All Products Rosboro
Rosboro X-Rim™
Rosboro X-Beam™ (Douglas Fir)
X-Beam Specifications
Glulam specifications, intended to provide design values and product attributes for Rosboro X-Beam.
X-Beam Technical Guide
Technical guide, with data tables, about Rosboro's full framing-width glulam beam, the X-Beam™ by Rosboro.
Glulam Beams Sized for Narrower Hangers
Information and warnings about Glulam Beams sized and/or notched for narrower hangers.
Simpson Strong Tie Connector Guide for X-Beam
Simpson Strong Tie Connector Selection Guide for Rosboro's X-Beam
Special Inspection of Glulam-Change in the 2007 California Building Code
Special Inspection of Glulam - Change in 2007 California Building code
X-Beam Load Tables
Rosboro Big Beam DF™
Rosboro Big Beam Load Tables
Rosboro Treated Glulam Resources
AWPA M4-06 Brush on Treatment Recommendations
Requirements for care of preservative treated poles, piles, lumber and ties in plants, storage yards, and on job sites. Also includes information for field fabrication, field treatment, and management of used treated wood products.
AITC Standard for Preservative Treatment of Structural Glued Laminated Timber
Information about standards for Preservative Treatment of structural Glulam beams.
Home Builder's Guide to Coastal Construction - FEMA 499
Information on the selection of building materials used for coastal construction.
Preservative Treatment for Structural Glued Laminated Timber
Information on preservative treatment for structural glued laminated timber.
Rosboro Custom Glulam
Rosboro RMT
DSA Approval
California's Division of the State Architect's approval of Rosboro Manufactured Timbers RMT Glulam
IR 23-10 California DSA
California's Division of the State Architect's approval of Rosboro Manufactured Timbers RMT Glulam
EWP Product Reports
EWP Product and Design Guides
Glulam in Residential Building Construction Guide
This guide from APA details the uses of APA-trademarked structural glued laminated timber (glulam) in residential construction. It explains the capabilities and characteristics and includes a specification guide providing tips on how to order glulam.
Substitution of Glulam Beams for Steel or Solid-Sawn Lumber
APA report on Substitution of Glulam Beams for Steel or Solid-Sawn Lumber.
EWP Technical Notes
Uniform Vertical Load Capacity of Glulam Rim Boards Subject to Fire Exposure
APA Technical Topic TT-124A describing the use of Glulam for fire resistance in rim applications.
Calculating Fire Resistance of Glulam Beams and Columns
Calculating Fire Resistance of Glulam Beams and Columns
Fire Treated Glulam
There is a great deal of confusion surrounding fire retardant treatments that can be applied to wood products. Several manufacturers have tested their products and have received code approval for use on framing lumber and plywood.
Design Values for Glulam Beam Cutoffs
Stock beams come in typical sizes of 48-56' lengths. After several cuttings the issue becomes "What design stresses should be assigned to these resawn cutoff sections?"
Owner's Guide to Understanding Checks in Glued Laminated Timber
Owner's Guide to Understanding Checks in Glued Laminated Timber
Builder's Tip: Minimize Glulam Checking Through Proper Storage and Handling
Tips about seasonality, storage, and installation effects on checking.
Nail Spacing Guide for Glulam
From the American Plywood Association (APA) - The Engineered Wood Association, a discussion about and requirements of minimum nail spacing.
Dimensional Changes in Structural Glued Laminated Timber
Information about dimensional tolerances, shrinkage and swelling of glulam, and calculating dimensional changes.
Allowable Depth-to-Width Ratios for Glulam Beams
Current guidelines for lower and upper limits of bracing requirements in an Engineering Bulletin.
Field Notching and Drilling of Glue Laminated Timber Beams
Whenever making field modifications, including notching, tapering, or drilling, always follow the guideline provided.
Glued Laminated Timber Appearance Classifications for Construction Applications
Distinction between appearance considerations and structural properties of glulam members.
Glulam Connection Details
The larger sizes and longer spans made possible with glulam components make the proper detailing of connections even more important.
Connections for Built-Up Glulam Beams
Combining glulam beams must be connected in a manner that will permit the load to be shared equally by both beams.
True (Shear-Free) and Apparent Moduli of Elasticity
True (Shear-Free) and Apparent Moduli of Elasticity
Studs Technical Literature
All Material Safety Data Sheets (MSDS)
MSDS for Laminated Beam Products
#48 Safety Data Sheet (SDS) for Laminated Beam Products. New format replaces MSDS.
MSDS for Laminated Beam Products (Hi-Clear II™ Treated Wood)
#173 Safety Data Sheet (SDS) for Laminated Beam Products (Hi-Clear II™ Treated Wood), Rosboro Treated Glulam. New format replaces MSDS.
