For load-bearing structural members (columns, primary ring beams, and heavy-span louvers), 6063-T6 is the standard industry recommendation. The T6 temper treatment (solution heat treated and artificially aged) increases tensile yield strength from approximately 145 MPa (T5) to ≥ 200–245 MPa. This ensures structural rigidity under high wind pressure and prevents mid-span deflection over wide openings. Non-structural decorative louvers or side infills can utilize 6063-T5.

Pak Alumex motorized louver blades are extruded with engineered double-lip channels. When closed flat (0° position), each louver overlaps the adjacent blade, forming a continuous rain seal. Water drains into perimeter extrusion ring beams designed with integrated gutter channels. The perimeter gutter directs water into the hollow core of the vertical support columns, which discharge rainwater at ground level through hidden base-plate spouts, keeping all drainage piping 100% invisible from the exterior.

When properly anchored to concrete footings using 316 stainless steel expansion bolts or embedded structural steel plates, Pak Alumex 6063-T6 pergolas are calculated to resist wind velocities up to 120 km/h to 160 km/h (Beaufort Scale 11 to 12). For extreme weather regions, automated wind sensors open the motorized louvers to a vertical position (90°), allowing high-velocity winds to pass through freely and eliminating uplift forces on the frame.

Powder Coating: Electrostatically applied polyester powder cured to a 60–80 µm dry film layer. Offers unlimited RAL color flexibility, matte/textured options, and strong UV protection.
Anodizing: An electrochemical conversion process that grows a protective aluminium oxide layer (20–25 µm for exterior marine grade) directly out of the metal. Cannot peel or flake, offering maximum scratch resistance and metallic luster.
Wood-Grain Sublimation: A specialized dual-stage process where a base powder coat is applied, followed by vacuum transfer of wood pattern pigments into the coating depth. Delivers the visual warmth of natural timber without rotting, warping, or requiring maintenance.

Yes. Pak Alumex operates an in-house toolroom for custom die manufacturing. Clients submit CAD drawings (DWG/DXF/STEP) or physical profile samples. Our engineering team reviews wall thickness symmetry, extrusion ratios, and press capacity before machining the die. We produce first-article profile samples for dimensional and surface release approval before launching volume production runs.

Every extruded length is wrapped in non-adhesive protective PE film. Profiles are bundled with protective foam interleaving to prevent metal-to-metal rubbing. Bundles are enclosed in heavy-duty cardboard wrap, strapped, and loaded into custom heat-treated wooden crates or reinforced bundle pallets. Consignment packing is optimized for 20ft and 40ft containers with moisture-absorbent desiccant packs to prevent condensation staining during marine transport.

You can contact our sales engineering department directly by clicking the Get a Quote button on this page. Provide your structural dimensions, profile wall thickness preferences, finish selection, and estimated order quantity. Our engineering team will return profile weight-per-meter schedules, structural assessments, and FOB/CIF pricing estimates.