Complete your home installation with Costco’s Flooring Accessories collection, engineered to deliver professional, seamless transitions and a polished, long-lasting finish. The key to a successful floor renovation lies in the details—matching high-quality trim to your vinyl, laminate, or engineered hardwood creates clean lines and protects your floors from edge wear.

Our selection features durable finish moldings (including baseboards, quarter rounds, and wall trims) to neatly cover expansion gaps, along with essential transitions—such as T-moldings, reducers, and threshold strips—to seamlessly connect different floor heights and flooring types between rooms. For multi-level upgrades, explore our heavy-duty stair tread kit options designed to enhance safety, reduce noise, and match your new flooring perfectly. Rely on flooring trim and installation accessories at Costco for easy DIY fitting, durable materials, and wholesale value that elevates your entire renovation project.