Northern Agri-Services is a warehouse for GSI-Grain Systems, Inc. Grain Bins. We sell both farm and commercial complete storage, conditioning and handling system applications. GSI grain storage bins are constructed using high tensile steel sidewall sheets, up to 65,000 p.s.i. minimum. Sheets are available in 2.66' or 4.00' corrugation. GSI farm bins are secured with heavy duty J-bolt or U-bolt hold down brackets. The anchor brackets are formed to match the corrugated side-wall sheets and placed outside the bin for easy installation and adjustment. A 30' diameter peak opening allows fast filing, easy access to overhead equipment and greater air flow during drying. GSI fabricates bin roofs out of prime, high tensile, G-90 galvanized steel.