WELCOME TO
ALTRA STEEL JOIST AND DECK
SJI and SDI Certified Manufacturer
SJI (Steel Joist Institute) certification serves several important purposes in construction and engineering, related to the design, manufacture and use of joists. Its main benefits are:
- Quality Assurance: Ensures that products meet SJI standards, ensuring their quality and reliability.
- Standards Compliance: Ensures compliance with relevant building codes and regulations.
- Customer Confidence: Provides confidence in the quality and performance of steel joists.
- Improved Manufacturer Credibility: Increases the credibility and reputation of manufacturers in the market.
- Structural Safety: Ensures that joists are designed and manufactured to maximize structural safety.
- Competitive Advantage: Provides an advantage in the market, as buyers prefer certified products.
- Ease of Project Approval: Facilitates project approval by regulatory authorities.
SDI (Steel Deck Institute) certification serves several important purposes in construction, especially in the design, manufacture and use of steel decks. Its main benefits are:
- Quality Assurance: Ensures that products meet SDI standards, ensuring their quality and reliability.
- Standards Compliance: Ensures compliance with relevant building codes and regulations.
- Customer Confidence: Provides confidence in the quality and performance of steel decks.
- Improved Manufacturer Credibility: Increases the credibility and reputation of manufacturers.
- Structural Safety: Ensures that decks are designed and manufactured to maximize structural safety.
- Competitive Advantage: Provides a market advantage, as buyers prefer certified products.
- Ease of Project Approval: Facilitates project approval by regulatory authorities.
SJI & SDI member
What Our Certifications Mean for Your Project
Altra Steel is a member company of both the Steel Joist Institute (SJI) and the Steel Deck Institute (SDI). For you as a contractor, that means products built to the standards your engineer specifies, smoother submittals and a supplier you can verify independently.
Steel Joist Institute
SJI Membership: What It Means for Contractors
Founded in 1928, the Steel Joist Institute maintains the standard specifications that govern how open web steel joists and joist girders are designed and manufactured in North America. Those specifications are referenced by U.S. building codes.
As an SJI member company, Altra designs and fabricates its K, KCS and LH joists and joist girders to those standards.
Verify it yourself: Altra Steel appears in the SJI list of member companies.
SJI member directory ↗- 01
Meets the project specs
Most joist specifications require joists designed and fabricated to SJI standards by an SJI member. Our membership helps your package get through review without substitutions.
- 02
Standard designations
Joists are ordered by SJI designation (for example, 24K8 or 48G8N10K), so what the engineer drew is exactly what arrives on site.
- 03
Clear responsibilities
The SJI Code of Standard Practice defines what the joist manufacturer, engineer of record and erector each handle, reducing disputes on site.
- 04
Safer erection
Bridging requirements and erection-stability provisions follow SJI tables, which helps your crew plan a safe installation.
Steel Deck Institute
SDI Membership: What It Means for Contractors
Since 1939, the Steel Deck Institute has set uniform industry standards for the engineering, design, manufacture and field use of steel roof and floor deck. SDI member companies operate certified deck manufacturing facilities in the United States, Mexico and Canada.
As an SDI member, Altra manufactures its roof, composite and form deck under SDI's material, quality and traceability requirements.
Verify it yourself: Altra Steel appears in the SDI member list.
SDI member list ↗- 01
Audited plant
SDI members pass a plant certification process and are audited at least every two years, from steel sourcing to finished deck.
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Traceable material
Every deck product can be traced back to its original steel coil, which supports material certifications and Buy American documentation.
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Engineering support
SDI members provide engineering support for design and installation questions, before and after delivery.
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Easier approvals
Deck built to SDI standards and the SDI Code of Standard Practice is what most specifications call for, simplifying submittals and inspections.
For your submittals
How to Verify Our Membership
Owners, engineers and inspectors can confirm our status directly with each institute in a couple of minutes.
Open the SJI directory
Go to the SJI members page and find Altra Steel under Member Companies.
Open the SDI member list
On the SDI About page, open the full member list and look for Altra Steel.
Request documentation
Need membership letters or material certifications for your submittal package? Email our estimating team.
Spec compliance
Where You'll See These Requirements
Joist and deck specifications typically include a manufacturer qualification clause similar to this one:
Typical specification requirement:
Manufacturer qualifications: a member of the Steel Joist Institute (joists) / Steel Deck Institute (deck), with products designed and manufactured in accordance with current SJI / SDI standard specifications.
Altra meets this requirement for both joists and deck, so you can source the full package from one certified supplier.