Engineered Wood for Structural Framing

Boise Cascade Engineered Wood Products for Load-Rated Frames

Specification teams choose Boise Cascade when floor systems, roof beams, and panelized walls need published span tables, verified dimensional stability, and mill-traceable fiber. Pair LVL, I-joists, and structural plywood with compressive strength targets that keep schedules intact from takeoff through final inspection.

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Engineered wood I-joists staged on a residential framing jobsite

Cross section of laminated veneer lumber beam in mill QC

Performance Architecture

Why Structural Teams Specify Boise Cascade

Every product line ships with engineering notes that help structural engineers and procurement managers balance load bearing capacity, fire resistance rating pathways, and moisture vapor transmission expectations before lumber hits the deck.

01

Published span intelligence

Digital and printed span tables map joist depth, spacing, and live-load cases so design teams can lock framing early without speculative oversizing.
02

Dimensional stability under field moisture

Kiln schedules and resin systems reduce cupping risk on panels exposed during weather windows common to multifamily and modular yards.
03

Traceable certified fiber

FSC Chain of Custody and PEFC pathways support LEED documentation without forcing a sustainability versus cost compromise on every SKU.
04

Mill network response

Thirty-seven manufacturing plants across North America shorten lead times when Buy America preferences and domestic sourcing clauses apply.
05

Hybrid framing readiness

Detailing notes support wood-to-steel interfaces so architects can keep warm interiors without sacrificing flexural strength at long spans.

Comparative Spec Snapshot

LVL Beam vs I-Joist Selection Guide

Use this side-by-side view when deciding between solid LVL members and I-joist floor systems. Values illustrate typical published ranges; always confirm the mill-specific APA EWS report for your project.

Parameter	Boise Cascade LVL Beams	Boise Cascade I-Joists
Primary use	Headers, beams, columns	Floor and roof joists
Compressive strength pathway	High parallel-to-grain capacity for posts	Optimized flange-web system for bending
Typical depths	3-1/2" to 7" widths, multiple depths	9-1/2" to 16" common residential depths
Fire resistance rating notes	Assemblies documented via ICC-ES ESR details	Rim and blocking details for rated floor packages
Service life expectancy focus	Protected structural interiors	Ventilated cavities with moisture control
Embodied carbon advantage	High fiber utilization vs solid sawn beams	Lower mass per span foot than solid joists

Application Grid

Where Boise Cascade Framing Systems Work

From stick-built neighborhoods to factory modular lines, product selection tracks the real constraints of each delivery method.

Residential Framing

Single-family and townhome floors with predictable deflection for tile and hardwood finishes.

Multifamily Pods

Repetitive bay layouts that keep acoustic and fire assemblies aligned across stacked units.

Commercial Shells

Long-span roof and mezzanine packages where hybrid wood-steel detailing reduces thermal bridging.

Modular Factories

Tight tolerance panels and joists that survive transport vibration without racking.

Remodel Retrofits

LVL sisters and headers that match existing openings without full tear-out.

Light Industrial

Clear-span mezzanines needing documented impact resistance and fastener schedules.

Credentials

Third-Party Verified Manufacturing Controls

Boise Cascade maintains certification pathways that specification writers can cite in Division 06 packages without vague green claims.

FSC Chain of Custody

Fiber tracking for projects that require certified sustainable forest inputs and audit-ready documentation.

PEFC Certified

Alternate chain-of-custody route for owners preferring PEFC market recognition on panel and lumber lots.

APA EWS

Engineered Wood Systems marks confirming design values used in published span and connection tables.

ICC-ES ESR

Evaluation reports supporting code officials reviewing fire assemblies and alternative methods.

Operating Footprint

Boise Cascade by the Numbers

1957

Founded

Manufacturing Plants

States Served

95%

Certified Fiber Share

Ready to Lock Structural Specs with Boise Cascade?

Share your span tables, fire resistance rating goals, and delivery window. Our project desk returns mill-aligned options for panels, LVL, and I-joists within one business day on standard inquiries.

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