Benches

Benches are long seats designed to seat multiple people simultaneously. The most basic bench is one without a back, but common benches seen in public areas and parks usually have arm and back rests. Benches are versatile pieces of furniture and may be used in both outdoor or indoor environments. Originally made of wood, benches today are made from a range of materials that include metal, concrete, stone, and plastics.
The height of a bench is typically between 18 and 20 inches (46-51 cm). Although this is the average range, the height of a bench is dependent on its use.
Benches can have a depth anywhere from 15-20 inches (38-51 cm), although the typical bench used for dining is considered to be around 17 ½ inches (44 cm). A depth (or width) past 20 inches (51 cm) will not be as comfortable for the average person to sit on.
On average, bench length can range from 42 and 60 inches (107-152 cm). A bench within the 42 to 50 inch (127 cm) range is able to seat two people.