Is it better to buy a woodden bench or a steel bench?

We normally product and prefer steel benches, but, if our customers require woodden benches, we can easily satisfy them. We prefer steel benches because they do not require any further maintenance and further expenses, even if benches are placed on the outside. On the contrary, woodden benches need recurring maintenance because they tend to decay as time goes by, especially if exposed to weather and climatic agents.