ASA Co-extruded 50*25 Outdoor Rectangular Tubing
Slim-Profile Structural Tubing | Zero-Maintenance Alternative to Timber & Aluminum | For Pergola Rafters, Sunshade Louvers & Facade Grids
Direct Answer: Necowood’s ASA co-extruded WPC rectangular tubing is a slim, high-strength hollow profile engineered for architectural shading. Unlike bulky square posts, its flattened geometry delivers targeted bending stiffness for pergola cross-beams and facade louvers. The co-extruded ASA shell ensures zero-maintenance weather resistance and UV stability, replacing timber and aluminum in high-end commercial builds.
Product Overview
Summary: This hollow rectangular tubing is engineered for projects demanding lightweight structural beams with a refined, linear aesthetic. The rigid WPC core resists sagging, while the ASA shell prevents moisture ingress and UV fading. It is the definitive specification choice for modern pergola roofs and architectural sunshades.
When designing outdoor pergolas, trellises, or architectural sunshades, the visual bulk of solid timber or square metal posts often feels heavy and obtrusive. Necowood’s rectangular tubing solves this with a slim, flattened profile that creates elegant shadow lines and a modern, minimalist aesthetic.
Manufactured with a rigid Wood Plastic Composite (WPC) core, the tubing provides excellent directional load-bearing capacity—acting as a stiff beam while occupying minimal vertical space. The surface is permanently fused with an ASA layer, offering exceptional resistance to harsh UV rays, salt spray, and moisture. Whether you are constructing a commercial pergola roof, horizontal slat screens, or custom outdoor furniture frames, this tubing delivers the authentic warmth of wood with the structural integrity of modern composites.
Key Features
Flattened geometry delivers superior stiffness for overhead rafters and louvers.
Hollow core accommodates concealed aluminum U-channels for a screw-free look.
Co-extruded outer layer prevents fading, rot, and moisture absorption.
Product Description
Summary: The ASA WPC rectangular tube is a specification-grade alternative to timber and aluminum for exterior linear framing. It can be cut, drilled, and integrated into standard substructures. Unlike timber, it will not warp or splinter; unlike aluminum, it does not conduct heat or suffer from coastal corrosion.
From a contractor's perspective, the rectangular tubing is highly versatile. It integrates seamlessly into timber framing or aluminum substructures using concealed brackets, U-channels, or standard mechanical fasteners. The hollow core not only reduces weight for easy one-person handling but also allows for the concealment of low-voltage wiring for integrated LED strip lighting.
Compared to standard square tubes, the rectangular geometry provides distinct structural benefits. When oriented correctly, the wider face offers greater resistance to vertical loads, making it the preferred choice for overhead pergola slats and horizontal sunshade fins. With no need for sanding, sealing, or painting, the tubing maintains its premium architectural finish year-round.
Color & Texture
Summary: Features a realistic, embossed wood-grain finish that mimics natural timber slats. Available in standard outdoor-ready hues. Physical samples are highly recommended for color matching on large architectural projects.
The co-extruded ASA surface creates a tactile, dimensional grain that looks premium from a distance and up close. Please refer to the color chart above for standard wood-tone options.
Customization: Custom color matching and texture adjustments are available for bulk OEM orders.
Ideal Applications
Summary: Engineered for commercial and hospitality transitions, this rectangular tubing excels as a structural component for semi-outdoor spaces. It is commonly specified for entrance canopies, sunshade louvers, transit shelters, and facade screens where high strength and a slim visual profile are required.
Commercial Office Canopies
Provides high-strength structural framing for semi-outdoor walkways. The slim profile integrates cleanly with modern glass and steel architecture without blocking natural light.
Hotel Lobby Porticos
Constructs elegant drop-off canopies and outdoor lounge structures. The UV-stable ASA surface withstands harsh sunlight without the cracking or annual refinishing required by real wood.
Retail Facade Louvers
Acts as effective horizontal fins or vertical sunshades. The hollow design allows for concealed fixing and precise alignment, creating a striking visual rhythm across large commercial facades.
Restaurant Patio Pergolas
Builds lightweight, overhead pergola grids for alfresco dining. Resists moisture, food stains, and heavy rain, while remaining easy to wipe clean before service.
Transit Station Shelters
Serves as durable cross-beams and rafter supports for bus stops and train platforms. Will not rot from exhaust fumes or degrade from constant exposure to the elements.
Exhibition Structural Grids
Creates rigid, geometric trellis systems for outdoor event spaces. The composite core provides the necessary stiffness for long spans while keeping the overall structure visually lightweight.
Customization & Wholesale Options
Summary: Necowood provides comprehensive OEM and ODM services for our WPC rectangular tubing. We support custom length cutting, specific color matching, and matching end caps to meet the supply chain needs of global wholesalers and contractors.
Frequently Asked Questions
Summary: Common specification inquiries regarding the structural orientation of rectangular tubing, installation methods for louvers, and thermal expansion.
How should the rectangular tubing be oriented for maximum load bearing?
For overhead rafters, the wider face should be oriented vertically (on edge). This directional orientation maximizes the bending stiffness of the hollow profile, allowing it to span greater distances without sagging.
How do you install WPC rectangular tubing for facade louvers?
It is typically secured using concealed aluminum U-channels mounted to the structural frame. This allows for precise spacing and a screw-free architectural finish.
How do you handle thermal expansion in outdoor applications?
Leave a 3-5mm gap at the ends or use slotted brackets. This allows the tubing to expand and contract naturally in the heat without buckling.
Why choose WPC rectangular tubing over aluminum louvers?
WPC does not conduct heat, preventing condensation drips. It offers a natural timber aesthetic, never corrodes in coastal air, and absorbs the sound of rain impacts better than hollow metal.
Do you supply end caps for the hollow tubing?
Yes. We supply matching ASA WPC end caps. They seal the hollow core against moisture and prevent insects from nesting inside the exposed ends.
