LH airbus A343 widebody aircraft

LH A343, originally uploaded by Kevin Boydston.

This is an Airbus 340-300 model aircraft, a widebody aircraft typically configured with 2 aisles, and seating 8 across in economy in a 2+4+2 configuration. As an early reply stated, actual configuration depends on the airline's preferences. You can see seat maps and dimensions for some airlines at Seat Guru.