AGI 4" stiffened grain bins are engineered for superior strength. Its heavy-duty super-robust walk-in design gives you the flexibility to add tiers to your bin when required without having to upgrade your door. It also features a more precise, cleaner assembly without unsightly welds for a super-tight fit. An improved latch design makes the door easier to open and operate, and the redesigned doorframe eliminates all gaps for the best seal possible. Ranging from 2,940 - 722,200 bushels.