The fire occurred on Sunday in an apartment block in Redding, northern California. A resident of the building said that burning the spider may have been the cause of fire in the apartment.
"It was a huge wolf spider," building resident Lyndsey Wisegarver told Redding Searchlight.
Redding fire chief told BBC that they are investigating the cause of the fire and the information about the spider is a part of the probe.
The burning eight-legged creature ran onto the mattress which quickly caught fire and spread to drapes in the bedroom, Redding Searchlight reported.
No one knows if the spider survived.
Firemen managed to contain the blaze to the bedroom but residents would have to evacuate the apartment.
The unit they live in is uninhabitable, said a senior fire official.
The fire caused around $11,000 in damages and resulted in no injuries, the fire battalion chief confirmed to Redding Searchlight.
It took firefighters 20 minutes to extinguish the fire but were on scene for almost three and a half hours mopping up, said krcrtv.com. Click for more trending news