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  • Lumber and Building Materials

    Lumber and Building Materials

    We have the expertise that builders,
    new homeowners and renovators need.
  • Paint


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  • Flooring


    Click here to discover new colors for your room
  • Windows


    Start your day off right with a clear view.
  • Doors


    Refresh your room with a whole new entrance
  • Payment Flexibility

    Payment Flexibility

    Buy now. Pay Later. Whatever works for you. That’s the Flexiticard.
  • The perfect gift card to any homeowner

    The perfect gift card to any homeowner

    Get a Castle gift card today - Learn More

September 2020 Deals


Drop shipments available. Order now! 

Westman Lumber Supply is your trusted building supply partner, serving the needs of contractors, builders and consumers. We provide expert advice and competitive pricing for lumber, building materials, insulation, drywall, roofing materials and hardware for the Brandon, Manitoba area.

As of Spring 2016 we have expanded our business by opening our retail store at 1875 Middleton Ave. Check out our online catalog for 50,000+ products.

Currently, we offer drop ship delivery services to your building site. Request a quote or contact us for more information.

Contractors, contact us and get your free quote today!

Ask us about MoistureShield Composite Decking

The Solid Core Difference™

We offer the only composite boards in the industry that can be installed on the ground, in the ground or underwater without any structural performance issues. At the foundation of every board is our proprietary Solid Core — an impermeable barrier that fights damage from moisture, rot, insects and other harmful elements. Our core maintains its integrity even after ripping and cutting, mitigating warranty issues and long-term damage. The result is a long lasting, low maintenance decking material specially engineered to last for years to come.

MoistureShield Logo

About Us

We are your one-stop building supply centre

Westman Lumber Supply Ltd. opened its doors in 2016, and is a proud member of Castle Building Centre Group. You can visit us at our extensive retail store for building materials including plumbing, electrical, paint, hardware, tools, interior doors and mouldings, windows, and much more. With 50,000 products from hundreds of vendors to choose from, if there is something you can't find, we can special order it in!

It has been the goal of this family-owned businesses to offer a one-stop shop for your all your building needs. One call to our experienced staff members is all it takes to assist you with your building needs. We strive to offer quality service and products at an affordable price. We want your building experience to be a great one, whether the project is large or small. We have been blessed to be part of this community for many years, and it is our intention to be a part of this community for many more. Interested in working with one of our teams? Visit employment opportunities to apply today.

We are Canadian

We are an independent dealer. We run our own store, we own our business. Our families and staff are part of the fiber that makes up our local community. We are committed to serving your needs.

We are a member of Castle Building Centres Group Ltd, a 100% Canadian co-op buying group owned by members just like us. Castle serves the needs of Canadians from coast to coast to coast. Since 1963, builders, contractors, DIYers and customers have relied on independent business people like us, to deliver quality lumber, building materials and hardware at competitive pricing.

If you're looking for something special, visit us in-store, browse our online catalog or request a quote right now. If you can't find it, please let us know and we'll be pleased to get it for you! That's what neighbours do for one another.

We are your trusted building supply partner.

Request a Quote