Moulding trim is the family of finishing and transition mouldings that complete a room — the quarter round, shoe, stair nose, crown and accent profiles that cover gaps, ease transitions between surfaces, and add detail. This collection focuses on those finishing pieces; for the bigger picture of baseboards and trim across your whole home, see our baseboards and trim hub. (You’ll see it spelled both “moulding” and “molding” — they mean the same thing; we use the Canadian spelling, moulding.) Below, we cover the types we carry, materials, profiles and how to install them.
We carry the finishing and transition mouldings most projects need, from floor mouldings that cover a gap to crown that finishes a ceiling. Each type has a specific job.
Quarter round and shoe moulding are small floor mouldings that cover the gap where a baseboard or cabinet meets the floor. They’re the finishing touch on a flooring job, hiding the expansion gap and any unevenness along the floor line.
Quarter round is a moulding with a quarter-circle profile, used along the base of baseboards and cabinets. Its rounded face is a classic, forgiving way to close a gap and add a soft edge.
Quarter round covers the expansion gap left between the floor and the baseboard — a gap the flooring needs in order to move, but that looks unfinished if left open. It nails to the baseboard, not the floor, so the floor can still expand underneath.
Base shoe (shoe moulding) is slimmer and taller than quarter round, with a more upright profile. It suits the same job where a lower-profile, more modern look is wanted.
Transition mouldings bridge the change between two floors or two surfaces — where hardwood meets tile, or one room’s floor meets another. Choosing the right transition depends on whether the two surfaces are the same height.
T-moulding has a T-shaped profile that joins two hard floors of the same height, such as hardwood meeting hardwood in a doorway. It sits in the gap and lets both floors expand.
T-moulding is the choice where two floors of equal height meet, giving a clean seam that lets both sides move with humidity.
A reducer transitions from a higher floor down to a lower one — for example from hardwood down to tile or vinyl. Its sloped profile eases the step so there’s no hard edge to catch.
Use a reducer where a floor meets a thinner or lower surface, so the higher floor tapers down smoothly to the lower one.
Stair nose finishes the exposed front edge of a stair tread or landing, giving a rounded, safe edge where the flooring stops. It’s essential wherever flooring runs to the edge of a step.
Stair nose caps the leading edge of a tread so the flooring is protected and the step has a defined, safe nosing.
Crown moulding runs where the wall meets the ceiling, adding a finished, decorative transition overhead. It ranges from simple, subtle profiles to tall, elaborate ones for formal rooms.
Panel and accent mouldings are decorative profiles used on walls, cabinetry and built-ins to add detail — picture-frame panels, applied trim and corner pieces.
Outside corner moulding covers and protects an exposed outside wall corner, giving a clean, finished edge where two walls meet.
Cove moulding has a concave profile for softer inside transitions, and panel moulding frames wall panels and built-ins for a custom, detailed look.
The difference between wood and MDF moulding comes down to finish, cost and where it’s used. MDF moulding is smooth, stable and economical for painted work; solid wood is the choice for stain-grade profiles and higher-moisture areas; polyurethane offers a lightweight, moisture-proof option for some decorative profiles.
MDF and pre-primed moulding are ideal for painted finishing trim — smooth, consistent and cost-effective, with no grain to show through paint. They’re the common choice for quarter round, shoe and painted crown.
Solid wood moulding — pine, poplar and others — is the pick for stain-grade work and where extra durability is wanted. It takes stain to match hardwood floors and stairs, which is why it’s popular for stair nose and matching floor mouldings.
Polyurethane moulding is lightweight, moisture-resistant and won’t rot, making it useful for some decorative and exterior profiles. Flexible moulding bends to follow curved walls, arches and radius stairs where rigid stock can’t.
Moulding comes in a wide range of profiles and sizes, so the right choice is about matching the moulding to the job and the look. A finishing moulding should suit the trim around it — the same wood species or paint colour, and a profile that complements your baseboards and casing.
Choose a profile that matches the scale and style of the room: simple, low-profile mouldings for modern spaces, and more detailed profiles for traditional trim. Bring a photo of your existing trim and we’ll help you match.
If you’re matching trim in an older home, a custom or historical moulding profile can often be reproduced or closely matched. Bring in an offcut and we’ll help you find the nearest stock profile or advise on a custom run.
Moulding trim, baseboards and casing are related but do different jobs — and it helps to know which page you need. Baseboards run along the base of a wall and casing frames doors and windows; the finishing mouldings here (quarter round, shoe, transitions, crown, accent) complete and connect those elements. For baseboards, see our baseboards and trim hub; for door and window casing, see casing trim. And to settle a common question: crown moulding runs at the top of the wall where it meets the ceiling, while baseboards run at the bottom where the wall meets the floor.
Most moulding trim can be installed by a confident DIYer with the right cuts, though transitions and crown reward some practice. The method depends on the type of moulding.
Quarter round and shoe are mitred at outside corners and coped at inside corners for a tight fit, then nailed to the baseboard (not the floor) so the floor can move. A brad nailer makes quick work of it.
Floor transitions are fastened with a track, nails or adhesive depending on the profile and floor type, and are sized to the gap between the two floors. Follow the flooring manufacturer’s method so the floors can still expand.
Moulding is sold by the linear foot, so measure the runs you need and add for waste. For floor mouldings, measure the perimeter of the room; for transitions, measure each doorway or floor change; for crown, measure the top of each wall — then add about 10% for mitre and coping waste.
You can order moulding trim online or see it in person at our Markham or Etobicoke showrooms — and for profiles, in person helps. Moulding profiles look different in the hand than on a screen, so we encourage you to see and feel them, take a sample home to check against your floors and trim, and use our complimentary design consulting to match everything up. Delivery is included on select orders across the GTA and beyond.
We stock the finishing and transition mouldings that complete a flooring or trim project, in the materials and profiles to match your floors, stairs and trim. Our team can help you pick the right transition for a floor change, match a stain-grade stair nose to your hardwood, and coordinate finishing mouldings with your baseboards and casing. See it in person, lean on our complimentary design consulting, and count on us for accurate advice for both homeowners and contractors.
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