From the leader in roll-formed goods comes the best quality screen channel on the market today. Knudson Sheet Metal offers screen channel in multiple profiles with a full line of complementary screen products—including external solid corners with sill lifts, internal aluminum corners, spring stops, pull handles, and vinyl spline systems.
Roll-Formed Thickness & Exacting Manufacturing Tolerances
• Thickness Options: Knudson Screen Channel is available in .0185″, .020″, and .024″ painted and mill finish aluminum.
• Strict Tolerance Standards: Thickness tolerance will not exceed + .0025″, - .0025″.
• Spline Channel Geometry: Uniform roll-formed groove designed for standard vinyl spline (.110″ – .150″) with superior screen tension retention.
The industry-standard profile for residential double-hung, single-hung, and sliding window screens. Features cambered design for optimal cloth tension.
- Wall Thickness: .020″ & .024″ Aluminum
- Dimensions: 7/16″ Width x 3/4″ Depth
- Spline Groove: Accommodates .125″–.140″ Spline
Reduced-thickness channel designed for tight window jamb tolerances, vinyl replacement windows, and slim sash cavities.
- Wall Thickness: .0185″ & .020″
- Dimensions: 5/16″ Width x 3/4″ Depth
- Camber: Precision Bowed for Screen Tension
Features an integrated exterior retention flange that conceals frame edges and prevents light and insect infiltration in window screen pockets.
- Lip Width: 3/16″ Concealing Overhang
- Dimensions: 3/8″ Width x 3/4″ Frame Depth
- Finish: Mill, White, Bronze, Mill
Heavy-duty solid external screen corner featuring a built-in sill lift tab. Eliminates the need for drilling or installing separate screen lift tabs.
- Material: UV-Stabilized High Impact Polymer
- Fitment: 7/16″ & 5/16″ Box Screen Channels
- Feature: Integrated Ergonomic Lift Tab
Integrates spring-stop channels to seat flat tension springs, coupled with an external pull handle for effortless removal and seasonal cleaning.
- Hardware: Houses Tension Springs Securely
- Handle: Contoured Integral Grip Handle
- Sizes: Full Catalog Specification Sizes
Specialized molded casement window corners engineered with exterior/interior locking tabs for hinged and crank-out casement applications.
- Configuration: Sold Together as Left & Right Pair
- Flanges: Available with Inside/Outside Flange
- Application: Wood, Vinyl & Aluminum Casements
Concealed internal corners designed for 45° miter-cut screen channels. Yields a clean, uninterrupted metal exterior on all four window corners.
- Material: Heavy-Gauge Stamped Aluminum
- Look: Completely Hidden from View
- Locking: Friction-Fit Staked Dimples
High-grade vinyl spline engineered with serrated ribs to anchor fiberglass, aluminum, and pet-resistant screen mesh firmly into channel grooves.
- Diameters: .115″, .125″, .140″, .160″, .180″
- Colors: Black, Gray, White UV-Resistant
- Packaging: Bulk Spools & 100-Ft Rolls
Heat-treated stainless steel leaf springs, wire tension springs, friction hangers, and turn buttons engineered for trouble-free screen retention.
- Components: Flat Springs, Wire Springs, Plungers
- Corrosion: 300-Series Stainless Steel
- Kits: Commercial & DIY Bundles Available