our consumer, expanding the channel partnerships in both the pro and home centers and continuing to drive operational excellence, efficiency, and safety.
Our team has higher expectations for future growth, and there are several very positive achievements in 2025 that will allow us to maintain and build on our track record of outperforming the broader market in both up and down cycles. I want to begin by highlighting the market response to Trex's new product releases. Products introduced over the last 36 months continue to show robust growth, representing 24% of our 2025 sales, up from 18% last year.
This speaks to the strength of our product design and development programs, which combine new performance features with leading aesthetics that align with consumers' evolving preferences. One clear example of this alignment is our SunComfortable™ heat-mitigating technology, which we extended to new decking products, bringing this very popular feature to a broader consumer audience at an accessible price point.
Perhaps the most exciting highlight of the past year was the success we achieved in the execution of our multiyear railing strategy. Several years ago, we set out to disrupt the railing market as we did with decking over 30 years ago. After engineering a full line of railing products across a broad range of price points and investing in best-in-class distribution and channel partners over the past two years. In 2025, we achieved robust double-digit growth in railing.
We're very encouraged by the recent stocking wins and displacement of competitive products in both the pro and home center channels. The momentum built in 2025 has us on track to achieve our longer-term goal of doubling our share of the railing market by the end of 2028.
Next, I want to turn our attention to the development of our Arkansas campus, which continues to deliver on its construction and start-up schedule, including on-site production of plastic pellets, reducing our reliance on more expensive external sourcing. When we made the decision to invest in Little Rock, the industry overall was approaching full capacity.
And then through the growth years of COVID, it became clear that capacity to meet consumer demand would be key to long-term growth. While the industry growth curve has moderated in recent years, I'm confident that the capacity we add in Little Rock will fuel Trex's growth and result in cost optimization and margin opportunities for years to come.
And lastly, we further strengthened our positioning in the pro and home center distribution channels in 2025 and into early 2026. With expanded pro channel relationships and a meaningful increase in stocking locations at the home centers covering both decking and railing products. These wins reflect the strength of the Trex brand and the advantages of our expanded product portfolio in terms of both performance and aesthetics.
Trex remains the only wood alternative supplier with a significant presence in both of the country's largest home centers, both on shelf and special order. These highlights represent the early results from increased investments we have made and will continue to make in R&D, sales and marketing, digital technologies, and utilizing our capacity to drive accelerated growth.
Our improved market incentives have resonated well with our pro dealers and contractors, and we're seeing increasing commitment to Trex as they're making their early buy stocking and selling decisions. Additionally, we've seen early positive results from our new marketing campaigns and digital investments.