Triforest Flooring
Toucan C-06 MDF Primed Bevel Steps Back Bend Casing 1" x 3 1/4" x 8'
Door & Window Casings | Profile: Bevel Step Back Bend | Thickness: 1 | Length: 8'
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Door & Window Casings
Door & Window Casings
Door and window casings frame openings, cover gaps, and create a clean transition from wall to trim. Shop modern square edge casing and traditional profiles in primed MDF casing, wood, and moisture-resistant polyurethane .
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Shop Door & Window Casings
Browse our complete collection of door & window casings.
NAF Flooring
NAF - Floors@Work MDF Primed Flat Stock Casing 3 1/2"
Door & Window Casings | Profile: Flat Stock | Thickness: 5/8" | Length: 8'
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Triforest Flooring
Toucan C-01 MDF Primed Two Steps Back Bend Casing 1 1/4" x 3 1/2" x 8'
Door & Window Casings | Profile: Two Steps Back Bend | Thickness: 1 1/4" | Length: 8'
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NAF Flooring
NAF - Floors@Work MDF Primed Bevel Step Casing 3 1/2"
Door & Window Casings | Profile: Bevel Step | Thickness: 3/4" | Length: 8'
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Triforest Flooring
Toucan C-04 MDF Primed Colonial Back Bend Casing 1" x 3" x 8'
Door & Window Casings | Profile: Colonial Back Bend | Thickness: 1 | Length: 8'
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NAF Flooring
NAF - Floors@Work MDF Primed Modern Edge Casing 3 1/2"
Door & Window Casings | Profile: Modern Edge | Thickness: 3/4" | Length: 8'
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Triforest Flooring
Toucan C-02 MDF Primed Two Steps Casing 3/4" x 3 1/2" x 8'
Door & Window Casings | Profile: Two Steps | Thickness: 3/4" | Length: 8'
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NAF Flooring
NAF - Floors@Work MDF Primed Colonial Casing 2 3/4"
Door & Window Casings | Profile: Colonial | Thickness: 1/2" | Length: 7'
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Triforest Flooring
Toucan C-05 MDF Primed Colonial Casing 1/2" x 2 3/4" x 7'
Door & Window Casings | Profile: Colonial | Thickness: 1/2" | Length: 7'
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NAF Flooring
NAF - Floors@Work MDF Primed Colonial Back Bend Casing 3"
Door & Window Casings | Profile: Colonial Back Bend | Thickness: 1" | Length: 8'
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Triforest Flooring
Toucan C-03 MDF Primed Colonial Casing 3/4" x 3 1/2" x 8'
Door & Window Casings | Profile: Colonial | Thickness: 3/4" | Length: 8'
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NAF Flooring
NAF - Floors@Work MDF Primed Colonial Casing 3 1/2"
Door & Window Casings | Profile: Colonial | Thickness: 3/4" | Length: 8'
Contact for price
Triforest Flooring
Toucan C-07 MDF Primed Bevel Step Casing 3/4" x 3 1/2" x 8'
Door & Window Casings | Profile: Bevel Step | Thickness: 3/4" | Length: 8'
Contact for price
Triforest Flooring
Toucan C-08 MDF Primed Flat Stock Casing 5/8" x 3 1/2" x 8'
Door & Window Casings | Profile: Flat Stock | Thickness: 5/8" | Length: 8'
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Why Door & Window Casings Stands Out
Door and window casings (also searched as casing trim or window trim) are the finishing details that make openings look intentional and polished. Casings cover the gap between drywall and the door or window frame, protect edges, and help define the overall interior style. If you are searching for door and window casing suppliers near me in Toronto, Mississauga, or Barrie, Squarefoot Flooring stocks paint-grade and stain-grade casing options to suit renovations, new builds, and full-home trim packages across Ontario.
Read Full GuideShow Less
Choose the right casing style
Modern square-edge vs traditional profiles
- Modern square edge casing profile: straight lines, minimal detail, and a clean look that pairs well with shaker baseboards and flat stock trim.
- Craftsman style casing: thicker, more architectural trim that can be built up using flat stock and header details for depth.
- Traditional profiles: layered and contoured looks (colonial, ogee, stepped profiles) that suit classic homes and formal rooms (profile dependent).
Material guide
MDF vs wood vs polyurethane
MaterialBest forWhat to knowPrimed MDF casingPainted interiors and smooth, consistent finishesCost-effective, paint-ready, and widely used for modern trim. Seal cuts and joints well and avoid direct wet exposure (room dependent).Wood casingStain-grade trim and higher-impact areasNatural grain, higher durability, and stain options. Can move with humidity, so acclimation and proper finishing matter (species and site conditions dependent).Polyurethane casingMoisture-prone spaces and low-maintenance trimLightweight and moisture-resistant. Use the recommended adhesives and fastening method for best results (product dependent).Width, scale, and room design
How wide should casing trim be?
Many shoppers look for large profile trim to make ceilings feel taller and doorways more substantial. Narrow casings suit smaller rooms and lower ceilings, while wider casings can elevate open-concept spaces and older homes with taller walls. If you are matching existing trim, bring a sample or measurements so the profile and width stay consistent.
Installation details that improve the finish
Joints, gaps, and clean lines
- Wall flatness: uneven drywall allows gaps behind casing. Light patching and planning for shims helps the trim sit tight (site dependent).
- Fastening: use the right nails and spacing to avoid bowing and to keep corners tight (product and wall dependent).
- Sealing and finishing: fill nail holes, caulk along edges, and paint for a seamless paint-grade look. For stain-grade trim, use stainable fillers and finish to match (finish dependent).
Door & window casing near me
Toronto, Mississauga and Barrie pickup
Squarefoot Flooring supports contractors and homeowners across Ontario with pickup in Mississauga and Barrie, serving Toronto and surrounding areas. Visit to compare MDF trim stock, wood casing, and moisture-resistant options for your next project.
Still Have Questions?
Quick answers to the questions homeowners ask most before buying.
What are door and window casings used for?
Door and window casings frame openings, cover the drywall-to-frame gap, protect edges, and create a finished transition that defines the room’s trim style.
What is a modern square-edge casing profile?
A modern square-edge casing uses clean, straight lines with minimal detail. It is often made from flat stock or simple squared profiles to suit contemporary interiors.
Is primed MDF casing a good choice for interiors?
Yes, primed MDF casing is a popular paint-grade option because it is smooth, consistent, and cost-effective. It is best for dry interior spaces and should be properly sealed at cuts and joints (room dependent).
When should I choose wood casing instead of MDF?
Choose wood casing when you want a stain-grade finish, higher impact resistance, or natural wood grain. Wood can expand and contract with humidity, so acclimation and finishing matter (species and site conditions dependent).
Are polyurethane casings good for basements or moisture-prone areas?
Often yes. Polyurethane casings are lightweight and moisture-resistant, making them a common choice for basements or other areas where low maintenance matters. Confirm product ratings and installation requirements (product dependent).
How wide should door and window casing be?
Casing width depends on ceiling height, wall space, and style preference. Wider casings can look more architectural, while narrower casings suit smaller rooms. Matching existing trim is usually the best approach.
How do I get tight casing joints and clean corners?
Accurate measuring, proper fastening, and wall prep help. Fill nail holes, caulk paint-grade edges, and ensure corners are cut and fit cleanly. Uneven walls may require shims or minor patching (site dependent).
Where can I buy door and window casings near me in Toronto, Mississauga, or Barrie?
You can buy door and window casings at Squarefoot Flooring with pickup in Mississauga and Barrie, serving Toronto and customers across Ontario.
Mississauga & Barrie Locations
Two Stores, Mississauga and Barrie, One Team
Tile and flooring decisions are hard to make from a thumbnail. Visit either store to see full-size samples under real lighting, review manufacturer specifications with our team, and speak with the same crew that installs these floors every week.
Toronto • GTA West
Full Product Selection
Specification Desk
GTA Coverage
Full-size samples, a dedicated specification desk, and our deepest in-stock inventory across hardwood, vinyl, laminate, tile, and natural stone.
Simcoe County • Cottage Country
Cottage Country Projects
Sample-Ready Inventory
Simcoe County Coverage
Deep inventory for cottage-country projects: wide-plank engineered hardwood, freeze-thaw tile, and waterproof options. Confirm each product’s published temperature range and seasonal application limits.
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Not everyone can visit a store right away. Send photos, room measurements, product screenshots, or questions by text and our team will help you narrow down options before your visit.
Text UsDelivery and Installation
We deliver materials and install flooring throughout the GTA, Simcoe County, and surrounding communities using our own in-house installation crews. Most projects can be measured, quoted, supplied, and installed through a single point of contact.
Contact Our TeamStore Consultations
Book a store visit or in-home measurement when you are ready. Availability varies by week; many homeowners schedule within a few business days. Bring room conditions and we will help review manufacturer temperature, acclimation, expansion, sunlight, and warranty limits.