Technical Document Library

Quarterly Production Report Q1-26 Market Analysis Reports - QPRO-26 The APA Quarterly Production Report delivers comprehensive, up-to-date data on North American structural wood panel and engineered wood product markets Quarterly Production Report Q2-26 Market Analysis Reports - QPRO-26 The APA Quarterly Production Report delivers comprehensive, up-to-date data on North American structural wood panel and engineered wood product markets Research Report 138: Plywood Diaphragms Research Report - E315 This publication describes tests of high-load diaphragms with multiple rows of fasteners, glued diaphragms, and diaphragms with openings Research Report 154: Wood Structural Panel Shear Walls Research Report - Q260 This report includes test results of unblocked, stapled and metal-framed shear walls, and a summary of previous shear wall tests. APA System Report 102: APA Simplified Wall Bracing Method System Report - SR-102 This report provides an approach to meet the requirements of the 2024, 2021, 2018, 2015 and 2012 IRC simplified wall bracing (Section R602.12). APA System Report 101: Design for Combined Shear and Uplift from Wind System Report - SR-101 This report discusses using wood structural panels to resist uplift from wind, including resistance to lateral shear forces and wind pressure perpendicular to the wall APA System Report 405: Fire Protection of Floors Constructed with Prefabricated Wood I-Joists for Compliance with the International Residential Code System Report - SR-405 This system report provides guidance on fire protection of floors constructed with prefabricated wood I-joist assemblies that comply with 2015, 2018, 2021 and 2024 IRC updates APA System Report 103: Use of Wood Structural Panels for Energy-Heel Trusses System Report - SR-103 This publication outlines a construction solution to meet the IRC’s lateral and wind uplift load requirements using wood structural panels with raised-heel, or energy-heel, trusses Texas Straight-Line Wind Damage Assessment Report Damage Assessment Report - SP-1182 This report summarizes the findings of a team of engineers who visited the site of a 2017 Texas windstorm to assess the damages sustained by residences Texas Tornado Damage Assessment Report Damage Assessment Report - SP-1177 This publication contains damage assessments from the December 2015 tornado storm near Dallas, TX, including wind-resistant construction recommendations Joint Research Report: Evaluation of Force Transfer Around Openings - Experimental and Analytical Studies Research Report - M410 This report contains research results on force transfer around openings (FTAO). This study was a joint effort between APA, the USDA FPL and the UBC. Monthly Housing Report Annual Subscription Market Analysis Reports - MHRS-26 Monthly U.S. & Canadian housing market analysis covering starts, permits, home sales, mortgage rates, remodeling, and wood product demand indicators. Annual subscription. Green Verification Report - GR-L274 Nordic Structures I-Joists:
Nordic Joist™ Prefabricated Wood I-Joists 2026 Structural Panel & Engineered Wood Yearbook Market Analysis Reports - MKO-E191 Annual analysis of U.S., Canadian, and global economic factors impacting engineered wood demand, with multi-segment forecasts and historical production data. Available as PDF. Wood Structural Panel Sizes Technical Topic - TT-114 This publication provides APA’s position on wood structural panel sizes concerning panel size listings in ICC-ES ESR-2586. ANSI A190.1-2022 Product Standard for Structural Glued Laminated Timber Standards - ANSI A190.1-2022 This ANSI Standard contains requirements for the manufacture and quality control of structural glued laminated timber. Burn-Through Resistance of OSB Panels Technical Topic - TT-025 This publication discusses fire test results comparing the burn-through resistance of oriented strand board (OSB) and plywood. APA Product Reports - PR-C302 Roseburg Forest Products Company Plywood:
DuraTemp® Lap and Panel Siding APA Product Reports - PR-E740 Multiple Companies Boise Cascade Wood Products, LLC, Nordic Structures

CLT, Glulam:
Qualified Glulam and CLT Products with Low Formaldehyde Emissions APA Product Reports - PR-L233 PWT Rim Board, SCL:
PWT™ Laminated Veneer Lumber and Rim Board APA Product Reports - PR-L233C PWT SCL, Rim Board:
PWT™ Laminated Veneer Lumber and Rim Board APA Product Reports - PR-L238 PWT I-Joists:
PWT™ I-Joists APA Product Reports - PR-L238C PWT I-Joists:
PWT™ I-Joists APA Product Reports - PR-L251 Rosboro Glulam:
Rosboro Structural Glued Laminated Timber APA Product Reports - PR-L259 Roseburg Forest Products Company I-Joists:
Roseburg RFPI® Series I-Joists APA Product Reports - PR-L259C Roseburg Forest Products Company I-Joists:
Roseburg RFPI® Series I-Joists APA Product Reports - PR-L261C Interfor I-Joists:
P3 Joist I-Joists APA Product Reports - PR-L274 Nordic Structures I-Joists:
Nordic Structures Prefabricated Wood I-Joists APA Product Reports - PR-L274C Nordic Structures I-Joists:
Nordic Joist™ APA Product Reports - PR-L275 Rosboro Glulam:
Rosboro Treated Glulam APA Product Reports - PR-L283 Murphy Company SCL:
Murphy Laminated Veneer Lumber APA Product Reports - PR-L289 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL and RigidRim® LVL Rimboard APA Product Reports - PR-L289C Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL and RigidRim® LVL Rimboard APA Product Reports - PR-L292 Murphy Company SCL:
Murphy T1 and T2 Laminated Veneer Lumber Tension Lams APA Product Reports - PR-L294 Nordic Structures Glulam:
Nordic Lam™ APA Product Reports - PR-L294C Nordic Structures Glulam:
Nordic Lam™ APA Product Reports - PR-L297 Mississippi Laminators, Incorporated Glulam:
Mississippi Laminators Glulam Products APA Product Reports - PR-L301 Global LVL Inc. SCL:
Global LVL APA Product Reports - PR-L304 Rosboro Rim Board:
X-RIM Board APA Product Reports - PR-L305 QB Corporation Rim Board, Glulam:
QB Structural Glued Laminated Timber and QB RIM APA Product Reports - PR-L306 Nordic Structures CLT:
Nordic X-Lam APA Product Reports - PR-L306C Nordic Structures CLT:
Nordic X-Lam APA Product Reports - PR-L307 Murphy Company SCL:
Murphy ConBeam LVL APA Product Reports - PR-L312 Murphy Company SCL:
2350Fb-2.0E Murphy LVL Scaffold Planks APA Product Reports - PR-L316 PWT SCL:
PWT™ LVL Scaffold Planks APA Product Reports - PR-L317 Nordic Structures Glulam:
Nordic Lam™ Scaffold Plank APA Product Reports - PR-L319 SmartLam NA Columbia Falls, LLC CLT:
SmartLam Cross-Laminated Timber APA Product Reports - PR-L321 Shelton Structures Inc. Glulam:
Shelton Glulam Columns APA Product Reports - PR-L328 Vaagen Timbers, LLC CLT:
Vaagen Cross-Laminated Timber APA Product Reports - PR-L329 PWT SCL:
PWT™ Preservative-Treated Laminated Veneer Lumber APA Product Reports - PR-L330 IB EWP Inc. I-Joists:
IB Series I-Joists APA Product Reports - PR-L330C IB EWP Inc. I-Joists:
IB Series I-Joists APA Product Reports - PR-L331 Nordic Structures CLT:
Nordic X-Lam Industrial CLT Matting APA Product Reports - PR-L331C Nordic Structures CLT:
Nordic X-Lam Industrial CLT Matting APA Product Reports - PR-L332 Kalesnikoff Mass Timber, Inc. CLT:
Kalesnikoff Cross-Laminated Timber APA Product Reports - PR-L332C Kalesnikoff Mass Timber, Inc. CLT:
Kalesnikoff Cross-Laminated Timber APA Product Reports - PR-L333 Kalesnikoff Mass Timber, Inc. Glulam:
Kalesnikoff Structural Glued Laminated Timber APA Product Reports - PR-L334 West Fraser LVL SCL:
West Fraser LVL Tension Lams APA Product Reports - PR-L336 Rosboro Rim Board:
Rosboro X-Rim+ and X-Rim FRT APA Product Reports - PR-L337 Freres Lumber Co., Inc. CLT:
Freres Industrial MPP Matting APA Product Reports - PR-L338 Zip-O-Laminators, LLC Rim Board:
Zip-Rim APA Product Reports - PR-L339 Element5 Limited Partnership CLT:
Element5 Cross-Laminated Timber APA Product Reports - PR-L339C Element5 Limited Partnership CLT:
Element5 Cross-Laminated Timber APA Product Reports - PR-L340 Resolute Engineered Wood I-Joists:
Resolute RSI I-Joists APA Product Reports - PR-L340C Resolute Engineered Wood I-Joists:
Resolute RSI I-Joists APA Product Reports - PR-L342 AcuTruss Industries 1996 (LTD) I-Joists:
AcuJoist ACJ® Series I-Joists APA Product Reports - PR-L342C AcuTruss Industries 1996 (LTD) I-Joists:
AcuJoist ACJ® Series I-Joists APA Product Reports - PR-L344 Vaagen Timbers, LLC Glulam:
Vaagen Structural Glued Laminated Timber APA Product Reports - PR-L345 Alamco Wood Products, LLC Glulam:
Alamco Structural Glued Laminated Timber APA Product Reports - PR-L349C West Fraser LVL SCL:
West Fraser LVL and LVL Studs APA Product Reports - PR-L352 D.R. Johnson Wood Innovations Glulam:
DRJ Structural Glued Laminated Timber APA Product Reports - PR-L354 Element5 Limited Partnership Glulam:
Element5 Structural Glued Laminated Timber APA Product Reports - PR-L354C Element5 Limited Partnership Glulam:
Element5 Structural Glued Laminated Timber APA Product Reports - PR-L355 FraserWood Industries Ltd. Glulam:
FraserWood Structural Glued Laminated Timber APA Product Reports - PR-L356 Tolko Industries Ltd. I-Joists:
T-TEC Series I-Joists APA Product Reports - PR-L356C Tolko Industries Ltd. I-Joists:
T-TEC Series I-Joists APA Product Reports - PR-N127 LP OSB:
LP Legacy® Premium Sub-Flooring APA Product Reports - PR-N129 RoyOMartin OSB:
RoyOMartin TuffStrand® and Windbrace® 7/16 Performance Category OSB APA Product Reports - PR-N135 Georgia-Pacific Wood Products LLC OSB:
Georgia-Pacific DryMax® Industrial Panel APA Product Reports - PR-N138 LP OSB:
LP WeatherLogic® Air & Water Barrier APA Product Reports - PR-N139 LP OSB:
LP NovaCore® Thermal Insulated Sheathing APA Product Reports - PR-N141 LP OSB:
Louisiana-Pacific Corporation BURNGUARD™ FRT OSB APA Product Reports - PR-N213 West Fraser Timber Co. Ltd. OSB:
West Fraser Treated OSB APA Product Reports - PR-N216 Tolko Industries Ltd. OSB:
Tolko Zinc-Borate Treated OSB APA Product Reports - PR-N414 West Fraser Timber Co. Ltd. OSB:
West Fraser Concrete Edge Form APA Product Reports - PR-N610 Multiple Companies LP, Tolko Industries Ltd., West Fraser Timber Co. Ltd.

OSB:
Qualified OSB Facing Materials for Structural Insulated Panels APA Product Reports - PR-N612 West Fraser Timber Co. Ltd. OSB:
West Fraser 7/16 Proprietary OSB Facers for SIPs APA Product Reports - PR-N614 Tolko Industries Ltd. OSB:
Tolko Proprietary OSB Facers for SIPs APA Product Reports - PR-N801 West Fraser Timber Co. Ltd. OSB:
West Fraser Core Stock Panels APA Product Reports - PR-S274 Nordic Structures I-Joists:
Nordic Joist™ Series Prefabricated Wood I-Joists APA Product Reports - PR-S330 IB EWP Inc. I-Joists:
IB Series Prefabricated Wood I-Joists APA Product Reports - PR-S342 AcuTruss Industries 1996 (LTD) I-Joists:
AcuJoist ACJ® Series I-Joists APA Product Reports - PR-V180 Warmboard, Inc. Plywood:
Warmboard-S® Radiant Floor Heating Panels ESR Joint Evaluation Report - ESR-1040 Boise Cascade Wood Products, LLC SCL:
VERSA-LAM® Laminated Veneer Lumber ESR Joint Evaluation Report - ESR-1053 West Fraser Timber Co. Ltd. SCL:
1.7E, 1.55E, 1.35E  Durastrand® Laminated Strand Lumber (LSL), 1.5E, 1.3E, 0.8E Durastrand® Oriented Strand Lumber (OSL) ESR Joint Evaluation Report - ESR-1144 Boise Cascade Wood Products, LLC I-Joists:
AJS Series Prefabricated Wood I-Joists ESR Joint Evaluation Report - ESR-1210 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® Laminated Veneer Lumber (LVL) and RigidRim® LVL Rim Board ESR Joint Evaluation Report - ESR-1251 Roseburg Forest Products Company I-Joists:
RFPI® Prefabricated Wood I-Joists ESR Joint Evaluation Report - ESR-1262 Interfor I-Joists:
P3 JOIST PJI-40, PJI-60, PJI-65, PJI-80 and PJI-90 I-Joists ESR Joint Evaluation Report - ESR-1301 LP OSB:
LP® SmartSide® and LP® SmartSide® ExpertFinish® Treated-Engineered-Wood Lap, Panel, Shake Lap, Nickel Gap Lap and Vertical Siding ESR Joint Evaluation Report - ESR-1305 PWT I-Joists:
PWT™ I-Joists ESR Joint Evaluation Report - ESR-1336 Boise Cascade Wood Products, LLC I-Joists:
BCI Prefabricated Wood I-Joists ESR Joint Evaluation Report - ESR-1405 Multiple Companies Interfor, IB EWP Inc., Nordic Structures, Resolute Engineered Wood, Roseburg Forest Products Company, Stark Truss Company, Inc.

I-Joists:
Performance Rated I-Joists ESR Joint Evaluation Report - ESR-1618 West Fraser LVL SCL:
West Fraser™ LVL Laminated Veneer Lumber ESR Joint Evaluation Report - ESR-1742 Nordic Structures I-Joists:
Nordic Joist Prefabricated I-Joists ESR Joint Evaluation Report - ESR-1940 Multiple Companies Canfor, WFP Engineered Products, LLC

Glulam:
Glued-Laminated Timber Combinations and the GAP Computer Program ESR Joint Evaluation Report - ESR-2725 Tolko Industries Ltd. SCL:
T-TEC® LSL, T-TEC® ZB Treated LSL, and T-TEC® LVL ESR Joint Evaluation Report - ESR-2909 PWT Rim Board, SCL:
PWT™ Laminated Veneer Lumber (LVL), PWT™ Treated LVL and PWT™ Rim Boards ESR Joint Evaluation Report - ESR-2913 Murphy Company SCL:
Murphy Laminated Veneer Lumber (LVL) ESR Joint Evaluation Report - ESR-2919 Stark Truss Company, Inc. I-Joists:
Stark Truss SI-40, SI-60 and SI-80 Series Prefabricated Wood I-Joists ESR Joint Evaluation Report - ESR-3631 OK Laminators, Inc. CLT:
OK Laminators CLT ESR Joint Evaluation Report - ESR-4733 SmartLam NA Columbia Falls, LLC CLT:
SmartLam Cross-Laminated Timber (CLT) ESR Joint Evaluation Report - ESR-4759 Freres Lumber Co., Inc. SCL:
Freres Single Ply Laminated Veneer Lumber ESR Joint Evaluation Report - ESR-4760 Freres Lumber Co., Inc. SCL, CLT:
Freres Mass Ply Panel (MPP) and Mass Ply Lams (MPL) beams and columns ESR Joint Evaluation Report - ESR-4874 Nordic Structures Glulam:
Nordic Lam ESR Joint Evaluation Report - ESR-4875 Nordic Structures CLT:
Nordic X-LAM CLT ESR Joint Evaluation Report - ESR-5157 Boise Cascade Wood Products, LLC CLT, SCL:
Boise Cascade Veneer Laminated Timber ESR Joint Evaluation Report - ESR-5815 Vaagen Timbers, LLC Glulam:
Vaagen Structural Glued Laminated Timber Green Verification Report - GR-L233 PWT SCL, Rim Board:
PWT™ Laminated Veneer Lumber and Rim Board Green Verification Report - GR-L238 PWT I-Joists:
PWT™ I-Joists Green Verification Report - GR-L251 Rosboro Glulam:
Rosboro Structural Glued Laminated Timber Green Verification Report - GR-L259 Roseburg Forest Products Company I-Joists:
Roseburg RFPI® Series I-Joists Green Verification Report - GR-L289 Roseburg Forest Products Company Rim Board, SCL:
RigidLam® LVL, RigidRim® LVL Rim Board Green Verification Report - GR-L294 Nordic Structures Glulam:
Nordic Lam™ Green Verification Report - GR-L306 Nordic Structures CLT:
Nordic X-Lam Green Verification Report - GR-L329 PWT SCL:
PWT™ Preservative-Treated Laminated Veneer Lumber Green Verification Report - GR-L330 IB EWP Inc. I-Joists:
IB Series I-Joists Green Verification Report - GR-L343 Zip-O-Laminators, LLC Glulam, Rim Board:
Zip-O-Laminators Glulam, Zip-Rim APA Product Reports - PR-E710 Multiple Companies Hardel Mutual Plywood Corporation, Rayonier, Roseburg Forest Products Company, Tolko Industries Ltd.

Plywood, OSB:
Qualified Wood Structural Panels with Low Formaldehyde Emissions APA Product Reports - PR-E720 Multiple Companies Boise Cascade Wood Products, LLC, Murphy Company, PWT, Roseburg Forest Products Company, Tolko Industries Ltd.

SCL:
Structural Composite Lumber (SCL) Qualified for Low Formaldehyde Emissions APA Product Reports - PR-E730 Multiple Companies Boise Cascade Wood Products, LLC, Interfor, Nordic Structures, PWT, Resolute Engineered Wood, Roseburg Forest Products Company

I-Joists:
Qualified Wood I-Joists with Low Formaldehyde Emissions APA Product Reports - PR-L260 West Fraser Timber Co. Ltd. SCL:
West Fraser Durastrand® LSL and OSL APA Product Reports - PR-L261 Interfor I-Joists:
PJI Prefabricated Wood I-Joists APA Product Reports - PR-L263 Canfor Glulam:
Power Beam® and Power Rated Glulam (PRG®) APA Product Reports - PR-L269 WFP Engineered Products, LLC Glulam, Rim Board:
WFP GL 3000 Glulam and WFP Rim APA Product Reports - PR-L271 Arizona Structural Laminators, LLC Glulam:
20F, 24F, 26F, 28F and 30F Glulam Beams APA Product Reports - PR-L282 Canfor Glulam:
Power Preserved Glulam® Beams and Columns APA Product Reports - PR-L284 Tolko Industries Ltd. SCL:
Tolko Laminated Strand Lumber (LSL) and Laminated Veneer Lumber (LVL) APA Product Reports - PR-L284C Tolko Industries Ltd. SCL:
Tolko Laminated Strand Lumber (LSL) and Laminated Veneer Lumber (LVL) APA Product Reports - PR-L313 Boise Cascade Wood Products, LLC Glulam:
KING BEAM® 3000 and BOISE GLULAM® APA Product Reports - PR-L314 OK Laminators, Inc. CLT:
OK Laminators CLT APA Product Reports - PR-L314C OK Laminators, Inc. CLT:
OK Laminators CLT APA Product Reports - PR-L322 Shelton Structures Inc. Glulam:
Shelton Lock-Deck Laminated Decking APA Product Reports - PR-L324 Freres Lumber Co., Inc. SCL:
Freres LVL APA Product Reports - PR-L325 Freres Lumber Co., Inc. CLT:
Freres Mass Ply Panels (MPP) and Mass Ply Lam (MPL) Beams and Columns APA Product Reports - PR-L325C Freres Lumber Co., Inc. SCL, CLT:
Freres Mass Ply Panels (MPP) and Mass Ply Lam (MPL) Beams and Columns APA Product Reports - PR-L326 SmartLam NA Dothan, LLC. Glulam:
SmartLam NA Dothan Glulam Beams and Columns APA Product Reports - PR-L327 SmartLam NA Dothan, LLC. CLT:
SmartLam NA Dothan Cross-Laminated Timber APA Product Reports - PR-L335 Boise Cascade Wood Products, LLC SCL:
Boise Cascade VersaWorks® Veneer Laminated Timber APA Product Reports - PR-L335C Boise Cascade Wood Products, LLC CLT:
Boise Cascade® Veneer Laminated Timber APA Product Reports - PR-L341 Resolute Engineered Wood I-Joists:
Resolute RSI I-Joists APA Product Reports - PR-L341C Resolute Engineered Wood I-Joists:
Resolute RSI I-Joists APA Product Reports - PR-L346 Zip-O-Laminators, LLC Glulam:
Zip-O-Laminators Glued Laminated Timber APA Product Reports - PR-L347 Mercer Conway CLT:
Mercer Cross-Laminated Timber APA Product Reports - PR-L348 Mercer Conway Glulam:
Mercer Structural Glued Laminated Timber APA Product Reports - PR-L350 WA Enterprises LTD. Glulam:
WA Enterprises Structural Glued Laminated Timber APA Product Reports - PR-L350C WA Enterprises LTD. Glulam:
WA Enterprises Structural Glued Laminated Timber APA Product Reports - PR-L351 OK Laminators, Inc. Glulam:
OK Laminators Structural Glued Laminated Timber APA Product Reports - PR-L351C OK Laminators, Inc. Glulam:
OK Laminators Structural Glued Laminated Timber APA Product Reports - PR-L353 Zip-O-Laminators, LLC Glulam:
Zip-O Laminators Acoustic Sound Panel APA Product Reports - PR-N117 LP OSB:
LP® SmartSide® and LP® SmartSide®  ExpertFinish® Soffit and Rated Sheathing/Ceiling Deck and LP® SmartSide® Soffit and LP® SmartSide®  ExpertFinish Treated-Engineered-Wood Nickel Gap Lap APA Product Reports - PR-N124 LP OSB:
LP® SmartSide® and LP® SmartSide® ExpertFinish® Treated-Engineered-Wood Lap Panel, Shake Lap, Nickel Gap Lap, and Vertical Siding APA Product Reports - PR-N133 West Fraser Timber Co. Ltd. OSB:
West Fraser TallWall/Windstorm/QuakeZone® Rated Sheathing for Use with IRC Energy-Heel Trusses APA Product Reports - PR-N136 Georgia-Pacific Wood Products LLC OSB:
Georgia-Pacific ForceField® Weather-Resistive Barrier OSB APA Product Reports - PR-N137 RoyOMartin OSB:
RoyOMartin WINDBRACE OSB Sheathing for Combined Shear and Wind Uplift APA Product Reports - PR-N140 LP OSB:
LP BuilderSeries® Treated-Engineered-Wood Lap Siding with SmartLock™ Technology APA Product Reports - PR-N215 West Fraser Timber Co. Ltd. OSB:
West Fraser TruFlor pointSIX SIF OSB and Durastrand pointSIX SIF OSB APA Product Reports - PR-N217 Plywood, OSB:
Performance Standards and Qualification Policy for Wood Structural Panels and Performance Standard for 303 Siding