We took the carpet out of our bedroom about 6 months ago and found floorboards of varying widths between 6" and 12". They were very very dark but after walking on them some are showing up lighter where the dirt [wax?] has come off. There are some quite wide gaps between the boards so I wondered if lifting them all and relaying them closer together would be an option. Would this be a joiners job? we are not great at this type of thing. Is it common to have a wide variety of widths of board? Our house is about 250 years old [poss older] and was original used for animals [some would say it still is] and converted to housing at some point in the 1800s?