Should I have the gaps between the boards filled?
One is to mix resin with wood dust into a paste, this is then pushed into the gaps between the floorboards and left before sanding flush. The second method is to glue wood slivers made up from reclaimed pine wood into the gaps between the floorboards and the sand flush.
We would recommend filling the gaps in ground floor rooms and hallways as there could be a cold draft. In kitchens and bathrooms gap filling is recommended as a protection against spillage. We do not recommend wood fillers that are available in high street shops as they tend to shrink and fall through or get sucked out with the vacuum cleaner.