The center roof of a Monitor Barn is raised from the main roof, which is then is supported by the addition of knee walls.

Monitor Barns have a unique look that is extremely popular, but what are the advantages?


  • Unique look
  • While the pitch of the roof remains low, loft space becomes available
  • The center roof portion can be pre-assembled
  • Windows can be installed without the use of dormers

The following Monitor Barns were built by Spane Buildings in Washington State. They have been Barn Builders since 1945. For more details, visit