We are located just north of Ravenshoe Road on Highway 48.  Just about 20 minutes north east of Newmarket. 

In business since 1963, there are 5 acres of new and used building materials including lumber, structural steel, windows, doors, even antiques and much more! 

We at National Building Supplies have proudly become a Castle supplier to give our customers even better prices on new building materials. We have new spruce lumber, pressure treated and even a pine barn. We also carry nails, screws, some hardware and other fasteners. We are continuously restocking our new inventory and will always have our re-usable and very unique salvage material that our customers love.

Come on in and take a look around. Our friendly staff will be more than happy to help you find savings on your next project or renovation.