Technical Document Library

303 Siding Manufacturing Specifications Data File - B840 This publication provides minimum requirements that plywood panels must meet to qualify for classification as APA 303 Series specialty siding. A Guide To Engineered Wood Products Technical Guides - C800 Describes common engineered wood products: plywood, oriented strand board (OSB), I-joist, glued laminated timber (glulam), structural composite lumber (SCL) and rim board. APA - The Mark of Quality for Wood Structural Panels Technical Guides - X400 This publication explains the APA panel trademark and quality standards for wood structural panels APA Laboratory Testing Capabilities B707 Technical Guides - B707 Learn the APA research facility capabilities, including assembly-level testing of roof and floor building components and performance evaluation of lateral force resisting systems APA Panel-Deck Block Pallet Design and Specifications Technical Guides - V691 Discusses specifications and design details for the APA panel-deck block pallet, including load capacity, nailing schedules and materials handling system compatibility. APA Performance-Rated Wood Structural Panels as Thermal Barriers for Foam Plastics Technical Topic - TT-060 Provides a recommendation for foam plastic roof insulation over minimum Performance Category 15/32 engineered wood panels that meet the 15-minute thermal barrier requirement 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 APA Wall Bracing Calculator Quick Start Guide Technical Guides - Q230 This guide provides basic instructions for using the APA Wall Bracing Calculator Applicability of APA Trademarks on Engineered Wood Products Surface-Coated with Fire Protective Coatings Technical Topic - TT-126 Publication answers common questions about fire-protective coatings. Certification and inspection of products with fire-protective coatings are generally outside the scope of APA. 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. Calculating Fire Resistance of Glulam Beams and Columns Technical Note - Y245 This publication describes the natural fire resistance of glulam beams and columns and provides fire endurance calculation methods Canadian Plywood Grading Guide Technical Guides - Q701 This publication is designed for use by mills as an aid in manufacturing and grading Canadian Standards Association (CSA) plywood panels. Caster Loadings on Plywood Technical Note - X227 This publication discusses recommended maximum caster loadings for various wheel types and sizes on bare plywood, Plyron and overlaid plywood surfaces. Ceramic Tile Over Wood Structural Panel Floors Technical Topic - TT-006 This publication describes Tile Council of North America (TCNA) specifications for wood structural panel floor systems under ceramic tile, tested in accordance with ASTM C627 Containers and Bins Technical Guides - X235 This publication discusses designing, building and specifying wood structural panel containers and bins for industrial materials handling applications. Data File: APA Rim Board in Fire Rated Assemblies Data File - D350 This publication provides recommendations for the use of APA rim board in conjunction with fire-rated wall/floor assemblies, based on the US Forest Product Laboratory testing Decay of Engineered Wood Products Customer Service Tip - W505 This publication discusses the causes of fungal decay in wood structural panels and how proper design, construction and maintenance can prevent fungal decay. Destruction of Insects During Manufacture of Wood Structural Panels and Structural Composite Lumber Technical Topic - TT-014 This publication describes various wood structural panel manufacturing processes that result in the eradication of insects Diaphragm Nail Penetration and 1-5/16-Inch Thick I-Joist Flanges Technical Topic - TT-061 This APA technical publication provides an NDS-backed engineering analysis regarding diaphragm nail penetration and capacity in 1-5/16-inch wood I-joist flanges. Double-Sheathed Shear Walls Technical Topic - TT-115 This technical topic presents the results and discussion of full-scale testing of double-sheathed shear walls with both layers of wood structural panels on a single side. Dusting of Concrete Poured Against Plywood Forms Technical Topic - TT-029 This publication discusses causes of surface dusting on concrete surfaces when poured against plywood forms and provides tips for prevention and remedial action. Effect of Green Lumber Framing on Wood Structural Panel Shear Wall Performance Technical Topic - TT-075 This publication discusses a test program conducted by APA to investigate the effect of constructing shear walls with green framing lumber Effect of Large Diameter Horizontal Holes on the Bending and Shear Properties of Laminated Veneer Lumber (LVL) Technical Note - V900 This publication supplements APA Form G535, providing an analytical tool in situations when horizontal holes in LVL exceeding the prescriptive guidance in APA G535 are necessary Engineered Wood Construction Guide: Roof Construction Excerpt - E30X-RC This publication is an excerpt from the APA Engineered Wood Construction Guide, providing a description and application recommendations for engineered wood roof materials Engineered Wood Handbook & Grade Glossary Technical Guides - X505 This publication provides a list of engineered wood products and common construction terminology explained in easy-to-understand language. Evaluation of Check Size in Glued Laminated Timber Beams Technical Note - R475 This publication discusses checking in glulam beams and includes a flowchart and equations for determining allowable check size Exemption of Special Inspection on Glulam Based on the 2019 California Building Code Technical Topic - TT-108 This publication clarifies the intent of the California Building Code exemption for special inspection on glulam outlined in Section 1705.5.4 FAQs: Questions About Structural Plywood and OSB Performance FAQ - F505 This publication answers questions about structural plywood and OSB panel performance, grade, growth and natural characteristics. FAQs: Questions About Wood Structural Panel Exposure to Excessive Moisture FAQ - X501 This publication provides guidance about the serviceability of wood structural panels (plywood and OSB) after exposure to high levels of moisture. Fastener Loads for Plywood - Screws Technical Note - E830 This publication summarizes APA test data on ultimate withdrawal and ultimate lateral loads for plywood joints fastened with wood screws and sheet metal screws. Field Repairs of Plywood Technical Note - J805 This publication describes methods for field restoration of plywood to near its original condition and appearance Finishing Glued Laminated Timbers Technical Topic - TT-033 This publication discusses recommendations and exceptions for finishing glulam manufactured entirely from solid-sawn lumber. Fire Resistance of Structural Composite Lumber Technical Topic - TT-118 This publication provides a summary of structural composite lumber (SCL) fire performance based on model building codes and research literature. Fire-Retardant-Treated Structural Glued Laminated Timber Technical Topic - TT-127 This publication provides a summary of results of an APA/USDA Forest Product Laboratory pilot test program examining structural properties of Fire-Retardant Treated glulam. Flame Spread Index of APA Performance-Rated Wood Structural Panels Technical Topic - TT-010 This publication summarizes surface burning characteristics (flame spread and smoke development) of wood structural panels tested in accordance with ASTM E84 Flame-Spread Rating for Oriented Strand Board (OSB) Sheathing in Canada Technical Topic - TT-128 This publication discusses the results of a series of CAN/ULC-S102 tests of flame-spread rating (FSR) and smoke developed classification (SDC) for OSB sheathing in Canada Formaldehyde and Engineered Wood Products Technical Note - J330 This publication addresses concerns related to formaldehyde in engineered wood products and explains their exemption from leading formaldehyde emission standards and regulations. 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. Laminated Veneer Lumber Dimension Adjustment Factors for Compliance with NIST Handbook 130 Technical Topic - TT-131 This publication provides procedures for adjusting dimensional measurements of laminated veneer lumber (LVL) in compliance with NIST Handbooks 130 and 133. Materials Handling Technical Guides - M200 This publication discusses the use of APA-trademarked wood structural panels in materials handling applications including pallets, crates, bins, shelving and mezzanine floors. Minimizing Buckling of Wood Structural Panels Technical Note - D481 Provides design and construction practices that reduce the potential for buckling of wood structural panel sheathing caused by wood expansion due to increased moisture conditions. Moisture Exposure Recommendations for Wood Structural Panels Technical Topic - TT-002 This publication provides recommended bond classification appropriate for end use in-service moisture conditions. Moisture-Related Dimensional Stability Technical Topic - TT-028 This publication discusses linear expansion and thickness swell in wood structural panels due to moisture Mulching Engineered Wood Products: An Alternative to Landfills Technical Topic - TT-098 This publication discusses the benefits of mulching construction-related wood scraps, including glued engineered wood products Nail-Base Sheathing for Siding and Trim Attachment Construction Guide Technical Guides - Q250 Determine the type and spacing of siding fasteners to meet building code requirements when using wood structural panel sheathing as a nail base (also called nailable sheathing) Owner's Guide to Understanding Checks in Glued Laminated Timber Technical Guides - F450 This publication addresses common concerns related to checking in glulam and explains how to evaluate if the check effects the glulam’s strength Performance Rated Panels Product Guide - F405 This product guide describes performance standards, applications, trademark and performance category information for APA Performance Rated Panels Plywood Design Specification, Supplement 2-23: Design and Fabrication of Glued Plywood-Lumber Beams Technical Guides - S812 This publication presents the recommended method for the design and fabrication of glued plywood and lumber beams.