Real steel
Real steel means the window or door frame is made of steel profiles, usually galvanized and powder coated, with insulating bars in the middle when it is thermally broken. It is a different product from steel-look aluminum, which is an aluminum frame drawn to resemble steel.
Real steel is the original material behind the factory-window look: narrow steel sections, crisp glass lines and frames strong enough for very large panes. Today's residential versions are not the single-pane industrial windows of the past. They are thermally broken steel systems, with insulating bars between the inside and outside steel so the frame does not carry cold straight through.
Real steel vs steel-look aluminum
| Item | Real steel | Steel-look aluminum |
|---|---|---|
| Frame material | Steel profiles | Thermally broken aluminum |
| Weight | Heavier, which affects handling and anchoring | Lighter |
| Finish | Coating has to stay intact; touch-up matters | Powder coat, forgiving and low maintenance |
| How I quote it | From your drawings | Estimator, then drawings |
The two are not interchangeable names. I use "real steel" only for steel systems and "steel-look" only for aluminum. If you are weighing the two, the steel-look aluminum vs real steel guide goes through the trade-offs, and the real steel windows and doors page shows the systems I quote, with sections and weights from quoted configurations.
Related terms: thermally broken steel, thermal break and Janisol.
Common questions
- Is real steel the same as steel-look aluminum?
- No. Real steel is a steel frame. Steel-look aluminum is a thermally broken aluminum frame with slim sections, putty-line stops and simulated divided lites that copy the appearance. They overlap on looks and differ on material, weight, thermal numbers, finish care and price.
- Can I price real steel in the estimator?
- No. I quote real steel from your drawings, one project at a time. The estimator does not price it.