Swimming Pool WPC Deck: Complete Manufacturer Guide

As a professional WPC composite decking manufacturer, we found that 90% of swimming pool projects face common issues.These include water penetration, slime buildup, warping, cracking, and fading problems.

This guide will help you avoid common pitfalls. You can choose the right swimming pool WPC decking material for your needs.

Last Updated: July 2025 | Estimated Reading Time: 8 minutes

Swimming Pool WPC Deck Selection
Swimming pool wpc deck selection guide

This article will answer for you:

  • Why is WPC deck the best choice for swimming pool areas?
  • Which WPC outdoor decking type suits your pool project best?
  • How can you identify truly high-quality swimming pool WPC decking material?
  • How do you choose a reliable pool deck WPC manufacturer?

Why Choose WPC Deck for Swimming Pool Decking?

You can observe pool projects around you. You will notice problems with traditional materials. Real wood cracks and warps easily.
Stone surfaces become slippery and cost too much. But does WPC outdoor solve these problems? Of course!

WPC composite decking has become the top choice for 75% of high-end pool projects worldwide. This is no coincidence.

the aged wooden floor of the swimming pool
The aged wooden floor of the swimming pool
Beautiful and Eco-Friendly

WPC decking perfectly replicates natural wood grain textures. Your pool area will look just like real wood flooring. Our 3D embossing technology creates WPC deck flooring. The touch and visual effect feel almost identical to wood grain.

Additionally, WPC composite made by Ecoxplank passes FSC certification. The wood powder content reaches 60-70% in raw materials. All materials come from recycled wood and agricultural waste. This achieves true environmental sustainability.

Durability Performance

Professional-grade WPC decking outdoor can last 25-30 years. But this data only applies with strict joist spacing control (≤305mm) and correct installation. Even non-professional grade can last around 10 years. You might find many manufacturers claim 50-year lifespans. I tell you, that’s almost impossible.

From a manufacturing technology perspective, we now produce WPC planks with bending strength over 35MPa. This far exceeds the 20MPa standard for ordinary outdoor materials. This means even if you and your friends – 10-15 people – stand on one board for a pool party, the WPC deck flooring won’t deform.

Excellent Waterproof Performance

This is what you need to consider most. WPC outdoor decking contacts water for long periods. 

Let’s look at test data: High-quality solid WPC controls 24-hour water absorption below 0.2%. In comparison, ordinary wood has water absorption rates of 15-20%.

You might not understand what this means. This is like coating the deck with a protective film. It can soak continuously for over 20 days in environments 1000 times more chlorinated than pool water. The color and strength won’t change at all.

Outstanding UV Resistance

Our project in Dubai proved this point. After 5 years of use, it still maintains its glossiness. You might think UV resistance isn’t important, like one of my customers did. But his previous supplier installed cheap WPC flooring around the pool. Under Dubai’s constant temperatures above 50°C, the floor started leaking slime and fading after 3 months.

So you must choose WPC decking floor with dual-layer coating technology. Its outer UV-resistant layer reaches 1.5mm thickness. This ensures no fading under intense sunlight.

Safety and Environmental Performance

You don’t need to worry about slipping. WPC floor decking surface has an anti-slip friction coefficient above 0.6. It provides sufficient grip even in wet conditions. The surface has no splinter design. It won’t scratch bare feet. This makes it especially suitable for families with children.

Moreover, Ecoxplank’s outdoor WPC passes CE certification and ASTM safety standard tests. This ensures the material releases no harmful substances. It remains eco-friendly even under high-temperature sun exposure.

Long-term Cost Advantage

If you want to use it for over 15 years without maintenance, WPC outdoor decking will satisfy you. You install it and never need to spend money again. But real wood decking needs annual maintenance. You will fall into cleaning anxiety every year. The longer the time, the more splinters, fading, and mold appear.

We installed our seawater-resistant WPC deck exterior at a resort in Kuala Lumpur, Malaysia in 2019. After 5 years of tropical marine climate testing, the color and structure remain like new.

WPC deck of the resort in Malaysia
WPC deck of the resort in Malaysia

What Are the Best WPC Outdoor Decking Types for Swimming Pools?

Based on our experience with 40+ pool projects worldwide, the following four types work best for swimming pool applications.

Solid WPC Decking

Solid WPC decking is the most pressure-resistant choice for pools. This works especially well when pools have high foot traffic. This material has better load-bearing capacity and anti-deformation performance. Bending strength can reach above 40MPa. This is 1.5 times that of hollow WPC decking. It suits commercial pools or high-frequency home pools perfectly.

This type of WPC solid board has higher density. It feels more solid when stepped on. It won’t create a hollow feeling. In pool edge areas that need to withstand diving impacts, solid WPC performs exceptionally well.

If you have commercial pools, resorts, or high-end private pools, it offers strong load-bearing capacity, solid feel, and long service life. But the cost is relatively high. The weight is heavier and requires reinforced joist support.

solid wpc decking on the swimming pool
Solid wpc decking on the swimming pool

3D Embossed WPC Decking

3D embossed WPC composite decking has rich surface texture layers. The touch feels over 95% close to natural wood. This process not only enhances appearance but also strengthens anti-slip performance. Texture depth usually ranges between 0.5-0.8mm.

Color choices are abundant. From classic teak color to modern WPC decking grey, all can blend perfectly into different pool design styles. The surface micro-textures also help hide minor scratches. This maintains long-term beauty.

If you have landscape design projects or applications that focus on aesthetic effects, this material offers real wood feel, good anti-slip properties, and high beauty. But cleaning requires attention to texture gaps. You need to avoid dirt accumulation.

3D embossed WPC timber decking
3D embossed WPC timber decking

Hollow WPC Decking

Hollow WPC has the cheapest price. It achieves lightweight design through internal cavity structure. This reduces material costs while maintaining basic performance. WPC hollow board wall thickness design is optimized. Main load-bearing areas have wall thickness of 4-6mm. This ensures structural strength.

The hollow design also brings certain heat insulation effects. In hot regions, surface temperature is 3-5°C lower than solid products. This improves usage comfort.

If you have a very low budget and need large-area installation for home pools, you can choose this option. It has low cost, light weight, and good heat insulation. But load-bearing capacity is relatively low. You need to reduce joist spacing to below 250mm.

Hollow WPC Decking for Swimming Pools
Hollow WPC Decking for Swimming Pools

Capped Composite Decking

Capped technology is the highest standard in the WPC composite decking industry. The outer protective cap thickness reaches 1.5-2mm. It provides 360° comprehensive protection. This technology suits harsh pool environments particularly well. It effectively resists chloride corrosion and UV damage.

The outer protective cap uses special polymer materials. It’s not only waterproof and stain-resistant but also has self-cleaning functions. Even with long-term exposure to pool chemical environments, it maintains like-new appearance.

If you have commercial pools, seaside projects, or pools with high chemical concentrations, you should choose this material. It has the strongest protection capability, chemical corrosion resistance, and maintenance-free benefits. The downside is the highest cost.

Co-Extrusion WPC Decking for pool
Co-Extrusion WPC Decking for pool

 

We also created a summary table. You can choose based on your own scenario. If you’re unsure how to choose, you can also click here to contact Ecoxplank manufacturer. We will provide professional answers.

WPC TypeLoad CapacityCost LevelBest Suited Scenarios
Solid WPCHighest (40MPa+)Medium-HighHigh-density/high-frequency pools
3D Embossed WPCHigh (35MPa+)Medium-HighAesthetics-focused residential pools
Hollow WPCMedium (25MPa+)LowWith a limited budget family pools
Capped CompositeHigh (38MPa+)HighestHarsh environments/high-quality commercial projects

How to Choose the Right Swimming Pool WPC Deck Material?

As a professional manufacturer, we have seen too many project failures caused by wrong material choices. 90% of people only look at WPC decking price and appearance when choosing WPC decking material. This dooms them to problems.

If You Want to Choose Dual-Layer Coating?

WPC outdoor uses dual-layer coating technology. The outer UV-resistant layer thickness reaches 1.5mm. This is the key to ensuring no fading. Many manufacturers reduce the protective layer thickness to 0.8mm or even thinner to lower WPC decking price. This causes products to show obvious fading within 1-2 years.

The inspection method is simple: Ask manufacturers to provide product cross-section diagrams. They should clearly mark each layer thickness. If manufacturers cannot provide detailed layer structure explanations, you can basically judge it as a low-end product.

Many composite WPC decking products on the market claim 25-50 year lifespans. But this data can still be misleading. You cannot distinguish between true and false. If WPC deck flooring produced by Ecoxplank wants to exceed 20 years of actual service life, it must meet the following conditions:

  • Joist spacing strictly controlled at ≤305mm
  • Use stainless steel or hot-dip galvanized fasteners
  • Reserve expansion joints according to standards
  • Regular cleaning and maintenance

This means you must install according to different manufacturers’ requirements. If not, even the best WPC decking floor may have problems within 5-8 years.

Double-layered encapsulated structure of WPC deck
Double-layered encapsulated structure of WPC deck

Thermal Expansion and Contraction Control Standards

Professional-grade WPC floor decking must control linear expansion coefficient below 2.5×10⁻⁵/°C. This is the life-or-death line for pool applications. Exceeding this value will cause obvious expansion and contraction deformation in environments with large temperature differences. This leads to joint cracking or board warping.

So you must require suppliers to provide third-party testing reports. If they cannot provide them, we recommend choosing carefully.

Real Standards for Load-Bearing Capacity

True pool WPC bending strength must reach above 35MPa. But 80% of products on the market cannot reach this standard. Many manufacturers provide theoretical values or laboratory optimal condition data. Actual product performance may differ by 30-50%.

Inspection method: Request to see ASTM D790 bending strength test reports. Note that test conditions must be standard environment of 23°C and 50% humidity. If test results are under other conditions, reference value is limited.

Chloride Resistance Standards

Excellent WPC decking outdoor can withstand 3000ppm chlorine concentration soaking for 500 hours without changes. Many manufacturers don’t even know this test standard. This comes from our actual project experience in Indonesia.

If WPC outdoor decking cannot pass high-concentration chloride testing, it will show surface powdering, fading, or even structural damage in pool environments. This is the root cause why many cheap products have frequent problems after 1-2 years of use.

Water Absorption Standards

Seawater environment corrosivity is over 10 times that of ordinary environments. So when you choose WPC materials for seaside projects, products need to pass ASTM testing. ASTM salt spray testing simulates high-salt, high-humidity conditions of marine environments. Only products that pass testing can be used long-term in seaside pools.

If you choose unqualified products, serious corrosion problems may appear within 6 months.

Seawater Environment Standards

Excessive water absorption in WPC decking board causes material expansion and deformation. It may also cause freeze cracking in winter when freezing occurs.

Before we choose, we check the water absorption ratio in material test reports. If this indicator exceeds 0.5, we don’t recommend it for pool projects.

Professional Tip: When choosing WPC decking material, always request complete technical parameter sheets and third-party testing reports. If suppliers cannot provide these materials, or if data is vague and unclear, we recommend changing suppliers. True professional manufacturers will actively provide detailed technical documentation.

WPC deck subject to coastal erosion
WPC deck subject to coastal erosion

Best Decorative Color Choices for Outdoor WPC Pool Deck

In pool environments, choosing the wrong color may cause surface overheating or rapid fading problems.

Based on our project experience in different climate zones worldwide, the following color combinations perform best in swimming pool WPC deck applications.

Grey Tones

WPC decking grey is currently the mainstream choice for global pool projects. It accounts for over 60%. Grey matches perfectly with modern architectural styles.

Additionally, neutral grey has a solar light reflectance of 30-40%. This means in hot summer days, this temperature difference determines whether you can walk barefoot comfortably. Grey systems are more resistant to common pool stains (like leaf marks, water stains, etc.).

Grey WPC deck
Grey WPC deck

Dark Colors

Dark brown, charcoal black, and other dark WPC outdoor colors look grand in appearance. But they need special attention in pool applications. Under direct sunlight, surface temperatures can reach 50-60°C. This easily burns bare feet.

Additionally, dark products require higher UV stabilizer standards. If material quality is poor, fading will be very obvious. We don’t recommend deep grey unless it’s not exposed to sunlight.

Light Colors

Ivory white, light wood color, and other light colors are basically applied in small pool areas. Light colors have high reflectance and relatively lower surface temperatures. They suit hot regions well. Light colors also enhance the sense of open space.

Color Matching Suggestions: Consider overall landscape coordination. WPC decking grey + blue pool is a classic combination. If you pursue natural feel, choose light wood grain color with green plants. Modern minimalist style suggests choosing pure grey with geometric line design.

The light color WPC deck around the swimming pool
The light color WPC deck around the swimming pool

How to Choose the Right WPC Pool Deck Manufacturer?

From the multiple problem projects we have taken over, 90% were caused by choosing the wrong manufacturer. When choosing manufacturers, you absolutely cannot only look at WPC decking price and promotional materials. You must conduct in-depth evaluation from multiple dimensions.

Common Consequences of Wrong Manufacturer Selection

UV Additive Corner-Cutting:  Because anti-UV stabilizers are expensive, costs account for 15-20% of raw material costs. Cheap product manufacturers will use low-end UV agents or reduce addition amounts. This causes serious fading in products within 6-12 months. The key is you cannot discover this after receiving goods. This will cause you great losses.

Process Technology Defects:  Color retention technology requires controlling Delta E values below 2. This needs special co-extrusion processes. Only 5% of manufacturers master this technology. Manufacturers lacking this technology produce WPC composite decking with gloss levels that drop sharply within 2-3 years.

Unstable Quality Control:  Some small manufacturers lack complete quality control systems. Performance differences in the same batch of products may reach over 30%. This causes inconsistent performance after installation. Ecoxplank conducts quality inspections twice before shipping. We completely match sample colors.

You Can Screen Manufacturers Through These Methods

Technical Documentation Completeness: Professional manufacturers will provide detailed installation guides, technical parameter sheets, maintenance manuals, etc. If manufacturers cannot provide these materials, or if material content is rough, this shows insufficient technical strength.

Ask Professional Questions: Ask factories about thermal expansion and contraction, joist spacing, fastener selection, and other technical issues. Professional manufacturers will immediately give detailed technical solutions.

Quality Assurance System: Look at factory production process video details. They must have standardized production lines. Understand the manufacturer’s annual capacity, production line numbers, and key equipment conditions. Professional WPC production needs expensive extrusion equipment and post-processing facilities, plus professional test reports like FSC, CE, ASTM.

Look at Global Experience Projects: For example, Dubai’s extreme high temperatures, strong UV radiation, and dust environments are ultimate tests for WPC deck exterior products. Products that can be used stably in Dubai for over 3 years will have basically no problems in other environments. 

Southeast Asia: Malaysia’s high temperature, high humidity, frequent rainfall, and strong UV conditions are similar to many tropical regions.

Request Actual Photos and Videos: Ask manufacturers to provide project photos, customer contact information, usage years, and other detailed information. If manufacturers cannot provide these, this shows limited experience.

Recommended Manufacturer Types

Ecoxplank WPC decking factory
Ecoxplank WPC decking factory

Based on our industry experience, the following types of manufacturers deserve priority consideration:

Large Comprehensive Manufacturers: Annual capacity over 10,000 tons, with complete industrial chains. They usually have strong technical strength and stable quality.

Professional WPC Manufacturers: Focus on WPC composite products for over 10 years. Although scale may not be large, they have specialized technology and strong innovation capabilities.

Internationally Certified Manufacturers: Manufacturers certified by developed countries like the US and EU. Product quality and management levels are usually higher.

Don’t choose manufacturers only based on WPC decking price. Prices that are too low often mean quality compromises. We recommend focusing on evaluating their technical strength and service capabilities. A responsible manufacturer will actively inform you of product application scope and limitation conditions.

FAQ

Does Swimming Pool WPC Deck really have a 25-year lifespan?

Under correct installation and regular maintenance conditions, high-quality Pool WPC can indeed be used for 25-30 years. But this requires strictly controlling joist spacing ≤305mm, using stainless steel fasteners, and reserving expansion joints as required. If installation is improper, lifespan may shorten to 8-10 years.

Why do WPC Decking Prices vary so much?

Price differences mainly come from raw material quality, production processes, and brand premiums. High-end products use quality wood powder and advanced UV stabilizers. Costs are naturally higher. Cheap products often cut corners on key materials. Although initial investment is low, long-term costs may be higher.

Which is better for family pools - Hollow WPC Decking or Solid WPC?

For family pools, if budget allows, we recommend choosing Solid WPC Decking. It has stronger load-bearing capacity and longer lifespan. If budget is limited, Hollow WPC can also meet basic needs. But you need to shorten joist spacing and strengthen support.

What should you pay attention to when using WPC Decking Outdoor at the seaside?

Seaside use must choose products that pass ASTM B117 salt spray testing. Ordinary WPC will quickly corrode in seawater environments. Also pay special attention to fastener selection. You must use high-grade anti-corrosion materials like 316 stainless steel.

How can you judge the quality of WPC Timber Decking?

Look mainly at these indicators: 24-hour water absorption 35MPa, linear expansion coefficient <2.5×10⁻⁵/°C. Request third-party testing reports from manufacturers. Don't just listen to sales personnel's verbal promises.

Can WPC Composite Decking be installed directly on concrete?

We don't recommend direct installation. Even with concrete foundations, you need to install joist systems to ensure ventilation and drainage. Direct installation will cause thermal expansion and contraction problems. This affects service life.

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