An alternative and durable support option to the square tube is the Aluminum Round Tube. Suitable for use on machine stands, table legs, cart frames
Everbilt 1 in. x 36 in. Aluminum Flat Bar with 1/8 in. Thick
Everbilt 72 in. x 1 in. x 1-1/16 in. Thick Square Tube 801127
Everbilt 36 in. x 3/4 in. x 1/16 in. Plain Steel Round Tube 801237
Everbilt 1/8 in. x 36 in. Round Rod Brass 800857 - The Home Depot
Paulin 1 x 36-inch Aluminum Round Tubing
Aluminum Round Tube 6061 Metal Supermarkets, 60% OFF
Current Battery Extender
Everbilt 3/8 in.-16 tpi x 24 in. Zinc-Plated Threaded Rod 802167
Current Battery Extender
KICHLER Independence 36 in. 6-Light Brushed Nickel Transitional
Paulin 3/4 x 36-inch Aluminum Round Tubing
Everbilt 2 in. x 36 in. Aluminum Flat Bar with 1/8 in. Thick
Everbilt 36 in. x 3/4 in. x 1/16 in. Aluminum Square Tube 801287
Paulin 1 x 36-inch Aluminum Square Tube
Everbilt 72 in. x 1 in. x 1-1/16 in. Thick Square Tube 801127