Mammoth Prefab LLC Mammoth Prefab LLC Search | Advanced Search | New Members | Coupons and Discounts | All Categories   Industrial & Manufacturing >> Prefabricated Metal Building and Component Manufacturing Mammoth Prefab LLC 1360 Norton RoadColumbus, OH 43228 | map | directions (800) 614-9620 Need to update your categories or expand your listing? Or want to learn how your business can become a part of the Chamber? Contact us at membership@columbus.org for assistance.