There's no standard size for commercial trash cans, but the most common size is in the 30 to 35-gallon range. At Bright Idea Shops, we carry a wide selection of outdoor trash receptacles in various sizes and designs. From our Slant-Top Outdoor Waste Receptacles with 22-gallon drums to our Jumbo Trash Receptacle for up to 60-gallon drums, you're sure to find the ideal trash receptacles for parks, walkways, businesses and so much more.