Square tube picket fence

Square tube fence is a type of fencing made from square-shaped tubes of metal . These tubes are welded together to create a sturdy and durable fence that can be used for a variety of purposes, including privacy, security, and decorative purposes. 

Square tube fences are often used in residential and commercial settings, and can be customized to fit the specific needs and design preferences of the property owner. They are available in a range of sizes, colors, and styles, and can be installed using a variety of methods, including post and rail systems, welded brackets, and more.