Flames destroyed a 3,500-square-foot carpentry workshop and garage off Liberty Road on Monday afternoon, and came close to ripping through an attached two-story home.
No one was injured in the blaze, which took place in a rural neighborhood east of Highway 99 near Bruella Road.
The fire was reported just before 4 p.m., and controlled about 30 minutes later.
"The area of origin, you can hardly tell," said Liberty Fire District Chief Stan Seifert, as a half-dozen firefighters doused hot spots in the gutted building.
"It's just way too hot to get close to it."
He said the cause of the fire was unknown, but that arson was unlikely.
The home's owner, Ed Eriksen, arrived about 20 minutes after the blaze was reported. He quietly surveyed the smoky scene, including his wood-framed home, which suffered heat damage to some windows and minor burns to its exterior.
Eriksen declined to comment about the fire.
Seifert estimated the loss at more than $100,000.
Explosions were reported during the fire, though Seifert said it was unclear what caused them.
It could have been something as simple as a spray can.
"A paint can makes a pretty good pop," he said.
As the sun set Monday evening, a small group of neighbors watched firefighters douse the blaze from afar.
Melted garbage bins sat to the side of the house, overflowing with recycled aluminum cans.
A charred stationary bike, barbecue, a tractor and dozens of other unrecognizable items littered the site.