Committed to being a valuable resource to you 

The products we sell are used in several applications and across several industries.  Following is a guide with product specifications, resources and industry links that we hope you will find helpful.

If there is anything that you would like us to add to this list, please contact us and let us know.  We are committed to being a valuable resource for you and committed to helping you succeed.




APA Panel Design Specifications:

A manual of section properties, recommended design stresses and design methods for plywood manufactured under Voluntary Product Standard PS 1. This edition remains available, along with PDS Supplements #1-5 until various building code references are updated and new supplements are developed. For the most recent PDS manual, please see Form D510, Panel Design Specification. Revised September 1998. (Form Y510 – 32 pages)

Panel Design Specification


Product Guide: Performance Rated Panels:

Describes performance standards for structural wood panels and the compositions of different types of APA panels with the Performance Rated designations of APA RATED SHEATHING, APA RATED STURD-I-FLOOR and APA RATED SIDING. It also describes the typical applications where Performance Rated panels are used and provides updated trademark and performance category information.

APA Concrete Forming Design/Construction Guide


Product Guide:  Design/Construction Guide: Concrete Forming:

Contains grade information, form maintenance recommendations, design data and help selecting and specifying concrete form panels.



Product Guide:  Glulam:

Glued laminated timber (glulam) redefines the possibilities for engineered wood construction. Glulam is an engineered wood product that optimizes the structural value of a renewable source – wood.  This updated brochure, Glulam Product Guide describes APA EWS trademarked glulam, addresses important design considerations, and includes a specification guide.

APA Product Guide Glulam



APA – Grading Agency that represents U.S. and Canadian manufacturers of structural engineered wood products, including plywood, oriented strand board (OSB), glued-laminated timber (glulam), wood I-joists and structural composite lumber. Its primary functions are product certification and testing, applied research, and market support and development.  Need literature or more information?  They are a great source.


WWPA – Western Wood Products Association delivers lumber grading, quality control, technical, business information and product support services to sawmills as well as those who use Western softwood lumber products throughout the world.


Shipping components or pallets internationally and need more information on IPPC regulations? 

ALSC – American Lumber Standard Committee –For information on the ALSC’s Wood Packaging Materials Program and accredited agencies, go to


Shipping wood Internationally?  Need more information on KDHT or ISPM 15 standards, see USDA link.

USDA – For additional information on the international regulations regarding the export of pallets and wood packaging materials and the ISPM15 regulations, go to the USDA/APHIS web site at:


Pressure Treated Wood 

Naturewood ACQ Treated Specifications:

SillBor Borate Specifications:

CCA Wolwanized Heavy Duty Wood Specs:

Dricon FRT Wood –

FRX Exterior FRT Wood –


Random LengthsRandom Lengths provides the forest products industry with unbiased, consistent, and timely reports of market activity and prices, related trends, issues, and analyses.




WWPA – Western Dimensional Lumber Base Values – Be sure to use the Adjustment Factor with the Base Value chart for correct values

WWPA – WWPA Beams Stringers Design Values – Be sure to use the Adjustment Factor with the Base Value chart for correct values


Mold, Housing and Wood

Explains why and how mold grows on nearly any material including wood, steps that can be taken to prevent, control and remove mold, and current scientific information about the health effects of mold.


Additional Useful Information:

 Board Factor Sheet

Standard Size Units 

Calculating Weight 


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    Trio Mailing Address:
    PO Box 1465
    Mesa, AZ 85211

    Trio Physical Address:
    959 S. Center St.
    Mesa, AZ 85210

    Phone 480.969.8288

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