I'm a tad worried over the current state of the carpeted flooring in my room. Over the past two to three years I'd used an office chair (on casters) without a floor mat in said room and the spot where it was used left a kind of dent that has only grown bigger since I replaced the chair with a folding camping seat.
Will I be required to replace the floorboards underneath the carpet? I can't tear up the carpeting and give further details so I can only assume that the floorboards underneath buckled as indicated by the slightly expansive warping and the noticeably uneven at times creaking boards underfoot.
Thanks in advance.
edit: this floor is located on the first story of the house. To my knowledge, there is a crawlspace underneath.
edit 2: I consulted the homeowner about the floor and she'd said that the subfloor was composed of plywood boards that are at least three to four inches thick.