What is checking?

Checking is a common moisture related phenomenon in wood. Checking occurs naturally in wood and is parallel to the natural grain direction of the piece. Glulam beams typically exhibit fewer and less severe checks than comparable size sawn timbers due to their relatively low moisture content at time of manufacture. It is often difficult, however, to control the exposure of glulam to the elements during shipping, storage, and erection. Checks are often observed near a glueline in a glulam member where differential drying stresses are greatest. This most often occurs near the outermost glueline where the amount of surface exposed by the outermost lamination is greatest. Checks are a natural characteristic of wood and are not normally considered to have a detrimental effect on the strength of the member.

Rosboro Custom Glulam

Convenience and Flexibility

Because Rosboro operates its own sawmills and planers, we are able to offer our industry-leading glulam in custom sizes that give our customers greater flexibility and the convenience of combining custom orders with other building materials. Rosboro also offers FSC® certified products.

Please talk to your sales representitive for more information.

Curved Glulam

Rosboro can manufacture a wide array of curved shapes up to 100 feet long. Our dedicated glulam sales team will help you coordinate and complete your curved-beam specifications.

Species

• Douglas Fir
• Alaska Yellow Cedar
• Port Orford Cedar

Click here for more information about species.

Appearances

• Premium Hand Select (Rosboro Standard)
  
• Premium (Industry Standard)
  
• Architectural
• Industrial
• Framing
• Rough Sawn Texture

Click here for more information about appearances.

Sizes

• Up to 14-1/4" wide
• Depths to 53" (Inquire about depths beyond 53")
• Traditional and I-Joist compatible depths
• Lengths to 100'
• 9-1/4" and 11-1/4" depths to match 2 x 10 and 2 x 12 framing

Custom Textures: Rough Sawn

Rosboro's rough sawn texture creates a surface similar to rustic sawn lumber. This texture can be applied to any of the appearance classifications.

Balanced Layup

Available in unbalanced and balanced beams. Click here for more information about balance.

Treatments

Custom beams of Douglas fir and southern yellow pine can be ordered with specified treatment to protect against decay, mold, and insect attack. Click here for more information on treatments.

Camber

Maximizing the inherent attributes of glulam, Rosboro can adjust camber to suit the specific load-bearing specifications of our clients' projects. Click here for more information on camber.