Knudson Sheet Metal manufactures high-precision laser-welded and extruded aluminum muntin bars designed to provide timeless elegance, dimensional depth, and structural stability within insulated glass units. From classic colonial flat grids to contoured architectural profiles and heavy-duty arch-bending bars, our complete decorative component portfolio meets every aesthetic requirement.
Laser-Welded Stability & Tight Radius Arch Bending
• Laser-Welded Roll-Formed Muntin Bars: Delivers superior strength and razor-sharp joint integrity to prevent grid rattle or sagging.
• Extruded Contour Profiles (.050″ Wall): Specifically engineered for arch and radius bending down to a tight 4″ radius with zero perimeter distortion.
• Finish Versatility: Available in Painted Polyester, Powder-Coated Aluminum, Clear & Color-In™ Anodized, and authentic Tutone woodgrains.
Features sculpted aerodynamic contours that add depth, dimension, and refined sophistication to insulated window designs.
- Available Sizes: 18mm & 25mm Widths
- Heights: 3.8mm, 5.5mm, 8.0mm
- Finishes: Painted, Anodized, Powder-Coat
Manufactured with heavy wall thickness allowing pristine arch and radius bending down to 4″ radius without web distortion.
- Bending Radius: Down to 4″ Radius
- Dimensions: 5.5x18mm, 8x18mm, 8x25mm
- Application: Eyebrows, Half-Moons, Arches
The standard colonial grid solution. Precision notched for clean intersection crosses with internal locking clips.
- Size Range: 1/8″ x .610″ to 1/2″ x 1″
- Notching: Pre-Notched or Mill Lengths
- Assembly: Internal Crossed Clips
Mix and match woodgrain interiors (Light Oak, Dark Oak) with solid exterior colors to seamlessly match both environments.
- Interior: Woodgrains or Solid Finishes
- Exterior: Custom Color Matched
- Continuity: Zero Bleed Line Technology
Engineered for authentic divided lite architectural aesthetics. Placed between the glass panes to mimic true divided lites.
- Dimensions: .187″ x .500″ to .625″ x .625″
- Finish: Mill Finish, Anodized, Painted
- Profile Style: Trapezoidal & Box SDL
A mere .230″ x 5/16″ profile specifically tailored for French door applications, prairie-style borders, and patio doors.
- Diameter/Width: 5/16″ (7.9mm) & 5.5x7.5mm
- Popular Finishes: Bright Gold, White, Dusty Gray
- Design Use: French Doors & Prairie Grids
Flexible starburst hub accommodating straight-cut flat and contoured muntin bars. Create sunbursts, arches, and quarter moons.
- Prong Options: 1-Prong, 2-Prong, Locator Pad
- Hub Variants: Quarter Hub, Half Hub, 5-Position
- Compatibility: Straight Cut Flat & Contoured
Engineered to anchor muntin bar ends securely into air spacer channels without rattle, vibration, or displacement.
- Types: Finned, Barbed, Stabilizer Pad
- Prongs: 1 or 2 Solid / Barbed Prongs
- Application: Air Spacer Perimeter Anchoring
Saddle clips and internal flat clips engineered for drilled hole intersections, fishmouth contoured joints, and half-moon layouts.
- Designs: Saddle Clips, Internal Flat Clips
- Joint Type: Fishmouth & 90° Cross Intersects
- Locking: Zero Vibration Snap-Fit