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Material & Specification Overview
The table below outlines the general structure and specification range for our hollow core profile family. Chamber layout, wall thickness, and overall dimensions vary by specific mold, so please confirm against the datasheet for the exact profile you are evaluating.
| Item | Detail |
| Cross-Section Structure | Multi-chamber hollow design (typically 2-5 internal cavities depending on profile width) |
| Base Material Options | Standard PE wood composite, bamboo fiber composite, or rice husk composite |
| Formaldehyde Content | No added formaldehyde |
| Environmental Certification | REACH-compliant formulation; FSC-sourced fiber available on request |
| Standard Thickness Range | 20mm - 25mm |
| Standard Width Range | 140mm - 150mm |
| Standard Length | 2200mm / 2900mm / 3600mm |
| Weight (approx.) | 4.5 - 6.5 kg per linear meter, noticeably lighter than an equivalent solid profile |
| Surface Finish Options | Grooved anti-slip, wood-grain embossed, brushed, or co-extruded capped surface |
Product Photography
We provide real factory photography for every hollow profile: full board shots, a cross-section cut clearly showing the internal chamber layout (useful when buyers want to see wall thickness directly rather than relying on a drawing), surface texture close-ups, installed application photos, and export packaging photos so you can plan container loading and estimate realistic piece counts in advance.
A note on tolerance: chamber wall thickness is monitored closely during extrusion since it directly affects strength, and our datasheets list minimum wall thickness alongside nominal dimensions so your team can verify structural adequacy for your specific application before ordering. A physical cut sample is available on request, and we can highlight the load-bearing walls on a cross-section diagram if your engineer wants to see the structural logic behind the chamber layout.
Minimum Order Quantity & Pricing Structure
Because hollow profiles are lighter and use less raw material than solid profiles, this is generally our most cost-efficient product line per square meter of coverage, and container loading efficiency tends to be better since weight limits are reached later than volume limits. MOQ for a first trial order is typically 1 x 20ft container, and we can usually fit a higher total board count per container compared with an equivalent solid-profile order.
| Order Volume | Pricing Tier |
| Sample pieces | Sample fee + courier, often credited toward first bulk order |
| 1 x 20ft container | Standard FOB pricing |
| 1 x 40ft HQ container | Discounted per-sqm pricing, typically our most competitive landed cost per square meter |
| Multiple containers / annual contract | Negotiated volume pricing with priority production scheduling |
Quotations are typically given as FOB Ningbo or Shanghai, with CIF and DDP available once destination and Incoterm are confirmed. Standard payment terms are 30% deposit by T/T with balance against the B/L copy; L/C at sight can be discussed for larger, first-time orders. For large residential or landscaping projects where budget efficiency matters most, we generally recommend starting the cost conversation with this line before comparing it against solid core pricing.
We can also prepare a side-by-side quotation comparing hollow and solid core pricing for the same project quantity, so your team can weigh the landed cost difference against your project's structural requirements before finalizing the specification. This is particularly useful when only part of a project needs the added strength of a solid profile.
OEM & Customization Options
Hollow core profiles are our highest-volume, most cost-sensitive line, so customization here is generally fast to arrange since most tooling, colors, and chamber layouts already exist in our mold library.
- Color & surface texture - full standard color card, or custom color matching against a Pantone/RAL reference for qualifying volumes
- Chamber layout & profile width - new hollow profile molds with adjusted chamber count or wall thickness can be developed for large-volume custom orders
- Surface capping - a co-extrusion cap layer can be added to a hollow core for buyers who want low-maintenance surface protection without the added weight and cost of a solid core
- Branding - private label packaging, printed cartons, and embossed board-end logos are available
- Hardware bundling - clips, screws, and starter/edge trim components can be packaged together as a complete decking kit for distributor resale
- Cut-to-length service - boards can be pre-cut to project-specific lengths to reduce job-site waste on large landscaping projects
For a genuinely new chamber layout or profile width, we typically request a technical drawing and the intended application, and we will confirm mold cost, amortization terms, and sample lead time before production begins.
Distributors managing multiple regional sub-brands can also request the same chamber layout and color under different packaging designs within a single production run, provided quantities per design meet a reasonable minimum threshold. Sample kits combining several color and finish options are available for showroom or client presentation use, and we can also match a hollow-core surface finish to a solid-core order from the same project so both profile types look consistent once installed.
Certification & Quality Control
Because hollow core profiles are used across a very wide range of residential and light commercial projects, buyers on this line typically want reassurance that the lighter, less-material structure still holds up to normal outdoor stress and everyday foot traffic.
| Certification / Test | Availability |
| REACH / RoHS compliance | Standard formulation compliant |
| FSC Chain of Custody (fiber source) | Available on request |
| Third-party lab reports | Flexural strength, screw-holding strength, water absorption, and slip resistance test reports available (SGS/BV/Intertek) |
| Factory quality system | ISO 9001 factory management system |
Our QC process for hollow profiles includes the standard incoming raw material inspection, in-process dimensional and wall-thickness monitoring during extrusion (since consistent chamber wall thickness is what keeps the profile strong despite being lighter), and pre-shipment sampling for straightness and surface defects across each batch. We are glad to arrange a third-party pre-shipment inspection, including a cross-section check confirming chamber wall thickness meets spec, if that level of verification is part of your standard sourcing process.
For buyers who want independent verification, we can share historical flexural and screw-holding test data from previous production batches for the specific chamber layout you are considering, and can coordinate a fresh third-party test if your project timeline allows. Batch traceability records connect every shipment to its production date and raw material batch, supporting after-the-fact quality documentation if your project or client requests it. We are also glad to discuss which wall-thickness option best fits your climate and expected foot-traffic level before you finalize your order.
Production Capacity & Lead Time
Hollow core profiles generally run faster through the extrusion and cooling process than solid profiles of the same width, since there is less material mass to cool and calibrate, which typically translates into shorter lead times and higher monthly throughput on this line.
| Item | Detail |
| Monthly capacity | Higher throughput per line than solid profiles due to shorter cooling cycles; typically several hundred tons per month across parallel lines |
| Sample lead time | 3-6 working days for existing profiles |
| Standard order lead time | 15-22 days after deposit and specification confirmation |
| Custom mold lead time | Additional 20-30 days for a new chamber layout or profile width |
| Peak season note | As a high-volume line, this profile type books up quickly ahead of Q1 (Chinese New Year) - we recommend confirming orders early if your landscaping or building project has a fixed installation window |
We provide production progress updates and can arrange factory video calls during production for buyers who want visual confirmation of chamber layout and surface finish before the goods are loaded and shipped.
If your project is phased across multiple installation stages, a confirmed order can be split into several shipment dates rather than shipping all at once, and we will provide a written shipment calendar once the production slot is booked so your site team can align crew scheduling with delivery dates. Expedited production is available for time-critical orders, generally with a modest surcharge or adjusted queue priority. As with our other lines, we recommend confirming your target delivery date as early as possible so we can give you an honest feasibility assessment rather than an optimistic one.
Logistics & After-Sales Support
Because hollow profiles are lighter per linear meter, this is generally our most freight-efficient product line - more boards can typically fit within a standard container's weight allowance, which helps lower landed cost per square meter for larger orders.
- Shipping ports - orders typically go out via Ningbo or Shanghai port; FOB, CIF, or DDP quoting available
- Container loading efficiency - because hollow profiles are lighter, container loading is usually limited by volume rather than weight, and we will confirm realistic piece counts per container so your landed-cost calculation reflects the actual maximum practical order size
- Transit packaging - pallet-stacked, shrink-wrapped, with corner protectors to prevent edge crushing of the hollow chambers during loading and long-distance sea freight
- Documentation - commercial invoice, packing list, bill of lading, and certificate of origin provided as standard; fumigation and third-party inspection certificates available on request
- Damage/shortage claims - please document any container or pallet damage with photos at unloading, paying particular attention to crushed board ends, which is the most common transit issue with hollow profiles; verified manufacturing defects are resolved through replacement stock or credit on the next order
- Installation guidance - installation manuals and fixing-system recommendations suited to hollow-profile handling (including end-cap use to prevent moisture and insect entry into the open chambers) are provided for your installation team
Our export team remains reachable by phone or WhatsApp through the full shipping window to help plan realistic order quantities for large landscaping or distribution projects.
An account coordinator remains your point of contact from order confirmation through delivery confirmation for every hollow-core order.
Frequently Asked Questions
Q: Is hollow core weaker than solid core?
A: For standard residential decking, walkways, and most light-to-medium commercial use, hollow core performs very similarly to solid core in day-to-day conditions; solid core becomes the better choice mainly for heavy point loads or specific commercial load-rating requirements.
Q: Do the hollow chambers let water or insects get inside the board?
A: The board ends should be finished with plastic or aluminum end caps during installation to seal the chambers - this is standard practice for hollow composite decking worldwide, and we include end-cap recommendations in our installation guidance.
Q: Why would I choose hollow over solid core?
A: Cost and shipping weight are the main reasons - hollow profiles use less raw material and weigh less per linear meter, which typically lowers both the unit price and the landed freight cost per square meter compared with an equivalent solid profile.
Q: Can hollow core be capped with the co-extrusion surface layer?
A: Yes, hollow cores can be paired with our co-extrusion capped surface for buyers who want low-maintenance surface protection while keeping the lighter weight and lower cost of a hollow structure.
Q: Which is better for a large residential landscaping project on a budget?
A: Hollow core is generally the recommended starting point for large residential and landscaping projects where budget efficiency matters most, with solid core reserved for specific high-traffic or heavy-load areas if needed.
Q: Do hollow profiles need special tools for cutting or drilling compared to solid boards?
A: No special tools are required - standard saw blades and drill bits used for composite decking work fine, though we recommend supporting the board close to the cut line to avoid crushing the open chambers during cutting.
