Fonthill Lumber is a prominent supplier of lumber products and roof trusses
Wood Mouldings in St. Catharines and Niagara Region
At Fonthill Lumber Inc., we proudly supply a wide range of premium wood mouldings, including MDF moulding, to support the growing construction and renovation needs throughout St. Catharines, Niagara Region and beyond. Our product offerings include MDF, FJP, and high-quality poplar and oak trim, along with casings, baseboards, and a variety of specialty mouldings. Whether you are a builder, contractor, or renovator, you'll find the ideal moulding solution for your project. Explore our collection and discover the perfect fit for your space.













Why Choose MDF Moulding for Your Next Project?
MDF mouldings are primed white to deliver smooth surfaces, excellent paintability, and consistent quality—perfect for interior trim, baseboards, and casings. At Fonthill Lumber, our MDF moulding options combine cost efficiency with aesthetics, making them ideal for both residential and commercial applications.
· Medium Density Fiberboard (MDF)
Durable and cost-effective primed MDF mouldings ideal for interiors, painting, and fine detailing. Available in a wide variety of profiles.
· Finger Joint Pine (FJP)
Engineered moulding offering the strength of real wood and a clean finish. A wide selection of profiles is available.
· Casings / Backbands and Plinth Blocks
Classic poplar and oak moulding elements that frame doors and windows with style.
· Baseboards
Traditional poplar and oak baseboards are available to add smooth transitions between walls and flooring.
· Doorstops
Functional poplar and oak moulding pieces to protect walls and enhance door finishes.
· Burlaps
Minimalist poplar and oak trim used for clean, modern edge detailing.
· Crowns & Shingles
Elegant crown mouldings that elevate any ceiling-to-wall transition.
· Chair Rails & Panels
Protective and decorative mouldings made from poplar and oak.
· Specialty Products
Custom mouldings for unique trim applications from a variety of wood materials.
· Quarter Rounds & Half Rounds
Perfect finishing moulding available in traditional poplar and oak variations.
· Pilasters / Door Jambs & Thresholds
Architectural moulding components for enhanced door framing and entrances.
· Stools & Nosings
Functional trims for window sills, steps, and transitional edges.
· Handrails & Bottom Plates
Supportive and stylistic wood mouldings used in stair and railing construction.
Our Selection of Wood Mouldings
We supply a wide selection of wood moulding to help our clients achieve the desired design and aesthetic appeal. From medium-density fiberboard (MDF) mouldings and finger joint pine (FJP) mouldings to doorstops to crowns & shingles, we carry a broad inventory of decorative wood trims to complement every construction and renovation project.
Our commitment to quality extends to every aspect of our moulding selection. Each product, from casings and backbands to plinth blocks and baseboards, is crafted with precision and attention to detail in our state-of-the-art manufacturing facility. Whether you are enhancing the elegance of interior spaces or adding finishing touches, our MDF and wood mouldings are designed to meet diverse aesthetic and functional needs.
Leading Supplier of Wood & MDF Mouldings in the Niagara Region
Fonthill Lumber Inc. prides itself on being one of the largest suppliers of engineered wood products, including MDF moulding and wood moulding products in the Niagara Region. Our expansive stock of FJP, casings, baseboards, MDF and other products means builders and contractors can access the materials they need almost instantly.
To meet the evolving needs of the construction industry and the tight deadlines builders and contractors often face, we have expanded our production facilities and opened a retail store to better serve our clients. This expansion ensures faster turnaround and enhanced availability for high-demand items like MDF mouldings and various trims.
Commitment to Quality
Our commitment to quality is our top priority. We conduct rigorous quality checks on all our products — be it wood or MDF moulding — to ensure they meet the highest standards before reaching our customers. Our extensive range of mouldings available in various styles and finishes, paired with professional guidance and personalized recommendations, make us the number one wood and MDF moulding supplier in the Niagara Region and beyond.
In addition to being a trusted source for wood moulding in St. Catharines, we continuously strive to maintain our reputation for excellence. We invest in continuous improvement and training to provide innovative solutions that meet the evolving needs of our clients, ensuring their projects are completed with optimal aesthetic and structural integrity.