the wood is protected from decay hazards by pressure treatment.
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Questions About Studs

Does Rosboro treat its lumber with anti-stain?
Do your studs have any prior selections?
The quality of your products has really improved recently, what are you doing differently?
You offer KD Hem-Fir studs, is it Hemlock or White Fir?
Do you publish a price list?

Q: Does Rosboro treat its lumber with anti-stain?

A: Yes. Anti-stain is applied right after planing as the wood travels through an in-line spray booth. The formula we use will last for 90 to 120 days, helping to keep our product bright and fresh for that time period.
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Q: Do your studs have any prior selections?

A: Rosboro studs are No Prior Selection. That means Rosboro dose not pull the best wood out of the units.
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Q: The quality of your products has improved recently. What are you doing differently?

A: Rosboro has invested in new technology throughout the stud mill. Our improvements at the headrig, resaw and edger systems helps us hold better size tolerances. Our improvements at the dry kilns give us better drying consistency and our new planer auto grade and sorter systems allows Rosboro to offer a wide variety of premium quality products.
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Q: Are your KD Hem-Fir studs hemlock or white fir?

A: We manufacture studs using both species, but we do not separate them during manufacturing. The product we sell as "Hem-Fir" is typically coastal hemlock, which grows west of the Cascade mountain range. Our hemlock generally comes from Western Oregon and Southwest Washington. We also manufacture a true white fir, which grows in Eastern Oregon and parts of Northern California.
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Q: Do you publish a price list?

A: Yes. We send out a weekly price list to our customers itemizing what we have for sale via fax or e-mail. If you would like to receive our weekly list, please contact our Lumber Sales office at (888) 393-2304.
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Questions About Plywood

What effect does mold have on plywood?
I have x# live load and an x# dead load on my roof/floor; what panel should I specify?
What is the requirement for edge clips on roof sheathing (panel edge support requirements)?
What is the difference between Exterior and Exposure 1?
What is the difference between Structural 1 and Exposure 1?
What are the recommendations for panel spacing? Why is spacing important?

Q: What effect does mold have on plywood?

A: Mold and mildew, microscopic fungi that appear as woolly or powdery growth on numerous substrates, are affected by temperature and moisture conditions. A warm, wet, or humid environment provides ideal conditions for the development of mold and mildew on a variety of surfaces, including wood structural panels.

Mold and mildew are terms commonly used interchangeably, although mold is often applied to black, blue, green, and red fungal growths, and mildew to whitish growths. The color depends on the infecting organism and the type and moisture condition of the nutrient. For example, white mold is commonly found on water-saturated laboratory test samples of wood stored at room temperatures overnight.

Mold and mildew alone do not deteriorate wood, but decay may occur under similar high-moisture conditions. These conditions normally do not include humid air, which may produce mold and mildew but not the degree of moisture content that causes wood decay. As a general rule, wood will not decay if it is kept air dry.

Allowing the wood to dry to a moisture content not exceeding 20 percent stops further growth of mold or mildew fungi. The surface growth often can be easily brushed or surfaced off. Additionally, a chemical spray solution of 10 percent household bleach and water will kill the fungi. However, under renewed moist conditions, new infestation may occur.
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Q: I have x# live load and an x# dead load on my roof/floor; what panel should I specify?

A: The fastest way to determine live- and dead-load capacities is to check the load-span tables for roof and floor applications in the Engineered Wood Construction Guide found on the Plywood Technical Reference and Specifications page. The tables in this APA document provide allowable live loads for panels installed over common support spacing configurations.
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Q: What is the requirement for edge clips on roof sheathing (panel edge support requirements)?

A: Recommendations for panel edge support (edge clips) are provided in Table 24 (page 53) of the Engineered Wood Construction Guide found on the Plywood Technical Reference and Specifications page.
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Q: What is the difference between Exterior and Exposure 1?

A: Exterior plywood has a fully waterproof bond and is designed for applications subject to exposure to the weather or to moisture for its entire service life. Exposure 1 plywood has a fully waterproof bond and is designed for applications where construction delays may be expected prior to providing protection.

Exposure 1 plywood is made with the same exterior adhesives used in Exterior panels. However, because other compositional factors may affect bond performance, only Exterior plywood should be used for permanent exposure to the weather.

NOTE: APA-Rated Plywood Sheathing Exposure 1, commonly called "CDX" in the trade, is sometimes mistaken as an Exterior panel and erroneously used in applications for which it does not possess the required resistance to weather. "CDX" should only be used for applications as outlined under Exposure 1 above. For sheathing grade panels that will be exposed permanently to the weather, specify APA-Rated Sheathing Exterior (C-C Exterior plywood under PS 1).
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Q: What is the difference between Structural 1 and Exposure 1?

A: The term Structural 1 refers to certain specialized strength and stiffness characteristics of plywood panels while the term Exposure 1 refers to the glue-bond durability.
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Q: What are the recommendations for panel spacing? Why is spacing important?

A: APA recommends 1/8" spacing at all panel ends and edge joints unless otherwise indicated by the manufacturer. Spacing is important because wood expands and contracts in response to moisture content. Spacing panel edges and ends during installation minimizes the risk of panel buckling. APA's 1/8" spacing recommendations are based on typical 4 x 8 panels installed under and for normal conditions. If larger panels are used or if severe moisture conditions are anticipated, increased spacing may be required.
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Questions About Our Timberlands

How does Rosboro enhance sequestering carbon?
Do you cut and manufacture old-growth timber?
Do you buy logs or timberland?

Q: How does Rosboro enhance sequestering carbon?

A: Rosboro utilizes 100% of every log for the production of primary or secondary products. The parts of the log that don't go into lumber, plywood, or glulam are used for paper, particle board, medium density fiberboard, and bio-fuel for home and industrial use.
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Q: Do you cut and manufacture old-growth timber?

A: Our sawmill and veneer operations utilize smaller, second- or third-growth, plantation-type logs. We continue to apply the latest technology to maximize timber growth while providing a healthy forest environment.
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Q: Do you buy logs or timberland?

A: We buy logs and timberland from a variety of sources throughout Western Oregon. If you are a timberland owner looking to sell your property or just have logs to sell, please call us at (541) 746-8411 for the latest prices. Our professional foresters can help you through the harvest process from start to finish. For questions, click the following link to e-mail our log buyer.
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Oregon Forest Practices Act

Among the established regulations to utilize natural environments, the Oregon Forest Practices Act (OFPA) was the first, and still one of the strongest, national laws. By educating and training our employees and forestry contractors, Rosboro assures its forest operations meet or exceed the Best Management Practices laid out in the OFPA.