How to stop him from ripping up his liter liner?

Firstly, I feel like he’s now outgrown his liter box so solutions that involve buying a brand new liter box will be helpful especially if you have links!

But yeah this is what I’ve been dealing with, he is on a puppy pad liner with paper bedding and it’s been working out for a good while now but out of nowhere every time I change is litter he shreds it up so I’m having to replace it 3-4 times a week. I have a feeling it’s because his liter box is too small for him now but if you guys have other solutions please let me know what you think the best move will be! Thanks