National Hardware 4067BC 1.25 in. x 36 in. Square Metal Tube, Plain Steel (Blue) 16 Gauge, 316257 at Tractor Supply Co.
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12' Long x 2 1/2" x 2 1/2" Square Galvanized Steel Tubing (0.0625" Wall) - Square Steel Pipe | Square Fence Fittings
![1 Inch Square Steel Tubing - Finished - Extended Length - EZTube | Easy to Assemble Aluminum Framing System 1 Inch Square Steel Tubing - Finished - Extended Length - EZTube | Easy to Assemble Aluminum Framing System](https://eztube.com/wp-content/uploads/2015/12/100-102-Black.png)
1 Inch Square Steel Tubing - Finished - Extended Length - EZTube | Easy to Assemble Aluminum Framing System
![10' Long x 2" x 2" Square Galvanized Steel Tubing (0.0625" Wall) - Square Steel Pipe | Square Fence Fittings 10' Long x 2" x 2" Square Galvanized Steel Tubing (0.0625" Wall) - Square Steel Pipe | Square Fence Fittings](https://squarefittings.com/store/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/4/f/4ft-5ft-6ft-8ft-10ft-12ft-long-x-2-inch-x-2-inch-square-galvanized-steel-tubing-0.0625-inch-wall---square-steel-pipe_5.jpg)