5-gallon pails are widely available with two wall thickness's .070 mil and .090 mil. Common sense dictates that the thicker wall pail is more durable, and will hold up better to the rigors of the barnyard. (The .090 pail is 20% thicker). Wall thickness is a factor to consider as we drill holes into it for our poultry drinkers or pipe attachments. Additionally, if you intend to hang your pail from the wire handle, the .090 mil lasts MUCH longer. Though the thicker walled bucket is a bit more expensive, and not as easy to find, I'd recommend it over the typical .070 mil model.