When you’re shopping for an outdoor bench, you might find two versions of the exact same design: one made from steel and one from cast iron. The price difference can be significant, and it’s not just about the raw material. Here’s a practical breakdown of what you’ll typically pay.
For the same design, a steel outdoor bench will generally cost 15% to 30% less than its cast iron counterpart. Why? First, steel is cheaper to produce and source. A standard steel park bench might run you $200 to $500, depending on finish and thickness, while the cast iron version of the same bench could be $300 to $700 or more.
Cast iron is more expensive for three main reasons. One: the casting process is labor-intensive and requires custom molds, which drive up fabrication costs. Two: cast iron is heavier—often 30-50% heavier than steel—which increases shipping and installation expenses. Three: cast iron typically needs anti-rust coatings or powder coating to prevent corrosion, adding to the final price.
Steel, on the other hand, is easier to weld and form, allowing for faster production. It’s also lighter, so freight costs are lower. However, steel may require more frequent maintenance (like repainting) if it’s not galvanized, which can offset some upfront savings over time.
Let’s look at a real-world example. A popular curved-back park bench design in 3/16-inch steel might cost around $350. The same design in cast iron would likely be $480–$550. That’s about a 30% price gap. For commercial projects, buying 50 benches, the savings with steel could be $6,000 or more.
But don’t choose solely on cost. Cast iron feels more substantial and weathers with a classic patina, which some buyers prefer for historic districts or high-end settings. Steel is more modern and easier to repair if dented.
In short: for the same design, expect to pay 15–30% more for cast iron. Your decision should weigh upfront budget against longevity, aesthetic, and maintenance costs in your specific climate.