Carpet or large off cut (Upton CH49)

I need to put a carpet on our wooden floor as my dog is slipping and falling due to a medical condition.
I want to make it safer for her.
We need it quite long (approx 4m x 2m ) but if it's smaller I'd appreciate it. I know it's a big ask but people do take up good carpets and buy new. Our carpets at home are dark beige /mushroom but if it's the right size and clean then I'd appreciate having a look. 🤞. Thanks.