A garage with an office on a partially finished second floor was destroyed by a fire Friday night in New Gloucester, a fire official said.

The blaze started as a woods fire and spread to the building on Gloucester Hill Road, New Gloucester Fire Capt. Scott Doyle said. It was first reported at 5:30 p.m. and took firefighters more than two hours to put out, he said.

Doyle said fighting the fire was difficult because of a lack of access to water at the scene and because the metal roof of the structure partially collapsed.

He said no one was injured and the cause of the fire is unknown.

The 25-foot by 60-foot building was a total loss, Doyle said, estimating the value of the structure at $150,000.