Outdoor benches in Black Locust.

The sun and sea are brutal here in San Diego. Teak is the classic choice but it is not always ecologically sourced and very expensive.

Black Locust, from the Eastern USA, is an affordable and sustainable domestic alternative that performs exceptionally well outdoors.

These benches are finished in a proprietary oil from @RobiDecking

Any kind of film finish would deteriorate quickly in the the elements. This oil finish will weather to a dull grey but can easily be cleaned and restored with a modest amount of maintenance.