Yep. Our lawn was small enough to use an offcut (I don't remember the supplier, sorry).
The process is to dig down about 15cm across the entire area the "lawn" will occupy. Put in edging boards around the space. Fill the area with sand, and flatten with a whacker (we hired one). Lay a weedproof membrane. Lay the artificial turf by nailing it to the edging boards with 4" nails. It took us about a weekend to do, as I recall, and the hardest bit was getting the sodding whacker in and out of the car. Joking aside, you'll generate a lot of waste topsoil digging down far enough for the sand base, so think about where all that will go.
The upsides were that it looked surprisingly good, and of course, it looked surprisingly good all year 'round. The downside was that it was, essentially, like having a big, outdoor carpet. If anything pees on it, that smell can linger for a while, especially in Summer. I'd not recommend it if you have a dog (unless you take Fido for his ablutions elsewhere) or cats, (if they like to pee on lawns). If you get regular fox visits, I'd be circumspect too.
We've relaid turf after 3 or so years of the artificial stuff.