160*20mm Hollow Outdoor WPC Fence Panels Termite Proof

Product Specification

160mm*20mm Engineered Hollow Outdoor WPC Fence Panels | Direct Factory Supply

Product Summary

this specification details a high-stiffness, first-generation multi-chambered lap-siding fencing system engineered exclusively for large-scale commercial developments, municipal perimeters, and dense residential housing estates. Extruded as a single-layer, interior-ribbed homogeneous matrix rich in premium hardwood fibers (≥ 55%) and structural polymers, this profile utilizes internal engineering webs to deliver exceptional flexural strength while drastically reducing deadweight to maximize shipping container payload utilization. Utilizing an architectural staggered lap-siding interlocking track, the system creates a 100% completely sealed, zero-gap perimeter wall that guarantees maximum site security and absolute visual privacy without heavy material mass.

About this Product

• Ribbed Hollow Architecture 

  • Engineered with an interior multi-chambered web matrix, the fence profile minimizes structural deadweight on framing pillars while maximizing lateral stiffness to prevent sagging or twisting.

• 100% Monolithic Privacy Boundary 

  • The precise cascading interlocking lip ensures a zero-gap, tight-fit installation that blocks 100% of external visibility, making it the premier choice for luxury hospitality borders and secure utility sites.

• Optimized Deadweight Freight Saving

  • The hollow-core profile reduces structural material weight per square meter, allowing bulk buyers to pack more volume into a single 20GP/40HQ container without exceeding international port weight limits.

• Contractor-Friendly Fast-Fix Tracks 

  • The tongue-and-groove lap lip allows panels to slide-lock sequentially into post channels without surface screws, cutting localized contractor assembly time by up to 50% compared to traditional stick-built wood fencing.

Technical Specification

Certification

How to Install

Method 1: In-Ground / Dig-In Installation

[Applicable Scenario] Soft ground surfaces such as gardens, lawns, soil, or sandy ground. This is the most stable method for outdoor fencing.

1. Measurement, Layout, and Alignment: Stretch a string line according to the standard span of the fence (typically 1.8 m) to mark the exact center point of each post. Precision in spacing is critical; otherwise, the fence boards will not fit into the post slots.

2. Digging Post Holes: Dig foundation holes at the marked locations. Standard requirement: Hole diameter is generally 300mm, with a depth of 500 mm - 600 mm (in cold regions, the depth must extend below the frost line).

3. Setting Posts and Pouring Concrete: Insert the WPC posts (or composite posts with internal steel/aluminum reinforcements) into the holes. Pour in mixed concrete (Grade C20 or above). Key Step: Use a spirit level to repeatedly check and adjust the post in two vertical directions to ensure it is 100% plumb.

4. Curing and Waiting: Temporarily secure the leveled posts with bracing timber and allow the concrete to cure. Typically, a waiting period of 24 to 48 hours is required to ensure the concrete has fully hardened before proceeding with board assembly.

Method 2: Bolt-Down with Base Plate

[Applicable Scenario] Pre-hardened ground surfaces such as concrete slabs, concrete foundations, or brick/stone patios.

1. Positioning and Marking: Align the string line on the hardened ground. Determine the exact position of the post base plates based on the net length of the fence board (e.g., 1750 mm plus the post slot depth). Mark the drill holes through the base plate using a marker.

2. Drilling: Use an impact drill equipped with a drill bit that matches the expansion anchors (usually 12 mm or 14 mm in diameter). Drill vertically into the concrete to a depth of 80 mm - 100 mm. Clean out all dust and debris from the holes.

3. Installing and Securing the Metal Base: Align the galvanized steel or aluminum post support base over the drilled holes. Insert the metal expansion anchor bolts or chemical anchors, and tighten them securely using a socket wrench to anchor the base firmly to the concrete.

4. Sleeving the WPC Post: Slide the outer hollow WPC post sleeve from top to bottom over the fixed metal base plate, then lock the inner and outer layers together at the bottom using self-tapping screws.

Application Gallery

Colors

Our Factory

FAQ

Q1: Will this hollow-core first-generation WPC fence warp or crack when internal air chambers heat up under intense outdoor sun?

A1: No. The multi-chambered internal framework is specifically engineered to act as a thermal expansion buffer. Because the air cavities allow heat to dissipate uniformly throughout the profile rather than trapping it on the outer skin, the internal structural expansion stress is fully neutralized, keeping the fence perfectly straight through severe summer climate shifts.

Q2: Does your factory provide a unified color tolerance control system for large commercial project orders that span multiple container shipments?

A2: Yes. For large-scale multi-container commercial contracts, our factory implements a strict raw-material pre-blending protocol and spectrophotometer monitoring (Δ E ≤ 3.0). Because natural wood fibers vary slightly by season, we run large orders on designated consecutive extrusion lines to guarantee a premium, highly consistent multi-tonal aesthetic across the entire commercial contract perimeter.

Q3: What are the exact structural wind-load load ratings and engineering post specifications required for this hollow lap fence?

A3: Because a 100% solid, non-vented wall experiences high wind loads, we do not recommend using pure plastic or light wood posts. Our engineering system provides matching structural aluminum posts (6063-T5) or hot-dip galvanized steel internal sleeves (2.0mm-3.0mm thickness). When anchored into engineering concrete wet-footings, the entire structural assembly easily clears localized wind-load certifications up to 120km/h.

Q4: Can we request customized lengths and specific surface grain textures for private label (OEM) or municipal bidding tenders?

A4: Absolutely. As a direct B2B manufacturer, we support fully customized lengths (up to 5.8m to fit standard 20GP/40HQ container limits perfectly) to eliminate jobsite trimming scrap. For public bidding or corporate private labels, we can provide customizable surface treatments including heavy wire-brushing, sanding, or deep rustic embossing, alongside full custom branding on the protective packaging pallets.