Similarly if you have specific needs for your furniture. For example you want to build a cabinet in your garden area. Especially you wouldn’t want it to damage in the rains or harsh sunlight. So there is different type of plywood made for exterior uses. You would easily be able to find and buy exterior plywood online.
Even in interior furniture you would need a different kind of plywood for each part of the furniture which you make. It would require different durability, finish and usage criteria. There are parts of the furniture which are merely just for show not for much of usage. But then there is furniture like doors which need to have durability and resistance to force and also weather change during monsoon. For that you can buy plywood doors online india which are specifically made to suit Indian environments.
Plywood buying would require a lot of research and planning. Only thing to keep in mind would be to buy plywood looking at the requirements of the furniture usage, durability and look and finish of the product.