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Technical Library

Information and Data

Click on a section below for a list of technical product information:APA Logo


 All Products Rosboro

Title Size Description
Rosboro All Products Brochure
564 KB Informational brochure highlighting Rosboro products and information.
APA EWP Design Guide
2.4 MB This 72-page EWP Design/Construction guide from the APA provides product information and specification recommendations for several of the most common engineered wood products: plywood, OSB, composite panels, glulam and I-joists. It also contains illustrations and tips for floor, wall and roof construction in both residential and commercial/industrial buildings.

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Rosboro X-Beam™ (Douglas Fir)

Title Size Description
X-Beam Technical Guide
547 KB Technical guide, with data tables, about Rosboro's full framing-width glulam beam, the X-Beam™ by Rosboro.
X-Beam Flyer
352 KB Informational flyer about the full framing-width glulam, the X-Beam™ by Rosboro.
X-Beam Specifications
159 KB Glulam specifications, intended to provide design values and product attributes for Rosboro X-Beam.
Glulam Beams Sized for Narrower Hangers
103 KB Information and warnings about Glulam Beams sized and/or notched for narrower hangers.
Simpson Strong Tie Connector Guide for X-Beam 427 KB Simpson Strong Tie Connector Selection Guide for Rosboro's X-Beam
Special Inspection of Glulam-Change in the 2007 California Building Code
44 KB Special Inspection of Glulam - Change in 2007 California Building code
X-Beam Column Tables 57 KB Rosboro Tall Wall Columns Allowable Loads Tables
Tall Wall Column Tables 204 KB Rosboro X-Beam Columns Allowable Loads Tables
X-Beam Single_Story Header Tables 95 KB Rosboro X-Beam Single-Story Header Allowable Loads Tables
Rosboro Glulam Warranty
775 KB Rosboro's Glulam Warranty certificate.

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Rosboro Treated X-Beam™ (Douglas Fir)

Title Size Description
 Rosboro Treated X-Beam Brochure
515 KB Technical guide, with data tables, about Rosboro's full framing-width Treated X-Beam.
Treated X-Beam Warranty
1.4 MB Treated X-Beam 25-year Warranty
PLF- Floor Load 148 KB Allowable load (PLF) for all widths 24F-V4/DF Glulam Floor Beams - 100% Floor Load
PLF- Snow Load 151 KB Allowable load (PLF) for all widths 24F-V4/DF Glulam Roof Beams - 115% Snow Load
PLF- Non-Snow Load 162 KB Allowable load (PLF) for all widths 24F-V4/DF Glulam Roof Beams - 125% Non-Snow Load
Product Report- Rosboro Treated Glulam 93 KB APA Product Report on Rosboro 24F-V4/DF Treated Glulam
HI-ClearII™ Consumer Information Sheet
81 KB HI-Clear II™ is wood, pressure treated with IPBC and Permethrin wood preservatives. It provides fungicidal and insect protection for wood products in above ground uses. It is low in toxicity and can be
installed with a high degree of safety.
HI-Clear II™ Specification Sheet
139 KB Information about HI-CLEAR II™, a petroleum solvent based 2-component wood preservative system for the pressure treatment of lumber, timbers, laminated beams, plywood, and architectural wood products.

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Rosboro Treated Glulam Resources

Title Size Description
 Rosboro Treated Glulam White Paper
126 KB Rosboro Treated Glulam White Paper.
Perscriptive Wood Deck Construction Guide
3 MB Based on the 2012 International Residential Code.
Controlling Decay in Wood Construction
102 KB Controlling Decay in Wood Construction.
AWPA M4-06 Brush on Treatment Recomendations
119 KB 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
60 KB Information about standards for Preservative Treatment of structural Glulam beams.
Home Builder's Guide to Coastal Construction - FEMA 499
760 KB

Information on the selection of building materials used for coastal construction.

Preservative Treatment for Structural Glued Laminated Timber
335 KB

Information on preservative treatment for structural glued laminated timber.

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Rosboro Custom Glulam

Title Size Description
Custom Glulam Flyer
196 KB Overview of Rosboro Custom Glulam Capabilities
Alaskan Yellow Cedar and Port Orford Cedar Flyer 250 KB Benefits and Design Properties of Alaska Yellow Cedar and Port Orford Cedar Glulam Beams.

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Rosboro RMT™

Title Size Description
RMT User Guide
159 KB RMT - Rosboro Manufactured Timber User Guide
DSA Approval
124 KB California's Division of the State Architect's approval of Rosboro Manufactured Timbers RMT Glulam
IR 23-10 California DSA
121 KB California's Division of the State Architect's approval of Rosboro Manufactured Timbers RMT Glulam
RMT Development WCLIB 505 KB Letter from WCLIB about Rosboro RMT product

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EWP Product Reports

Title Size Description
 Rosboro Product Report
84 KB Rosboro Product Report - PR-L251
ESR 1940
577 KB Rosboro Glulam Beams evaluation information from the ICC Evaluation Service, Inc

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EWP Product and Design Guides

Title Size Description
APA CAD Website

A free resource for building designers and constrution professionals
Substitution of Glulam Beams for Steel or Solid-Sawn Lumber 2.3MB APA report on Substitution of Glulam Beams for Steel or Solid-Sawn Lumber.
Port Orford Cedar Design Tables
179 KB Port Orford Cedar Design Tables
Alaska Yellow Cedar Design Tables
178 KB Alaska Yellow Cedar Design Tables
Design of Structural Glued Laminated Columns
151 KB Design of Structural Glued Laminated Columns
Engineered Wood Construction Guide
2.4 MB APA Engineered Wood Products Construction Guide, 72-pages, providing product info and spec recommendations for plywood, OSB, composite panels, glulam, and I-joists. Includes illustrations and tips for floor, wall and roof construction for residential and commercial/industrial buildings.
Glulam Beam Camber
93 KB Glulam Beam Camber

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EWP Technical Notes

Title Size Description
Calculating Fire Resistance of Glulam Beams and Columns
569 KB Calculating Fire Resistance of Glulam Beams and Columns
Fire Treated Glulam
22 KB 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
359 KB 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
566 KB Owners Guide to Understanding Checks in Glued Laminated Timber
Checking in Glued Laminated Timber
426 KB Checking in Glued Laminated Timber
 Builder's Tip: Minimize Glulam Checking Through Proper Storage and Handling
70 KB Builder Tip: Minimize Glulam Checking Through Proper Storage and Handling
Proper Storage and Handling of Glulam Beams
346 KB Proper Storage and Handling of Glulam Beams
Nail Spacing Guide for Gluam
140 KB Published by the APA, discussion and nail minimum spacing tables
Dimensional Changes in Structural Glued Laminated Timber
136 KB Dimensional Changes in Structural Glued Laminated Timber
Eng Bulletin-Allowable depth-to-width ratio for glulam beams
29 KB Eng. Bulletin- Allowable depth-to-width ratio for glulam beams
Field Notching and Drilling of Glue Laminated Timber Beams
200 KB Field Notching and Drilling of Glued Laminated Timber Beams
Glued Laminated Timber Appearance Classifications for Construction Applications
240 KB Glued Laminated Timber Appearance Classifications for Construction Applications
Glulam Connection Details
631 KB Glulam Connection Details
Connections for Built-Up Glulam Beams
124 KB Connections for Built-Up Glulam Beams
True (Shear-Free) and Apparent Moduli of Elasticity
62 KB True (Shear-Free) and Apparent Moduli of Elasticity
Apparent E and Shear-Free E
57 KB Apparent E and Shear-Free E
Formaldehyde in Glulam
380 KB Formaldehyde in Glulam

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Studs Technical Literature

Title Size Description
Unseasoned (Green)
47 KB This four-page document contains information about lumber seasoning requirements, shrinkage considerations, advantages for framing, handling requirements and tips for avoiding problems.

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All Material Safety Data Sheets (MSDS)

Title Size Description
MSDS for Wood Dust
36 KB #22 Safety Data Sheet (SDS) for Wood Dust. New format replaces MSDS.
MSDS for Laminated Beam Products 42 KB #48 Safety Data Sheet (SDS) for Laminated Beam Products. New format replaces MSDS.
MSDS for Laminated Beam Products (Hi-Clear II™ Treated Wood) 48 KB #173 Safety Data Sheet (SDS) for Laminated Beam Products (Hi-Clear II™ Treated Wood), Rosboro Treated Glulam. New format replaces MSDS.
MSDS for Britewood Treated Lumber
54 KB MSDS for Britewood Treated Lumber
Britewood Tank Mix (Dilute Solution)
903 KB Britewood Tank Mix (Dilute Solution)
Springfield Glulam End Sealer
3 MB Springfield Glulam End Sealer
MSDS for U-100-A 6:1 Std EM Fir AC 59 3 MB MSDS for U-100-A 6:1 Std EM Fir AC 59
MSDS for U-100-B Synthetic Patch 60.pdf 247 KB MSDS for U-100-B Synthetic Patch 60

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