Damage repair from house rewire

You will always run a bit of a risk that whatever you match in will be different to your floor - it will have aged/worn differently over the years. I’d call around reclaims yards to find reclaimed pine boards (be prepared, they won’t be cheap). When I replace damaged flooring I stitch it in so that joins aren’t next to each other. In terms of filling I don’t tend to fill the ‘gaps’ between the boards (boards expand and contract across their grain so further gaps may appear over time which will negate the work you will have done). They aren’t usually gaps all the way through as they are likely to be tongue and groove boards. If you do decide to fill them then slivers are a good idea. PVA them in place and then sand them with the rest of the floor. Gaps across the boards can be filled successfully. I use a lecol resin filler mixed with the cleaner/finer sawdust created from sanding the floor. There are other fillers but I would avoid things like plastic wood or using PVA with sawdust (it will take a long time to dry). You will need to sand to a fine finish with no scratches if you are considering dying the floor as scratches will be much more evident once the colour is applied. Hope this helps

You can sertenly replace the cut floor boards as well, I would cheak first around if you could but a used floor boards from eBay or some other places, it's worth it checking the conditions of the current floor try to sand it in a small area and compare with the new one see it matches, Am sure you will find something that would matches, best wishes Ervin

It's hard to match them with new boards and reclaimed boards are often full if holes in the wrong place and expensive. If you can try and take up boards from another room where you are putting down laminate or carpets and use them. Replacement new boards won't show there.