Better Building Materials

The best construction projects start with great materials. Malcom Lumber in Oskaloosa, Montezuma, or Grinnell, Iowa, sells high-quality treated lumber and other building supplies. We also carry cabinetry, windows, and doors from the nation's top manufacturers.


Lumber is a beautiful and versatile building material. We offer a huge variety of high-grade materials for construction projects of all kinds. Our selection includes cedar, redwood, and a range of hardwoods from Lake States Lumber™. We also carry:

• Dimensional Lumber
• Interior Plywood
• Exterior Plywood
• Finished Materials
• Treated Materials

Higher Quality, Lower Prices

Not all lumber is created equal. We carry materials of the highest grade at the best possible prices.
Other Building Materials:

• Sheet Rock
• Insulation
• Concrete Mixes
• Interior Mill Work Products
• Shingles
• Interior & Exterior Doors

Site Delivery

Save time and money with our convenient delivery service. We offer fast delivery of all materials to your construction site.

An Experienced Team

Choose the right materials for your project. Our experienced team members are here to help you find the best products for your needs.