Your Trusted Building & Hardware Supply Partner - Since 1950

Contractors, do-it-yourselfers and homeowners trust Knowles Building Centre in Kapuskasing for selection, service and experience. Nobody will out-service our team when it comes to construction, renovation, home exteriors, decorating and tools. That's our promise to you!

If you're ready to start your renovation project, then now is the perfect time to talk with our professional staff – they want to help you find what's right for your needs. We've also included links to some of our suppliers' websites. If you don't see what you are looking for, let us know and we'll be happy to get it for you. And we've got gift cards for year-round gift giving!

If you're planning on building a new cottage, cabin, home or garage, Knowles Building Centre can give you a free quote for all the building materials and hardware you need. We can supply all your kitchen, bathroom and house remodelling needs with our stock of building materials, lumber, insulation, drywall, paint supplies, roofing materials, flooring, doors, windows, siding, decking hardware and more! We're your renovation specialists in Northern Ontario.

Browse over 50,000 products online, visit our building center, request a quote or contact us.

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Contact Us


Visit our store at:
1 Queen Street
Kapuskasing, ON P5N 1G4

Monday - Friday: 8:00am - 5:00pm
Saturday: 8:30am - 2:30pm

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Serving the Community of Kapuskasing and Surrounding Area for Over 70 Years


Start an easy home reno project today. A new coat of paint can take a room from drab to fab, or make your deck look brand new! By simply using stains or colour, you can liven up a mood or quiet it down. You can add warmth or coolness, boldness or a subtle touch. We can help you pick the colour that is best for your needs!

Learn More About Our Paint & Stain Products


Browse Thousands of Products Online

Building materials, household items, hardware, safety products, seasonal items and more in our online catalog including:

  • Cleaning Supplies
  • Electrical Products
  • Fasteners
  • Flooring & Accessories
  • Hand tools
  • Hardware
  • Heating & Cooling
  • Houseware Products
  • Insulation & Vapour Barriers
  • Kitchen & Bath Cabinets
  • Lawn, Garden & Seasonal
  • Masonry Products
  • Moulding
  • Paint & Sundries
  • Plumbing
  • Power Tools
  • Roofing & Foundation
  • Safety Products
  • Siding, Soffits & Gutters
  • Wallboards, Panels & Tiles
  • Windows & Doors
Our online catalog doesn't include our full product offering so If you don't see what you are looking for, let us know and we'll be happy to get it for you. 

Browse Catalog