When looking for take away packaging, there are some things to think about like:
The size of the bag you'll need
This is very dependent on what goods you've got inside. Is the box inside wide and short or thin and tall?
For most take aways we've found wide and short being the most common used as this allows for putting sauces at the base rather than on top and causing annoying spillages that aren't great for the food or your customer.