Hollow Composite Decking

Q: What is hollow composite decking?

Hollow composite decking is a lightweight, durable alternative to solid wood or traditional composite boards. Its hollow-channel design reduces weight while maintaining strength, making it ideal for DIY projects and elevated installations.

Q: How does hollow composite decking differ from solid composite decking?

Hollow decking uses internal air gaps to lower weight and material costs, while solid composite decking is denser and heavier. Hollow boards are 30-40% lighter but still meet ASTM load-bearing standards for residential use.

Q: Is hollow composite decking prone to warping?

No. The hollow structure allows for better thermal expansion/contraction management, reducing warping risk even in extreme temperatures (-30°C to 60°C). Proper 3-5mm gap spacing during installation is critical.

Q: Can it support heavy furniture or hot tubs?

Hollow composite decking has a live load capacity of 300-400 lbs/sq.ft, suitable for patio furniture and grills. However, consult an engineer for hot tubs or heavy structures, as additional substructure support may be needed.

Q: Does it fade or stain easily?

Use a soft brush and mild detergent. Avoid pressure washers above 1,500 PSI, as high-pressure water can force debris into hollow channels. Rinse thoroughly to prevent mold in humid climates.

Q: Can I install hollow composite decking myself?

Absolutely. The lightweight design (2.2-2.8 kg/m²) simplifies handling. Use corrosion-resistant stainless steel clips/screws, and follow the brand’s gap spacing guidelines for drainage/ventilation.

Q: What warranty is offered?

Reputable brands provide 15-25 year warranties covering fading, staining, and structural defects. Warranties often require professional installation and annual cleaning.

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Hollow composite decking is a lightweight, eco-friendly alternative to traditional wood or solid composite boards, available in three main types: traditional hollow decking (budget-friendly with recycled wood/plastic blends), co-extruded hollow decking (UV-resistant surface for high-traffic or coastal areas), and specialty options (anti-slip, fire-rated, or capped designs for pools/commercial use). Ideal for DIY projects, elevated decks, and humid climates, it combines durability (300–400 lbs/sq.ft load capacity), low maintenance (no sealing required), and sustainability (50–80% recycled materials), with costs ranging from $3.50–$8.50/sq.ft depending on type and certifications (FSC/GREENGUARD).

Hollow Composite Decking Vs Solid Composite Decking

Feature	Hollow Composite Decking	Solid Composite Decking
Core Structure	Hollow channels (40-60% air pockets)	Fully dense composite material
Weight	1.8-2.5 kg/m²	3.2-4.1 kg/m²
Load Capacity	250-300 kg/m² (residential use)	450-600 kg/m² (commercial/heavy-duty)
Thermal Expansion	1.2-1.8% (prone to warping in extreme temps)	0.5-0.9% (stable in -30°C to 60°C)
Noise Dampening	Echo effect underfoot (65-70 dB impact noise)	Superior sound absorption (55-60 dB)
Moisture Resistance	Risk of water pooling in cavities	No internal voids (prevents mold growth)
Installation Complexity	Requires precise joist spacing (300-350mm)	Tolerates wider joist spacing (400-450mm)
Cost (Material Only)	$2.8 -$ 4.0/sq.ft	$5.5 -$ 7.2/sq.ft
Lifespan	15-20 years (with maintenance)	25-30+ years (low maintenance)
Fire Rating	Class C (ASTM E84)	Class B (ASTM E84)
Eco-Footprint	30% less raw material used	Higher material use but recyclable core
Best Applications	Residential balconies, walkways	Pool decks, rooftop terraces, boardwalks

Practical Applications of Hollow Composite Decking

Our hollow composite decking product is the perfect solution for any location in need of flooring.

Hollow Composite Decking for Balcony

Hollow Composite Decking for Corridor

Hollow Composite Decking for Garden

Decking for Home Swimming Pool

Hollow Decking for Winnebago

Hollow Composite Decking for Outdoor

Why Choose Us

Are looking for high-quality and cost-effective WPC decking? our products maybe the best choice for hollow composite decking

Mature and great supply chain system

With China's biggest composite production base and full supply chain support, we deliver fast customization of materials while maintaining cost efficiency. Our complete industrial setup allows flexible WPC manufacturing tailored to your project needs.

More Tech accumulation and R&D

With more than 12 years of material engineering expertise, we dedicate not less than 6% of annual revenue to R&D. Our in-house lab develops 5-8 new composite formulas yearly, adapting technologies to meet evolving industry specifications.

Efficient customer service team

Our CS team operates on 2-hour response SLA with ERP-tracked workflows. From project scoping on Monday to Friday FOB shipments, we maintain 97% on-time delivery via Milestone Mapping system, backed by 48-month extended support including root-cause analysis reports.

Strict and Traceable quality control

Our production lines conduct 27 inspections per batch using XRF analyzers and thickness gauges. Certified to ISO 9001:2015 standards, we've maintained <0.3% defect rates since 2020 by implementing automotive-grade quality protocols.

Free and diverse samples to choose

If you don't know how to choose a product, we can send you free samples by mail. Shoot us your project specs – we'll fire back a custom sample kit with 30+ textures/colors, zero cost. So, No need to hesitate to contact us

Instant and professional quotation

Just tell us your demand or idea, we will recommend the best solution include WPC type, specs, and order size for you - our team cracks out a rock-bottom price and tightest delivery schedule in 30 mins flat. No more spreadsheet ping-pong for days.

Tell Us Your Special Requirements For Hollow Composite Decking

If our standard size or color do not perfectly match your needs, we also offer custom service.

Send Custom Requirement

Resources on China Hollow Composite Decking

Best China Hollow Composite Decking Manufacturer
The Ultimate Guide to Composite Decking Technology
Choosing the Right Joists for Hollow Composite Decking

Co-extrusion Decking Vs Solid Wood Decking.
Why composite decking is more environmentally friendly？
How to Install WPC Decking Correctly and Efficiently?

What Our Client Says

Our testimonials reveal how we have assisted our clients in accomplishing their ideas and the satisfaction they have derived from working with us.

Kenneth Li

Installed hollow composite decking on my lakeside cabin balcony last month – what a breeze! The planks were 40% lighter than solid alternatives, so my teenage son and I could handle them without professional help. The hidden clip system saved us 2 days of labor. Even after heavy rains, no warping or slippery surfaces. Perfect for DIYers on a budget!

Kellie S. Germany

As a property manager, I chose hollow composite decking for our 1,200 sq.ft apartment courtyard. The air-pocket design cut material costs by 35% compared to solid boards, yet it still handles foot traffic from 50+ daily residents. Three years in, zero splinters or fading – maintenance crews love hosing it down in minutes!

Donald M. Fiore

Game-changer for our Arizona backyard! The hollow channels keep the deck surface 15°F cooler than solid composites during summer. Our dog finally stopped burning his paws, and the kids play outside all day. Bonus: the hollow structure reduced echo when we added outdoor speakers!

Matthew Anderson

Switched from tropical hardwood to hollow composite decking for our eco-lodge walkways. The reduced material usage (30% less plastic/wood fibers) aligned with our sustainability goals, and guests rave about the realistic woodgrain texture. Passed monsoon season without mold – even in 90% humidity!

FAQ

Common Questions Aabout Durable WPC Decking

What is hollow composite decking?

Hollow composite decking is a lightweight, durable alternative to solid wood or traditional composite boards. Its hollow-channel design reduces weight while maintaining strength, making it ideal for DIY projects and elevated installations.

How does hollow composite decking differ from solid composite decking?

Hollow decking uses internal air gaps to lower weight and material costs, while solid composite decking is denser and heavier. Hollow boards are 30-40% lighter but still meet ASTM load-bearing standards for residential use.

Is hollow composite decking prone to warping?

No. The hollow structure allows for better thermal expansion/contraction management, reducing warping risk even in extreme temperatures (-30°C to 60°C). Proper 3-5mm gap spacing during installation is critical.

Can it support heavy furniture or hot tubs?

Hollow composite decking has a live load capacity of 300-400 lbs/sq.ft, suitable for patio furniture and grills. However, consult an engineer for hot tubs or heavy structures, as additional substructure support may be needed.

Does it fade or stain easily?

Use a soft brush and mild detergent. Avoid pressure washers above 1,500 PSI, as high-pressure water can force debris into hollow channels. Rinse thoroughly to prevent mold in humid climates.

Can I install hollow composite decking myself?

Absolutely. The lightweight design (2.2-2.8 kg/m²) simplifies handling. Use corrosion-resistant stainless steel clips/screws, and follow the brand’s gap spacing guidelines for drainage/ventilation.

What warranty is offered?

Reputable brands provide 15-25 year warranties covering fading, staining, and structural defects. Warranties often require professional installation and annual cleaning.