In this case it's possible to line the sheet with cooking parchment,but one can also use a silicone baking mat which is a flexible sheet with a silicone coating, more non-stick than any baking sheet. Nothing sticks to it, and above all can be reused after washing.
If you intend to buy:
Get one the size of your oven for the most efficient use.
Thanks so much, I love and encourage your effort
my prob is solve..
its very useful in a student like me:)
Thank you so much