GSI 40 Series Grain Storage Bins

The GSI 40-Series™ are corrugated steel storage bins with capacities up to 1.9 million bushels. They are available with stiffened and unstiffened walls with diameters up to 156′ and have JS500 bolts paired with sealing washers to protect the commodity.

Each GSI bin is efficiently designed to handle maximum loads for unmatched strength. Most sidewall sheets are manufactured from high-tensile steel that is rated at 70,000 psi (480MPa) or greater.

The 40-Series™ roof panels incorporate a 3” (76.2 mm) tall rib with over and under lap profiles ensuring a precise fit. 3-bend rib profiles are also incorporated in the design for increased strength to stand up even in the harshest of environments.

Bin floors are galvanized for lasting durability and feature a unique locking system that reduces floor movement and supports extreme load conditions.

GSI’s 4032 36’ (10.97 m) and larger feature the precision-engineered Z-Tek™ Roof System. Designed for increased load capacity, the system incorporates z-shaped rafters and purlins, clips, peak ring, flat top, and roof panel for unsurpassed strength and protection.

Durable and weather resistant GSI stairways, ladders, cages, platforms, sidewall doors, steps, and roof caps are designed to provide safe, convenient access points.


  • -up to 1.9 million bushel capacity
  • -diameters do 156’
  • -high-tensile galvanized steel
  • -3” tall rib overlap


  • -up to 2 ga. Stiffeners
  • -ladders/stairs
  • -platforms
  • -access doors
  • -fans
  • -dryers
  • -level sensors


  •  Air: NA
  •  Electrical: TBD
GSI 40 Sereis Grain Bin

GSI 40 Series Grain Storage Bins

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