What is t11 wood?
Accordingly, why is it called T 111?
T-111 stands for Texture 111 which is what it was called when it was first made. It is 5/8" exterior grade plywood which is commonly made out of southern yellow pine (less expensive) or Douglas fir.
Just so, is t1 11 siding waterproof?
If you want a siding that is economical for an outside utility shed, then T1-11 siding can't be beaten. Because it is vulnerable to moisture and therefore can damage easily, you'll need to weatherproof it when you install it on such a building. Just make sure you caulk around windows and doors and in and around joints.
T1-11 is a type of siding made of plywood, meaning it's a material made from thin sheets of wood veneer. These are glued together to give you the look you see. It also means that this is an engineered type of wood.