Solid Iron or Tubular Steel Gate Frames

On a wide opening in Georgetown, TX, a tubular steel frame outruns a solid iron one, and the weight comparison worked out at iron gates georgetown the derek bordeaux group (with the same tape and scale used on every opening) comes out the same each time. Solid bar looks heavier because it is heavier. Whether that extra mass helps depends on the span, the posts and the ground.

How much heavier is solid iron bar?

A solid square bar frame weighs several times what a tubular steel frame of the same outline does. A twelve foot single swing built from solid bar can pass three hundred pounds before any pickets are added. The same leaf in tubing may come in near a hundred and fifty. Every pound hangs from the hinge post, so the heavier leaf asks for a larger post and a deeper footing.

Which one is stronger?

Tubing is stronger for its weight, and solid bar is stronger for its size. A hollow section resists bending along its length because the metal sits away from the center, which is why a long top rail is nearly always tubing. Solid bar wins on small parts, such as pickets and scroll work, where it resists a dent from a bumper or a tool. Most gates mix the two: a tubing frame with solid pickets and wrought iron scroll panels welded inside.

What does each one need for upkeep?

Solid bar has no inside, so rust can only start on the outside, and a good finish covers the whole job. Tubing has an inside that traps water if the ends are open. Capped ends and a small drain hole at the bottom of each post keep a tube dry. A galvanized tube resists rust from the inside out, and a powder coat over the galvanizing gives a second layer where water sits longest.

How does the choice change the posts and footings?

A heavy leaf pulls a post forward with a force that grows with its width. Limestone soil holds a drilled footing firmly, while clay in Williamson County swells and lets a post lean. A solid iron leaf on a clay lot needs a bell footing and a post of at least four inch square tubing. A lighter tubing frame may hang on a smaller post, and that saves digging.

Where does each type fit best?

• Solid bar suits short pedestrian gates and ornamental panels near Georgetown Square, where the detail is seen up close.
• Tubing suits wide driveway leaves and anything that will carry an operator.
• A cantilever gate is nearly always tubing because the tail has to stay light.
• A mixed frame suits most dual swing pairs on the larger lots in Sun City Texas.

What is the short answer?

Use tubing for the frame and solid bar for the detail, and size the posts for the weight of the leaf. A gate built that way hangs true and needs only an annual wash and a touch-up.