Cutting carpet sounds easy, but man, using the right knife makes it way less of a hassle-and safer. Hands down, the best is a carpet knife (sometimes called a carpet cutter). These things are made for the job: they've got a sharp, curved blade that slices through thick carpet fibers without getting snagged, and most have retractable blades so you can adjust how much sticks out.
Why not a regular utility knife? Eh, they work in a pinch, but carpet knives are way better. That curved blade glides under the carpet's surface, cutting clean through the backing and fibers without all the pushing and tugging. Plus, a lot of them have comfy handles-important when you're cutting a whole room, not just a little strip.
If you're dealing with carpet that's glued down (not loose), a hook blade (it's a type of utility knife blade) is a total game-changer. That hooked shape gets right under the carpet and slices through the adhesive, so you can lift and cut in one go. So much easier.
Do yourself a favor and skip kitchen knives or scissors. They'll get dull fast, leave ragged edges, and are way more likely to slip and cut you. Stick with a carpet knife-cheap, easy to find, and makes the whole job feel like a breeze.
