AJS Joists
Boise Cascade AJS Joists
An easy-to-install solution for high-performance floors and roofs available throughout the Northeastern US and Eastern Canada.
Product Overview
AJS® Joists have solid-sawn flanges, made with proprietary MSR (machine stress rated) graded lumber to help ensure the strength and consistency you can count on. The proven web stock and approved structural adhesives provide quality, high-performance floor and roof systems at a cost-competitive with traditional construction materials. With six series available, this complete line of products is well-suited for your next home, multifamily, and light commercial project.
Available in six series: (2 ½″ flange) 140, 150, 20, 190, and deep depth (3 ½″ flange) 25 and 30.
AJS Joist Benefits
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Available Depths:
Deeper Depths – AJS 25 and AJS 30
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High Performance Results
AJS Joists’ longer lengths mean simpler floor/roof layouts and higher floor performance. Plus, AJS joists are consistent from piece to piece, helping to keep floors flat and quiet making customers happy.
Easy Installation
AJS Joists are lightweight and feature solid lumber flange for easy handling and installation. The joists’ 1-1/2″ pre-stamped knockouts and allowances for on-site hole cutting provide for easy routing of wiring, HVAC, and plumbing through the web, speeding construction and reducing labor costs.
All AJS Joists are field trimmable without the need for special tools or skills, and eased edges mean fewer splinters on the job.
Product Literature
| TECH NOTES | > |
|---|---|
| AJS® Joists and Blocking Panels Shear Transfer Equivalency | View |
| BCI® Joist Span to Depth Ratio in BC Calc | View |
| AJS® Joist Slope-Cut Reinforcement | View |
| AJS® Joist Nailed Connection to Hip or Valley Beam | View |
| AJS® Rafter Connection to 2x Ceiling Joists | View |
| Temporary Storage of Gypsum Board on AJS® Joists | View |
| Floor Sheathing Installation Provisions for Composite Action Stiffness | View |
| BCI® Door & Window Header Load Table | View |
| AJS® Rafter Cut Length Calculation | View |
| Fire Exposure of Engineered Wood Products | View |
| Design Live Loads for Residential Floors | View |
| Multiple Ply AJS® Members | View |
| Minor Cuts / Crushing of AJS® Flanges | View |
| AJS® Joist Web Stiffener Requirements | View |
| Temporary Storage of Gypsum Board on AJS® Joists with Shoring | View |
| Web Holes Cut with SawTek® Router | View |
| AJS® Flange Nailing Splits at Bearing Supports | View |
| Requirements for Additional AJS® Joists to Support Parallel Partition Walls | View |
| Web Armor Fire Protection for AJS® Joists Installation Guide | View |
| Analyzing Multiple Web Holes as a Single Encompassing Hole | View |
| Mineral Wool Insulation for Floor Fire Protection Installation Guide | View |
| FireBreak Ceramic Fiber Blanket Protection for AJS® Joists: Installation Guide | View |
| AJS® Knockout and Field-Cut Web Hole Location Provisions | View |
| Drop-In Gypsum Board for Floor Fire Protection Installation Guide | View |
| FireBreak HITS™ Fire Protection for AJS® Joists: Installation Guide | View |
| AJS® 24 FMJ Joist for Fire Protection of Floors Installation Guide | View |
| Rectangular Web Holes in BCI® Joists | View |
| Rounded Rectangular Web Holes in BCI® Joists | View |
| Flange Screw Provisions | View |
| FIRE DESIGN AND INSTALL GUIDE | > |
|---|---|
| Fire Design and Install Guide | View |
Product Literature
| PRODUCT/SPECIFIER/TECHNICAL GUIDES | > |
|---|---|
| CANADA ENGLISH ALLJOIST®, BCI® and VERSA-LAM® Install Guide (ltr size) | View |
| CANADA ENGLISH ALLJOIST® Specifier Guide | View |
| CANADA ENGLISH ALLJOIST® Commercial Guide | View |
| CANADA ENGLISH Fire Design and Install Guide | View |
| CANADA FRENCH ALLJOIST® Specifier Guide | View |
| CANADA FRENCH ALLJOIST®, BCI® and VERSA-LAM® Install Guide (ltr size) | View |
| CANADA FRENCH Fire Design and Install Guide | View |
| TECH NOTES | > |
|---|---|
| AJS® Joists and Blocking Panels Shear Transfer Equivalency | View |
| BCI® Joist Span to Depth Ratio in BC Calc | View |
| AJS® Joist Slope-Cut Reinforcement | View |
| AJS® joist Nailed Connection to Hip or Valley Beam | View |
| AJS® Rafter Connection to 2x Ceiling Joists | View |
| Temporary Storage of Gypsum Board on AJS® Joists | View |
| Floor Sheathing Installation Provisions for Composite Action Stiffness | View |
| BCI® Door & Window Header Load Table | View |
| AJS® Rafter Cut Length Calculation | View |
| Fire Exposure of Engineered Wood Products | View |
| Design Live Loads for Residential Floors | View |
| Multiple Ply AJS® Members | View |
| Minor Cuts / Crushing of AJS® Flanges | View |
| AJS® Joist Web Stiffener Requirements | View |
| Temporary Storage of Gypsum Board on AJS® Joists with Shoring | View |
| Web Holes Cut with SawTek® Router | View |
| AJS® Flange Nailing Splits at Bearing Supports | View |
| Requirements for Additional AJS® Joists to Support Parallel Partition Walls | View |
| Web Armor Fire Protection for AJS® Joists Installation Guide | View |
| Analyzing Multiple Web Holes as a Single Encompassing Hole | View |
| Mineral Wool Insulation for Floor Fire Protection Installation Guide | View |
| FireBreak Ceramic Fiber Blanket Protection for AJS®Joists: Installation Guide | View |
| AJS® Knockout and Field-Cut Web Hole Location Provisions | View |
| Drop-In Gypsum Board for Floor Fire Protection Installation Guide | View |
| FireBreak HITS™ Fire Protection for AJS® Joists: Installation Guide | View |
| AJS® 24 FMJ Joist for Fire Protection of Floors Installation Guide | View |
| Rectangular Web Holes in BCI® Joists | View |
| Rounded Rectangular Web Holes in BCI® Joists | View |
| Flange Screw Provisions | View |
Support You Can Count On
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Lawyer-Free Warranty
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Sustainability Resources
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BC Software
Ready When (and Where) You Are
AJS Joists are sold throughout the Northeastern US and Eastern Canada.
Find a distribution center near you.