Driveway Gate Materials and Finishes: Steel, Iron, Aluminum, Wood

Material sets your price floor, your maintenance calendar and how long the gate lasts. The finish decides whether it still looks new in year ten. Both are worth deciding on facts, not on looks alone.

The five materials side by side

The aluminum vs. steel vs. wrought iron comparison covers weight, rust, upkeep, lifespan and price, with wood and composite included for reference.

Why steel suits most driveways

Steel is hard to cut, heavy enough not to flap in wind, and it does not sag on openings past 20 feet the way aluminum can. A modern steel gate is welded square or rectangular tube with a powder coat. That coat is the one thing steel asks of you: powder-coated steel only rusts where the coating is broken. Choose steel when security matters, when the site is windy or wide, or when you want clean lines and lasting color.

Most gates sold as wrought iron today are mild steel worked into traditional scrolls and finials. True wrought iron is rare. The look suits a historic or formal home, but it costs the most, and traditional finishes need repainting every 2 to 3 years. A steel gate in a finial style with a powder coat gets most of the way there with less upkeep.

When another material fits better

• Within a few miles of the ocean: aluminum, which does not rust, or steel with a twice-yearly inspection and a strict touch-up habit.
• A solo install with no helper: aluminum, since a 12-foot aluminum panel is a one-person lift. With a helper, our steel gates are built for a two-person install with no crane.
• Privacy or a ranch look: wood boards on a steel frame, or composite if you never want to seal anything.

For the wood look, our option is ironwood: a dense hardwood, oiled rather than painted, in vertical or horizontal boards on the steel frame. The frame carries the load and the wood carries the look.

Maintenance by material

The driveway gate maintenance schedule comes down to ten minutes a month and an hour a year. Monthly, run the gate and listen, test the photo eye and the safety edge, and check the hinges, the bottom rail and the ground gap. Yearly, check the welds and posts, mark every chip with tape, wash the gate, lubricate hinges and rollers, tighten bolts, and test the manual release and the battery.

Touching up powder coat

1. Clean the chip with a degreaser and let it dry.
2. Remove rust with fine sandpaper or a wire brush, down to bright metal, and feather the edge of the coating.
3. Prime with one thin coat of cold-galvanizing (zinc-rich) primer.
4. Color with two thin coats of matched enamel.
5. Let it cure for the time on the can before the gate gets wet.

Near the coast, inspect twice a year and rinse off the salt two or three times a year. On a white gate, buy the matched touch-up when you order so the color is right.

Finish and color

Powder coat is a dry powder applied electrostatically and baked into a hard skin, thicker and tougher than paint. Ours goes over an anti-gassing primer, which stops gases escaping from the welded steel during baking and leaving pinholes. Our gates come in satin black or white, with custom colors on request. Black suits nearly every house; white reads clean on a light house with white trim. Match the gate to the trim or the garage door, not the siding, and it will look intentional.