Summer in Michigan means long lake days, fun-filled boat rides, and relaxing evenings spent by the water.
What it shouldn’t mean? Sanding, staining, replacing warped dock boards, or worrying about splinters before you even step onto your dock.
If you’re wondering whether composite decking for docks is a smart investment, the short answer is yes — and for good reason.
In the article below, we’ll explain:
Composite decking is one of the best materials you can use for a dock.
It’s specifically engineered to resist moisture, prevent rot, reduce maintenance, and withstand constant sun and water exposure.
Unlike traditional wood, composite decking:
If you’re looking for a durable, low-maintenance, and long-lasting solution, composite decking for docks is a smart upgrade.
A dock is one of the harshest environments you can build in. Unlike a backyard deck, a dock is constantly exposed to:
Traditional wood materials struggle in these conditions because they naturally absorb moisture. Over time, that leads to:
That’s why more homeowners are turning to composite decking for docks — a material engineered to withstand moisture without sacrificing strength or appearance.
Here’s a quick breakdown of how common dock materials compare, including pressure-treated lumber, cedar, hardwood, and composite decking:
| Material | Moisture Resistance | Maintenance | Longevity | Splinter Risk | Overall Suitability for Docks |
| Pressure-Treated Lumber | Moderate | High (stain/seal annually) | 10–15 years | High | Fair |
| Cedar/Softwoods | Low– Moderate | High | 8–12 years | High | Poor–Fair |
| Hardwood (Ipe, etc.) | Moderate | Moderate–High | 15–25 years | Moderate | Good but costly |
| Composite Decking | Excellent | Low | 25+ years | None | Excellent |
While pressure-treated lumber may cost less upfront, the long-term maintenance and board replacement costs add up quickly — especially in a lakeside environment.
Composite decking is specifically designed to resist the very conditions that cause wood docks to deteriorate.
When you invest in a lakefront property, your dock should be built to last. Here’s a closer look at why more homeowners are choosing composite decking for their docks.
Composite decking is made from a blend of recycled wood fibers and plastic, then capped with a protective shell. This outer layer prevents moisture absorption, helping eliminate rot, swelling, and decay — the biggest enemies of dock longevity.
Traditional wood docks require ongoing maintenance, including:
Composite decking requires only occasional cleaning with soap and water. That means more time enjoying the lake and less time maintaining it.
Docks take abuse from boat traffic, wet feet, and shifting seasonal temperatures. Composite boards are engineered to maintain structural integrity and appearance for decades, not just a few seasons.
Splinters are among the most common complaints about wood docks. Composite decking eliminates that issue, creating a safer surface for bare feet, kids, and pets.
Quality composite decking is built to resist fading from UV exposure. It also resists staining from:
Your dock stays looking newer, longer.
Many composite decking products are made from up to 95% recycled materials — including reclaimed wood fibers and plastic film. Choosing composite helps reduce landfill waste while preserving natural forests.
Unlike wood, which has no longevity guarantee, premium composite brands offer 25-year (or longer) warranties, providing peace of mind for your lakeside investment.
While wood has been traditionally used for docks, it presents several challenges:
Pressure-treated lumber is often chosen because it’s affordable and widely available, but it’s not built for constant water exposure.
Cedar and other softwoods are valued for their natural appearance and some inherent resistance to insects, but they remain vulnerable around water.
Hardwoods like Ipe are sometimes viewed as a premium dock material due to their density and strength, but they come with trade-offs.
For most homeowners, the long-term costs, maintenance burden, and safety concerns make wood a less practical solution than composite decking for docks.
Not all composite decking is created equal. When choosing the best composite decking for docks, look for:
At Zeeland Lumber & Supply, we proudly carry Trex® composite decking — the #1 composite decking brand in the world.
Trex addresses the most common dock decking issues head-on. Some of its standout features include:
Advanced Protective Shell
Trex boards feature a durable outer shell that resists:
This makes Trex an excellent choice for high-moisture environments, such as docks.
95% Recycled Materials
Trex decking is made from 95% recycled wood and plastic film, helping divert thousands of plastic bags from landfills each year.
Forget sanding or staining. Trex maintains its appearance without the seasonal work wood requires.
Unlike traditional lumber, Trex is not a food source for termites or carpenter bees.
Trex products are backed by strong warranty coverage, giving dock owners long-term confidence.
Trex offers a variety of natural-looking tones, from light coastal shades to rich wood-inspired finishes — allowing you to match your home, shoreline aesthetic, or boat lift setup.
While composite decking has a higher upfront cost than pressure-treated lumber, it typically is the best solution in the long run. Benefits of composite decking for docks include:
For most lakefront homeowners, composite decking for docks quickly pays for itself by saving on labor, materials, and frustration.
If you’re tired of sanding, staining, or replacing warped boards every season, it may be time to consider composite decking.
At Zeeland Lumber & Supply, we carry a wide range of Trex decking options and can help you determine the best composite decking for your dock based on your layout, usage, and shoreline conditions.
Stop by one of our locations or contact our team today to start planning a dock that delivers more time on the water — and less time maintaining it.
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