AIA Course BLS100 1 LU + 1 HSW

Weyerhaeuser is a Registered Provider with The American Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request. This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. Thank you!

 Recognize the advantages of specifying engineered lumber.  Identify common engineered lumber types, including:  product composition  typical sizes  design properties  Recognize the common applications for engineered lumber products.  Know what to watch out for: special requirements that apply to Engineered Lumber Products.

 More efficient use of wood fiber, availability, & building trends  Predictable design values  Dimensionally stable  Allows for larger holes to accommodate mechanicals within joist cavities

Parallel Strand Lumber Laminated Strand Lumber Laminated Veneer Lumber Wooden I-Joists

HEADERS AND BEAMSEXTERIOR DECK POSTS AND BEAMS HIGH MOISTURE ENVIRONMENTS EXPOSED BEAMS AND COLUMNS

D W * CAUTION! Treated products vary in size and availability by market and manufacturer. Confirm availability before specifying!  Widths  2 11 ⁄ 16 ”  3 1⁄2”  5 1⁄4”  7"  Depths  9 1⁄4”  9 1⁄2”  11 1⁄4”  11 7⁄8”  14”  16”  18”

 3 1⁄2” x 3 1⁄2”  3 1⁄2” x 5 1⁄4”  3 1⁄2” x 7”  5 1⁄4” x 5 1⁄4”  5 1⁄4” x 7”  7” x 7” W1W1 W2W2 Column Sizes

 LARGE LOADS - Supports heavier loads than comparably sized conventional Glulam or solid-sawn lumber  EXPOSED  LONG SPANS - Supports long spans for open floor plans - Exposed PSL beams add aesthetic value  CANTILEVERS/ MULTI-SPAN - Excellent for cantilever & multi-span applications  EXTERIOR - Can be treated for exterior uses (regional)

BEAMS HEADERS

Depths:  5 ½”  7 ¼”  9 ½”  11 7 / 8 ”  14”  16”  18” Width: 1 ¾” (common to use multi-ply members)

 MULTI-PLY APPLICATIONS  PREDICTABLE PERFORMANCE  STRAIGHT/TRUE - Up to 4 members can be site-connected - No significant effect from lumber defects - No bowing, shrinking, or twisting  S TRENGTH/WEIGHT - Supports heavier loads than comparably sized conventional lumber

HEADERS BEAMS WALL FRAMING RIM BOARDCOLUMNSSTAIR STRINGERS ROOF JOISTS

Widths  1 ¾”  3 ½” Depths  43⁄8”  51⁄2”  71⁄4”  85⁄8”  9 1⁄4 ” HEADERS AND BEAMS RIM BOARD  9 1⁄2”  11 ½”  14”  16” Depths STUDS Sections  2x4  2x6  1¾” x 5½”  2x8  1¾” x 7¼” Lengths  2x4 – 14’  2x6 – 22’  2x8 – 30’  9 1⁄2”  11 1⁄4”  11 7⁄8”  14”  16 ” Widths  1 ¼”  1 1 / 8 ” * * The lateral load transfer capacity of thinner rim boards is not equivalent to 2" nominal framing and is limited by code to 180 plf.

 CONSISTENT /UNIFORM - No shimming on headers or studs; eliminates culls  TALL WALLS - Dimensional stability results in solid, straight walls - Eliminates the “hinge” point in tall walls  S TRAIGHT/TRUE

 STRENGTH (SHORT SPANS) - Comparable to conventional lumber for most residential header/beam spans - No shimming  ONE-PIECE HEADERS - Convenient widths  HOLES - Large hole capacity  CONSISTENT /UNIFORM

 LONG SECTIONS - Longer pieces for faster installation reducing labor and materials costs  STRENGTH - Higher diaphragm shear values than 11⁄8" OSB; Stronger than comparably sized conventional lumber  NAILING - Provides a wider nailing surface for subfloor panels; Superior fastener retention minimizes squeaks

 LSL - Strong  Most residential loads and spans  Thicknesses good for one-piece headers  Large hole capability  Superior fastener retention minimizes squeaks  Warp resistance good for straight walls / tall walls  Size for size, stronger than dimensional lumber  Reduces aesthetic blemishes (drywall cracks, etc.)  LVL - Stronger  Deeper depths  Versatile, multi-ply applications  Available with water sealant  PSL - Strongest  Large beams, heavy loads  Exposed beams, treated applications

ProductM.O.EFbFvBeamHeaderColumn/Stud LSL1.3 E BEST 1.55 E GOODBEST LVL1.9 E BETTERGOOD PSL2.0 E BEST G OOD FOR L ARGE 1.8 E BEST √

Product Beams/Header JoistsExposedExterior Column /Post Tall Wall StudRim Stair stringer Short span Long span LSL LVL PSL I-joist √√√√√ √√√√ √√√√ √√ √

Flange Web Flange Web

FLOORSROOFS RIM

 LONG SPANS  PREDICTABLE PERFORMANCE  STRAIGHT/TRUE - Can be used for longer spans than comparably sized conventional lumber - No significant effect from lumber defects - No bowing, shrinking, or twisting  STRENGTH/WEIGHT - Supports heavier loads than comparably sized conventional lumber

L OAD

T E NSI O N COMPRESSION L OAD Zero Stress in Bending

29 Load Deflection DEFLECTION

30 The curvature built into a member usually for the purpose of offsetting sag. Camber CAMBER

Flange and web dimensions and material can vary between manufacturers! ≠

Use the appropriate manufacturer’s proprietary design values and details when specifying. 1-3/4” 1-1/2” 9-1/2” 11-7/8” 14” 3/8 ” 2-5/16” 1-3/8” 9-1/2” 11-7/8” 14” 16” 1-3/4” 9-1/2” 11-7/8” 3/8 ” 1-3/8” This includes:  Span & PLF tables  Allowable hole charts  Installation & connection details

L ENGTH Length measured along the member from end to end. Used for ordering material. S PAN The horizontally projected distance between member supports. Used for sizing calculations. Clear Span Length Design Span Out-to-Out

Simple Span Span Continuous Span

Nail into plate w/1 [0.131” x 3”] from end into plate DO NOT Nail into plate w/multiple nails

 Up to 4 members can be site-connected  Depths 16” and over must include at least two plies  Side-loaded beams require additional connection detailing  Consult manufacturer’s representative or literature Note: Illustration for purpose of example only

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45 o Application MUST be looked at with software ! S LIGHT OFFSET WITH I- JOISTS :  Shear transfer through web  Web knifing

 Name some advantages of specifying:  Parallel Strand Lumber (PSL)  Laminated Veneer Lumber (LVL)  Laminated Strand Lumber (LSL)  Which engineered wood product is best for:  Long-span joists?  Exterior column?  Short-span header over a kitchen window?  Rim?  What considerations must be made concerning i-joist floors with walls above?

Q UESTIONS ?

E. Orchard Rd., Suite 200 Greenwood Village, CO This concludes the American Institute of Architects Continuing Education System Program