A full-service lumberyard and quality construction services

Whether you’re a contractor, do-it-yourselfer or choose us to build it for you, look to Key Cooperative Lumber & Construction Services for any of your building projects.

Lumber & Construction Services

Key not only builds homes; we build dreams.

Materials, design and construction from people you know

With a long-standing tradition of quality, our full-service lumberyard has served local Iowa communities for generations. Our experts can help you with any construction project, no matter how small or large.

Whether you want to design and build a new home, remodel an old barn, or build a machine shed, Key can guide you from start to finish. We can also help you with roofing projects, door and window replacement, and other home renovation projects.

We also supply superior building materials and trusted brands to do-it-yourselfers and contractors. Whether you stop by the lumberyard or need construction-site delivery, our personable, knowledgeable staff is ready to assist.


Lumber & Construction Office

402 6th Ave, Sully, IA 50251

Hours: 7 a.m. to 5 p.m. Monday through Friday
7:30 a.m. to 11 a.m. Saturday

Construction Services Team


Energy & Retail Center

A Retail Center Just Right for our Small Town

The Energy & Retail Center is still member-owned but has a unique model all its own. A building that has worn many hats over the years, now offers all things retail right in one spot. Stop in to order auto parts, exchange your propane cylinder, pick up pet food or purchase anything for engines - from oil to hydraulic fluids and all lube & grease products, we’ve got you covered.

Energy & Retail Center

506 5th Ave, Sully, IA 50251

7 a.m. to 5 p.m. Monday through Friday

Energy & Retail Center Services

Products & Services that offer convenience to rural & in-town customers alike


The Center is home to one of our 24-hour fueling stations but also offers a full line of Cenex brand oil, hydraulic fluids, lubricants and grease products. Bulk oil and diesel exhaust fluid (DEF) products can also be ordered and even delivered by request. To fuel for your grill or camper, stop in to exchange your propane cylinders any time of the year.

Purina Pet Foods

Find the best food for your dogs, cats or other pets. If you’re a family who shows animals, we can hook you up with those great Purina products too.

Auto Parts & Tools

For years, we’ve offered auto parts and even tools at the Retail Center. Whether it’s for a car, truck or farm machinery, we can keep you rolling. Stop in or call and we’ll place a next day delivery order just for you.