This is both cheaper and durable.

2. Steps — necessarily wooden, and not made of whole wood, but consisting of pieces. This is both cheaper and durable. You can not even varnish them — they already look very beautiful. Although varnishing, of course, will extend the service life of them, and therefore do not delay it. Wood, as experts advise, should be beech, and it is the core. Durable — like oak, beautiful — like ash. And economical.