I live in a house built in 1926 which has standard wooden floorboards (about 119mm width) that are laid on the wooden joists and then nailed in place. I need to replace two of these floorboards as the previous owner cut a hole across them to facilitate a vent for a (now removed) gas fire. The problem I'm finding is that all "official" floorboards sold by retailers are tongue and groove rather than the traditional type that just falls into place. Can anyone recommend any wood types that I can use? I know softwood is not recommended but I'm struggling to find any ordinary shops that sell anything good. https://www.wickes.co.uk/Wickes-Redwood-PSE-Timber---20-5mm-x-119mm-x-2-4m/p/9000036459 would fit perfectly but I'm not sure it's the right thing.