The Vittles Vault line of stackable containers are very popular for bulk grain storage.
They are food grade and airtight. They have a large easy access opening and the ability to stack makes them space efficient. Heavy Duty construction and easy spin off and on lid. Lid features lock-down double gaskets. The body includes molded handles for easy carrying. Made from FDA approved Food Grade Plastic and BPA Free.
This one is rated for 50 lbs. The 50 lb rating means it should hold a sack of grain.
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Vittles Vault 50-Pound Stackable – multiple size options available
Thanks to Twitter Follower @chillindamos for these photos! [Connect with HBF on Twitter] This is the 50 lb stackable size with a full 25 kg bag of grain in it. That’s about 55 lbs and there’s still some room.
The 50 lb size stacked with two 15 lb capacity containers