Tempered Glass

Certified Safety Glass for Glaziers, OEMs & Fabricators

Overview & Who It’s For

Glenny Glass operates two state-of-the-art tempering furnaces — including the largest in the Midwest, capable of heat treating units up to 106" x 142". Our fully trained team tempers a wide range of flat glass products to industry-leading safety and optical quality standards.

Each unit is tested using:

• Osprey system for detecting optical distortion
• Break-out method to ensure compliance with SGCC certification

We serve:

• Architectural Glazing Contractors
• Commercial Glass Shops
• Shower Door Installers
• Residential Window Manufacturers
• OEMs needing heat-treated safety glass

What We Offer:

• Monolithic Tempered Glass
• Heat-Strengthened Glass
• Tempered IG Units
• Tempered Laminated Products
• Low-E Tempering Capability
• Spandrel & Specialty Tempering
• Available in tints, patterns, and low-iron glass

Capabilities & Specs

Maximum Size:

• 106" x 142" (largest furnace in the Midwest)

Thicknesses Available:

• Monolithic Tempered: 1/8", 5/32", 3/16", 1/4", 3/8", 1/2", 3/4"
• Tempered IG Lites: 1/8", 5/32", 3/16", 1/4"
• Tempered Laminated Lites:
  • 1/8" (1/4" full unit)
  • 3/16" (3/8" full unit)
  • 1/4" (1/2" full unit)

Other Capabilities:

• Edgework: Polished, Seamed, Mitered
• CNC Notching & Drilling
• Low-E Tempering
• Patterns, tints, and decorative finishes available

Resources & Technical Info

Certifications & Compliance:

• SGCC Certified
• ANSI Z97.1
• CPSC 16 CFR 1201

Need Full Specs or Tolerance Details?
Click here for the full list of available tempered glass types.
Contact your Glenny Glass rep for project-specific guidance.

Our Glenny Glass tempered products are certified by the Safety Glazing Certification Council (S.G.C.C.),

"The Safety Glazing Certification Council (SGCC) is a non profit organization that provides the certification in safety glazing materials. The SGCC maintains a certification program under which manufacturers of safety glazing products voluntarily submit their products for testing to an SGCC-approved independent testing laboratory. To ensure continued compliance, SGCC conducts a follow-up program in which random samples of the certified products are re-tested during an unannounced, bi-annual production facility visit."  - SGCC

Our products comply as a safety tempered product with industry standard ANSI Z97.1 and with Consumer Product Safety Commission (CPSC) Federal standard 16 CFR 1201.

Ready to quote a project?

Let us know your requirements — our team is here to help you build it right and deliver on time.

Get Started

Talk to a Glass Expert