It may be due to one of a few factors. For example, if it's tough to stretch, then chances are the dough is not at the right temp. Pizza dough needs to be at room temperature to stretch properly.

Proofing the dough sufficiently lets the gluten relax so that it will stretch easily into your desired pizza shape without ... hands and work surface with a thin layer of olive oil, and press ...

Making your own pizza ... dough feels tight or hard. Turn the dough out onto a clean surface and knead for 10 minutes, or until it is smooth and elastic. Cut off a small piece of the dough and ...