Selecting the right aluminum insect screen extrusion determines both workshop fabrication speed and long-term structural stability in the field. Specifying an under-gauged frame on a wide patio door leads to inward "hourglass" bowing as soon as mesh spline is rolled—while over-specifying heavy profiles on compact bathroom vents wastes raw material margin. This engineering guide details how wholesale fabricators and distributors match cross-section geometry, wall thickness, and temper to every architectural opening.
1. Primary EN AW-6063 T5 Metallurgy vs. Recycled Scrap
True architectural rigidity begins at the billet casting stage. All 68 dies in our Extrusion Catalog are pressed exclusively from primary EN AW-6063 (AlMg0.7Si / AA 6063) billet and artificially aged in 185°C ovens to T5 temper (10–12 Webster / 68–75 HB):
- Surface Smoothness for Powder & Anodizing: Low iron and tramp-element chemistry eliminates surface die lines and orange-peel defects under 60–80 μm Qualicoat powder coats or EV1 matte anodizing.
- Corner-Key Impact Toughness: Secondary high-scrap billets turn brittle, causing hollow corners to split when friction-fit PA6 polyamide or zinc corner keys are tapped in during rapid assembly.
- DIN EN 755-9 Dimensional Precision: Consistent ±0.05 mm wall tolerances guarantee that corner keys, roller carriages, and 4.5 mm EPDM splines lock with uniform friction from batch to batch.
2. Matching Cross-Sections to Window & Door Typologies
Modern fenestration projects typically combine four complementary extrusion families on a single mixed export pallet:
- 10×20 mm Slim Series (Dies 1023, 1071, 3649): Built with a 10 mm (0.39") stack depth to clear tight exterior monoblock roller shutters and wrought-iron grilles using drill-free stainless Z-clips.
- 17×25 mm Casement Standard (Dies 1022, 1070, 3044, 3648): Europe's benchmark hinged window profile, available in 1.00 mm (230 g/m), 0.85 mm (200 g/m), and 0.70 mm (165 g/m) gauges to match luxury or tender price points.
- 17×43 mm & 20×40 mm Door Series (Dies 1113, 1120, 1031): Heavy-duty door leaves and brush-sealed perimeter sub-frames capable of tensioning 260 g/m² Pet Screen or AISI 304 stainless steel mesh.
- 22mm Slim & 27mm Standard Pleated (Dies 2250/2249, 3592/3595, 3060/3059): Zero-swing accordion patio systems with barrier-free low thresholds spanning up to 4.0 m wide in double-sash layouts.
3. Wall Thickness, Spline Tension & Frame Deflection
Rolling a 4.5 mm serrated EPDM spline into a groove exerts 18–35 kg/m of inward tension along each stile. Ultra-thin profiles (<0.75 mm) work cleanly on standard fiberglass windows up to 800 × 1,300 mm, whereas doors, windy high-rise facades, and heavy pet/solar meshes require 1.00 mm to 1.30 mm structural walls with internal reinforcing webs.
4. Master Engineering Selection & Max-Span Matrix
| Die Code | Section (mm / in) | Wall (mm) | Weight (g/m) | Max Recommended Span | Primary Application |
|---|---|---|---|---|---|
1023 / 1071 |
10×20 mm (0.39"×0.79") |
0.85–1.00 mm |
152–176 g/m |
850 × 1,400 mm |
Shutter-Clearance Clip-On Windows |
1022 |
17×25 mm (0.67"×0.98") |
1.00 mm |
230 g/m |
950 × 1,650 mm |
Architectural Hinged Casement Windows |
1113 |
17×43 mm (0.67"×1.69") |
1.20 mm |
371 g/m |
1,100 × 2,350 mm |
Hinged Balcony & Pet-Mesh Doors |
2250 + 2249 |
16.7–22 mm Slim Plissé |
1.20 mm |
298–341 g/m |
1,400 × 2,400 mm |
Recessed Roller-Shutter Patio Doors |
3060 + 3059 |
27×38 mm Plissé Set |
1.15 mm |
314–359 g/m |
4,000 × 2,800 mm (Dbl) |
Bi-Fold & Wide Sliding Patio Doors |
1029 + 1030 |
45 mm Box / 17×50 Sash |
1.30 mm |
501–542 g/m |
1,600 × 2,600 mm / Leaf |
Heavy Roller-Bearing Sliding Doors |
5. Optimizing Wholesale Pallet & Container Yield
Because our Volume Tier Pricing scales on cumulative shipment volume (-4% at 300 kg, -7.5% at 600 kg, and -10% at 1,500+ kg), smart buyers combine fast-moving 17×25 mm window bars with high-margin 27 mm pleated sets and master cartons of hardware & mesh. Use our Interactive Export Calculator to compute exact bundle counts, net weight, and container fill percentage in seconds.