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BCI Joists

Boise Cascade BCI Joists

Give your customers the quiet, stable floors they want without sacrificing the strength, spans, and ease of handling you need.

Product Overview

floor framing with Boise Cascade BCI joists

High-performance floors start with BCI® Joists. With 20% greater strength than comparably-sized dimensional lumber, BCI Joists allow for long spans with little to no twisting, shrinking, or bowing. The result? Consistency and performance from piece to piece, keeping homes square, floors flat and quiet, and — most importantly — the builder’s reputation intact.

Available in standard depths ranging from 9 ½″ to 20″ providing the long spans needed for your next project.

BCI Joist Benefits:

  • Greater strength = longer spans
  • Lightweight for easier handling
  • Engineered and manufactured for consistency
  • Use with BC software for engineering analysis
  • Forest-friendly sustainability
  • Flanges made with industry-leading Versa-Lam® LVL

Goodbye Bouncy Floors

BCI Joists make it easy and cost-effective to reduce floor vibration and improve customer satisfaction. No more bounce. No more squeaks. Just quiet, solid floors that stand the test of time. Better yet, with the help of Boise Cascade® software suite, you can design, size, and analyze with just a few clicks.

Product Literature

PRODUCT/SPECIFIER/TECHNICAL GUIDES
>
Eastern BCI® and VERSA-LAM® Specifier Guide View
Eastern Commercial Guide View
Eastern BCI® and VERSA-LAM® Builder Guide View
Eastern BCI® and VERSA-LAM® Install Guide (ltr size) View
Fire Design and Install Guide View
CODE REPORTS
>
ICC-ES Report ESR-1336 BCI Fabricated Wood I-Joists View
ICC-ES VAR Environmental Report VAR-1017 View
TECH NOTES - GENERAL ENGINEERING
>
Weights of Building Materials – GE-1 View
Brick Veneer Support on Wood – GE-2 View
Allowable Fastener Spacing & Design for BCI Joists and VERSA-LAM – GE-3 View
BCI / AJS Joist, VERSA-LAM & BOISE GLULAM Exterior Exposure Policy – GE-4 View
Required Separation Between Garage and Living Space Above – GE-5 View
Designing for Ceramic or Stone Tile Floor Finishes – GE-6 View
Rafter Bracing and Kneewall Loads – GE-8 View
Feet & Inches on a Regular Calculator – GE-9 View
Temperature and Moisture Content of Engineered Wood Products During Manufacturing – GE-10 View
High Slope Roofs – GE-12 View
Flame Spread Classifications and Corresponding Surface Treatments – GE-13 View
Formaldehyde & Engineered Wood Products – GE-15 View
Lateral Bracing of Joists and Beams – GE-16 View
Use of Engineered Wood Products in International Shipping Pallets and Packaging – GE-17 View
Wood Frame Garage Floor Design Guidelines – GE-19 View
Insect-Treated Engineered Wood Products Approved for Hawaii – GE-21 View
Design Load Considerations for Non-Load Bearing Partition Walls in Residental Construction – GE-22 View
Vertical Load Transfer over Bearings within BC FRAMER & BC CALC – GE-23 View
Use of Boise Cascade EWP for Concrete Formwork – GE-24 View
Pressure and Topical Applications and Treatments – GE-25 View
PreserveTech HW / Royal Pacific Industries Insect-Treated Engineered Wood Products for Hawaii – GE-26 View
Electrical Wiring Installation Horizontal Holes – GE-27 View
Installed Damaged Product – GE-28 View
TECH NOTES - BCI Joists
>
BCI® Joists and Blocking Panels Shear Transfer Equivalency - IJ-1 View
BCI® Joist Span to Depth Ratio in BC Calc® - IJ-2 View
BCI® & AJS® Joist Slope-Cut Reinforcement - IJ-3 View
BCI® Joist Nailed Connection to Hip or Valley Beam - IJ-5 View
BCI® Rafter Connection to 2x Ceiling Joists -IJ-6 View
Temporary Storage of Gypsum Board on BCI® Joists - IJ-7 View
Floor Sheathing Installation Provisions for Composite Action Stiffness - IJ-8 View
BCI® Door & Window Header Load Table - IJ-9 View
BCI® Rafter Cut Length Calculation - IJ-10 View
Fire Exposure of Engineered Wood Products - IJ-11 View
Design Live Loads for Residential Floors - IJ-12 View
Multiple Ply BCI® Members - IJ-13 View
Minor Cuts / Crushing of BCI® Flanges - IJ-14 View
BCI® Joist Web Stiffener Requirements - IJ-16 View
Temporary Storage of Gypsum Board on BCI® Joists with Shoring - IJ-19 View
Web Holes Cut with SawTek™ Router - IJ-20 View
BCI® Flange Nailing Splits at Bearing Supports - IJ-21 View
Requirements for Additional BCI® Joists to Support Parallel Partition Walls - IJ-22 View
Web Armor Fire Protection for BCI® Joists Installation Guide - IJ-23 View
Analyzing Multiple Web Holes as a Single Encompassing Hole - IJ-24 View
Mineral Wool Insulation for Fire Protection of Floors Installation Guide - IJ-25 View
FireBreak® Ceramic Fiber Blanket Protection for BCI® Joists: Installation Guide - IJ-26 View
BCI® Knockout and Field-Cut Web Hole Location Provisions - IJ-27 View
Drop-In Gypsum Board for Floor Fire Protection Installation Guide - IJ-28 View
FireBreak HITS Fire Protection for AJS Joists: Installation Guide – IJ-29 View
Rectangular Web Holes in BCI® Joists - IJ-31 View
Rounded Rectangular Web Holes in BCI® Joists - IJ-33 View
Flange Screw Provisions - IJ-34 View
Safety Data Sheets
>
SDS Engineered Wood Products View
SDS Wood Dust View

Product Literature

Western BCI® and VERSA-LAM® Specifier Guide
>
Western BCI® and VERSA-LAM® Specifier Guide View
Western Commercial Guide View
Western BCI® and VERSA-LAM® Builder Guide View
Western BCI® and VERSA-LAM® Install Guide (ltr size) View
Fire Design and Install Guide View
CODE REPORTS
>
ICC-ES Report ESR-1336 BCI Fabricated Wood I-Joists View
ICC-ES VAR Environmental Report VAR-1017 View
TECH NOTES - GENERAL ENGINEERING
>
Weights of Building Materials – GE-1 View
Brick Veneer Support on Wood – GE-2 View
Allowable Fastener Spacing & Design for BCI Joists and VERSA-LAM – GE-3 View
BCI / AJS Joist, VERSA-LAM & BOISE GLULAM Exterior Exposure Policy – GE-4 View
Required Separation Between Garage and Living Space Above – GE-5 View
Designing for Ceramic or Stone Tile Floor Finishes – GE-6 View
Rafter Bracing and Kneewall Loads – GE-8 View
Feet & Inches on a Regular Calculator – GE-9 View
Temperature and Moisture Content of Engineered Wood Products During Manufacturing – GE-10 View
High Slope Roofs – GE-12 View
Flame Spread Classifications and Corresponding Surface Treatments – GE-13 View
Formaldehyde & Engineered Wood Products – GE-15 View
Lateral Bracing of Joists and Beams – GE-16 View
Use of Engineered Wood Products in International Shipping Pallets and Packaging – GE-17 View
Wood Frame Garage Floor Design Guidelines – GE-19 View
Insect-Treated Engineered Wood Products Approved for Hawaii – GE-21 View
Design Load Considerations for Non-Load Bearing Partition Walls in Residental Construction – GE-22 View
Vertical Load Transfer over Bearings within BC FRAMER & BC CALC – GE-23 View
Use of Boise Cascade EWP for Concrete Formwork – GE-24 View
Pressure and Topical Applications and Treatments – GE-25 View
PreserveTech HW / Royal Pacific Industries Insect-Treated Engineered Wood Products for Hawaii – GE-26 View
Electrical Wiring Installation Horizontal Holes – GE-27 View
Installed Damaged Product – GE-28 View
TECH NOTES - BCI Joists
>
BCI® Joists and Blocking Panels Shear Transfer Equivalency - IJ-1 View
BCI® Joist Span to Depth Ratio in BC Calc® - IJ-2 View
BCI® Joist Slope-Cut Reinforcement - IJ-3 View
BCI® Joist Nailed Connection to Hip or Valley Beam - IJ-5 View
BCI® Rafter Connection to 2x Ceiling Joists - IJ-6 View
Temporary Storage of Gypsum Board on BCI® Joists - IJ-7 View
Floor Sheathing Installation Provisions for Composite Action Stiffness - IJ-8 View
BCI® Door & Window Header Load Table - IJ-9 View
BCI® Rafter Cut Length Calculation - IJ-10 View
Fire Exposure of Engineered Wood Products - IJ-11 View
Design Live Loads for Residential Floors - IJ-12 View
Multiple Ply BCI® Members - IJ-13 View
Minor Cuts / Crushing of BCI® Flanges - IJ-14 View
BCI® Joist Web Stiffener Requirements - IJ-16 View
Temporary Storage of Gypsum Board on BCI® Joists with Shoring - IJ-19 View
Web Holes Cut with SawTek™ Router - IJ-20 View
BCI® Flange Nailing Splits at Bearing Supports - IJ-21 View
Requirements for Additional BCI® Joists to Support Parallel Partition Walls - IJ-22 View
Web Armor Fire Protection for BCI® Joists Installation Guide - IJ-23 View
Analyzing Multiple Web Holes as a Single Encompassing Hole - IJ-24 View
Mineral Wool Insulation for Fire Protection of Floors Installation Guide - IJ-25 View
FireBreak® Ceramic Fiber Blanket Protection for BCI® Joists: Installation Guide - IJ-26 View
BCI® Knockout and Field cut Web Hole Location Provisions - IJ-27 View
Drop-In Gypsum Board for Floor Fire Protection Installation Guide - IJ-28 View
Rectangular Web Holes in BCI® Joists - IJ-31 View
Rounded Rectangular Web Holes in BCI® Joists - IJ-33 View
Flange Screw Provisions - IJ-34 View
Safety Data Sheets
>
SDS Engineered Wood Products View
SDS Wood Dust View

Product Literature

PRODUCT/SPECIFIER/TECHNICAL GUIDES
>
BCI® East Specifier Guide View
ALLJOIST® VERSA-LAM® BCI® Install Guide – Letter Sized View
BCI® East Specifier Guide View
ALLJOIST® VERSA-LAM® BCI® Install Guide – Letter Sized View
English Fire Design and Install Guide View
French Fire Design and Install Guide View
CODE REPORTS
>
CCMC Report 13300E
French version not available at this time, please use English version		 View
TECH NOTES - GENERAL ENGINEERING
>
Weights of Building Materials – GE(CAN)-1 View
Flame Spread and Fire Endurance: Surface Coatings – GE(CAN)-2 View
Allowable Nail Spacing & Designfor AJS® / BCI® Joists and Versa-L am® LVL – GE(CAN)-3 View
BCI / AJS Joist, VERSA-LAM & BOISE GLULAM Exterior Exposure Policy – GE(CAN)-4 View
Joist Ceiling Framing Over an Indoor Pool – GE(CAN)-5 View
Formaldehyde & Engineered Wood Products – GE(CAN)-15 View
Lateral Bracing of Joists and Beams – GE(CAN)-16 View
Vertical Load Transfer over Bearings within BC FRAMER & BC CALC – GE(CAN)-23 View
Pressure and Topical Applications and Treatments – GE(CAN)-25 View
TECH NOTES - BCI JOISTS
>
BCI® Joists and Blocking Panels Shear Transfer Equivalency View
BCI® Joist Span to Depth Ratio in BC Calc® View
BCI® Joist Slope-Cut Reinforcement View
BCI® Joist Nailed Connection to Hip or Valley Beam View
BCI® Rafter Connection to 2x Ceiling Joists View
Temporary Storage of Gypsum Board on BCI® Joists View
Floor Sheathing Installation Provisions for Composite Action Stiffness View
BCI® Door & Window Header Load Table View
BCI® Rafter Cut Length Calculation View
Fire Exposure of Engineered Wood Products View
Design Live Loads for Residential Floors View
Multiple Ply BCI® Members View
Minor Cuts / Crushing of BCI® Flanges View
BCI® Joist Web Stiffener Requirements View
Temporary Storage of Gypsum Board on BCI® Joists with Shoring View
Web Holes Cut with SawTek™ Router View
BCI® Flange Nailing Splits at Bearing Supports View
Requirements for Additional BCI® Joists to Support Parallel Partition Walls View
Web Armor Fire Protection for BCI® Joists Installation Guide View
Analyzing Multiple Web Holes as a Single Encompassing Hole View
Mineral Wool Insulation for Fire Protection of Floors Installation Guide View
FireBreak® Ceramic Fiber Blanket Protection for BCI® Joists: Installation Guide View
BCI® Knockout and Field cut Web Hole Location Provisions View
Drop-In Gypsum Board for Floor Fire Protection 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
Minor Cuts / Crushing of Boise I-Joist Flanges – IJ(CAN)-1 View
Higher Floor Performance – IJ(CAN)-2 View
BCI® & AJS® Joist – Hole Close to End Bearing: Repair Detail – IJ(CAN)-3 View
BCI® & AJS® Joist – Half Notched Top Flange Near Bearing Repair – IJ(CAN)-4 View
Floor Panel Installation Provisionsfor Composite Action (Glued & Nailed) – IJ(CAN)-5 View
End Wall Blocking – IJ(CAN)-6 View
Blocking at Interior Supports for Continuous or Cantilevered Joists – IJ(CAN)-7 View
Split Joists at Interior Supports – IJ(CAN)-8 View
Lapped Joist Bearing at Interior Supports – IJ(CAN)-9 View
BCI® & AJS® Joists: Fire/Bevel-Cuts – IJ(CAN)-10 View
BRICK-LEDGE CANTILEVERS – IJ(CAN)-11 View
BCI® & AJS® Joist Small Notch in Top Flange Repair – IJ(CAN)-12 View
Multiple Ply BCI / AJS Members – IJ(CAN)-13 View
AJS/BCI® Joist – Horizontal/Vertical Split in The Bottom/Top Flange: Repair Details – IJ(CAN)-14 View
Designing for Ceramic or Stone Tile Floor Finishes – IJ(CAN)-15 View
Interior Connection: Notched Post Glued and Bolted to Rim Joist – IJ(CAN)-16 View
Headout Detail for Damaged BCI® or AJS® joists – IJ(CAN)-17 View
Horizontal Diaphragm Designed with BCI® joists – IJ(CAN)-18 View
New BCI® / AJS® Joist Installed for Damaged – IJ(CAN)-19 View
AJS®/ BCI® Joists Knockout and Field-Cut Web Hole Location Provisions – IJ(CAN)-20 View
Suspended Ceiling Details for AJS® or BCI® Joists – IJ(CAN)-21 View
Sprinkler Attachment Details – IJ(CAN)-22 View
AJS® / BCI® Joists to Steel Beam: - Hanger Connections – IJ(CAN)-23 View
Location and Shapes of AJS® / BCI® Web Holes – IJ(CAN)-24 View
Double AJS® Joist Without Filler Block Detail – IJ(CAN)-25 View
Versa-Lam® Installed for Damaged AJS® / BCI® Joist – IJ(CAN)-26 View
AJS® & BCI® Joist Web Restoration Detail – IJ(CAN)-27 View
BCI® & AJS® Joist – 1/2” Deep Notch Top Flange Near Bearing – IJ(CAN)-28 View
Drain Pipe at the Joist Location – IJ(CAN)-29 View

Product Literature

PRODUCT/SPECIFIER/TECHNICAL GUIDES
>
Western BCI® Specifier Guide View
ALLJOIST® VERSA-LAM® BCI® Install Guide – Letter Sized View
Fire Design and Install Guide View
CODE REPORTS
>
CCMC Report 13300E View
TECH NOTES - GENERAL ENGINEERING
>
Weights of Building Materials – GE(CAN)-1 View
Flame Spread and Fire Endurance: Surface Coatings – GE(CAN)-2 View
Allowable Nail Spacing & Designfor AJS® / BCI® Joists and Versa-L am® LVL – GE(CAN)-3 View
BCI / AJS Joist, VERSA-LAM & BOISE GLULAM Exterior Exposure Policy – GE(CAN)-4 View
Joist Ceiling Framing Over an Indoor Pool – GE(CAN)-5 View
Formaldehyde & Engineered Wood Products – GE(CAN)-15 View
Lateral Bracing of Joists and Beams – GE(CAN)-16 View
Vertical Load Transfer over Bearings within BC FRAMER & BC CALC – GE(CAN)-23 View
Pressure and Topical Applications and Treatments – GE(CAN)-25 View
TECH NOTES - BCI JOISTS
>
BCI® Joists and Blocking Panels Shear Transfer Equivalency View
BCI® Joist Span to Depth Ratio in BC Calc® View
BCI® Joist Slope-Cut Reinforcement View
BCI® Joist Nailed Connection to Hip or Valley Beam View
BCI® Rafter Connection to 2x Ceiling Joists View
Temporary Storage of Gypsum Board on BCI® Joists View
Floor Sheathing Installation Provisions for Composite Action Stiffness View
BCI® Door & Window Header Load Table View
BCI® Rafter Cut Length Calculation View
Fire Exposure of Engineered Wood Products View
Design Live Loads for Residential Floors View
Multiple Ply BCI® Members View
Minor Cuts / Crushing of BCI® Flanges View
BCI® Joist Web Stiffener Requirements View
Temporary Storage of Gypsum Board on BCI® Joists with Shoring View
Web Holes Cut with SawTek™ Router View
BCI® Flange Nailing Splits at Bearing Supports View
Requirements for Additional BCI® Joists to Support Parallel Partition Walls View
Web Armor Fire Protection for BCI® Joists Installation Guide View
Analyzing Multiple Web Holes as a Single Encompassing Hole View
Mineral Wool Insulation for Fire Protection of Floors Installation Guide View
FireBreak® Ceramic Fiber Blanket Protection for BCI® Joists: Installation Guide View
BCI® Knockout and Field cut Web Hole Location Provisions View
Drop-In Gypsum Board for Floor Fire Protection Installation Guide View
Rectangular Web Holes in BCI® Joists View
Rounded Rectangular Web Holes in BCI® Joists View
Flange Screw Provisions View
Minor Cuts / Crushing of Boise I-Joist Flanges – IJ(CAN)-1 View
Higher Floor Performance – IJ(CAN)-2 View
BCI® & AJS® Joist – Hole Close to End Bearing: Repair Detail – IJ(CAN)-3 View
BCI® & AJS® Joist – Half Notched Top Flange Near Bearing Repair – IJ(CAN)-4 View
Floor Panel Installation Provisionsfor Composite Action (Glued & Nailed) – IJ(CAN)-5 View
End Wall Blocking – IJ(CAN)-6 View
Blocking at Interior Supports for Continuous or Cantilevered Joists – IJ(CAN)-7 View
Split Joists at Interior Supports – IJ(CAN)-8 View
Lapped Joist Bearing at Interior Supports – IJ(CAN)-9 View
BCI® & AJS® Joists: Fire/Bevel-Cuts – IJ(CAN)-10 View
BRICK-LEDGE CANTILEVERS – IJ(CAN)-11 View
BCI® & AJS® Joist Small Notch in Top Flange Repair – IJ(CAN)-12 View
Multiple Ply BCI / AJS Members – IJ(CAN)-13 View
AJS/BCI® Joist – Horizontal/Vertical Split in The Bottom/Top Flange: Repair Details – IJ(CAN)-14 View
Designing for Ceramic or Stone Tile Floor Finishes – IJ(CAN)-15 View
Interior Connection: Notched Post Glued and Bolted to Rim Joist – IJ(CAN)-16 View
Headout Detail for Damaged BCI® or AJS® joists – IJ(CAN)-17 View
Horizontal Diaphragm Designed with BCI® joists – IJ(CAN)-18 View
New BCI® / AJS® Joist Installed for Damaged – IJ(CAN)-19 View
AJS®/ BCI® Joists Knockout and Field-Cut Web Hole Location Provisions – IJ(CAN)-20 View
Suspended Ceiling Details for AJS® or BCI® Joists – IJ(CAN)-21 View
Sprinkler Attachment Details – IJ(CAN)-22 View
AJS® / BCI® Joists to Steel Beam: - Hanger Connections – IJ(CAN)-23 View
Location and Shapes of AJS® / BCI® Web Holes – IJ(CAN)-24 View
Double AJS® Joist Without Filler Block Detail – IJ(CAN)-25 View
Versa-Lam® Installed for Damaged AJS® / BCI® Joist – IJ(CAN)-26 View
AJS® & BCI® Joist Web Restoration Detail – IJ(CAN)-27 View
BCI® & AJS® Joist – 1/2” Deep Notch Top Flange Near Bearing – IJ(CAN)-28 View
Drain Pipe at the Joist Location – IJ(CAN)-29 View

Learn All You Need to Know About I-Joists

As an engineered wood product, I-joists offer better consistency and strength while weighing less. Did you know all the I-joist uses, and benefits, or how they’re made? We’ve got all the details right here.

I-Joist 101

Easier, Faster Installation


  • Wider nailing surface for faster installation

  • Electrical knockouts reduce labor costs

  • Easily cut holes in the webbing for HVAC and plumbing

  • Field-trimmable without the need for special tools

  • Eased edges for fewer splinters on the job


Support You Can Count On

Faster. Stronger. Easier.

 

Ready When (and Where) You Are

BCI Joists are sold throughout the United States and Canada.

Find a distribution center near you.

Where to Buy