Knudson Sheet Metal manufactures laser-welded air spacers in nine distinct profiles and a comprehensive range of widths and materials—from our proprietary Hi-Q nickel-zinc alloy to marine-grade Aluminum and high-durability Stainless Steel (SST). Engineered with tight tolerances to support seamless warm-edge thermal performance for modern insulated glass units.
Precision Engineering Tolerances
• .012″ Hi-Q Steel: Thickness tolerance ± .0005″
• .014″ Clear & Color-In™ Anodized Aluminum: Thickness tolerance ± .0015″ (Standard 1/2 hard temper)
• .016″ Corner Bending Grade: Thickness tolerance ± .0015″ (1/4 hard temper for precise 90° corner bending)
The industry workhorse profile. Designed for traditional assembly with corners, folding keys, and robotic sealant application.
- Width Range: 3/16″ – 7/8″ (5mm – 20mm)
- Spacer Height: .315″ (8mm)
- Corner Bending: Available (1/4 Hard)
Sharp, defined rectangular design to maximize internal desiccant capacity while fitting precision IG sealant channels.
- Width Range: 3/16″ – 27/32″ (5mm – 20mm)
- Spacer Height: .315″ (8mm)
- Joint Type: Folding w/ Fin & Vent
Low Profile Deep design engineered to reduce sightline visibility and boost edge thermal performance.
- Width Range: 7/32″ – 13/16″ (5.5mm – 20mm)
- Spacer Height: .240″ (6.10mm)
- Sightline: Reduced Exposure
Expanded range width profile engineered for high-span architectural glass units and commercial facades.
- Width Range: 5/32″ – 1.004″ (4mm – 25.5mm)
- Spacer Height: .240″ (6.10mm)
- Compatibility: Gas Retention Systems
Specialized chamfered edge geometry providing optimum secondary seal bite and clean perimeter alignment.
- Width Range: 1/4″ – 3/4″ (8mm – 19mm)
- Spacer Height: .315″ (8mm)
- Fitting System: Ultra-Loc BI Connectors
Heavy-duty insulated glass profile with enhanced gas-path resistance and superior desiccant retention.
- Width Range: 7/32″ – 13/16″ (5.5mm – 20mm)
- Spacer Height: .315″ (8mm)
- Gas Seal: Long Gas Path (LGP) Option