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Firestop Products

For all your construction projects in MI and OH

GSC, Ryan, and ASI

Premier Firestop Suppliers in OH and MI

Construction professionals in Michigan and northwest Ohio have known for decades – for the best selection of firestop supplies and fire-rated products in the Great Lakes region, there are three great choices.

Gypsum Supply Company (GSC) – serves residential and commercial construction customers through its yards throughout Michigan (Ann Arbor, Byron Center, Kalamazoo, Lansing, Traverse City, and Zeeland), and northwest Ohio (Holland).

Ryan Building Materials (Ryan) – serves commercial and residential builders through its yards across eastern central Michigan. (Harrison Township, Southfield, Troy)

ASI Building Products (ASI) – serves construction professionals and homeowners through its yards across southeast Michigan (Detroit, Saginaw, Southfield).

As fellow members of the GMS family of companies, unified in a commitment to exceptional customer service, the combined resources of GSC, Ryan, and ASI offer a broad assortment of building materials.

Top Firestop and Fire-Rated Products in MI & Northwest OH

Having the right firestop products on hand helps make jobs faster, safer, and more efficient. That’s why we carry a variety of firestop and fire-rated products for both residential and commercial applications, including:

  • Fire caulks (tubes and pails)
  • Fireproofing (bags)
  • Fire-safing (4"x24")

Fire-Rated Lumber

Many building codes require the use of lumber treated with fire-retardant materials. Fire-rated lumber has all the same applications and versatility of traditional lumber, but significant advantages in terms of safety and overall cost-efficiency.

In the event of a fire, structures built with fire-rated lumber catch or burn much more slowly, providing crucial extra time for firefighting and evacuation. With results like significant potential savings of life and resources, the benefits of using fire-rated lumber cannot be overstated.

Our dimensional fire-rated lumber and plywood products include:

  • 2 x 4 x 8 fire-rated lumber
  • 2 x 6 x 8 fire-rated lumber
  • ½” fire-rated plywood
  • ¾” fire-rated plywood
  • 5/8” fire-rated plywood

Buy Quality Fire-Rated Products at GSC, Ryan, or ASI

All the fire-rated and firestop products you need for your commercial or residential building projects are right here. Gypsum Supply Company, Ryan Building Materials, and ASI Building Products carry a full line from top manufacturers, including:

Firestop Products Delivered to Michigan/Ohio Jobsites

ASI, Ryan, and Gypsum Supply Company deliver! It’s true of the quality fire-rated products we provide, and especially true when it comes to exceptional customer service.

When you have building accessories delivered to your commercial or residential worksites in Michigan and northwest Ohio, you can rely on GSC/Ryan/ASI to also provide:

  • Exactly the products and accessories you need for your local building projects
  • Full stock and scatter delivery service within ~90 miles of our yards in MI and OH
  • Pre- and post-delivery jobsite inspections to ensure product quality
  • A company-wide focus on safety and regulatory compliance for all employees

Call us or visit one of our construction yards in Michigan and northwest Ohio today.

Construction Products for All Your Needs

GSC, Ryan, and ASI also supply a full range of building materials including drywall, joint treatment, acoustical tiles, tools and more! Whatever the construction job; we’ve got the products you need to get it done right.