i want to get the size 18 x 24, but i am worried that it is 18 tall and 24 wide. that would be bad.

it has a tree bark pattern on it and i need the bark to position like a real tree, so i need to know if it is 24 tall and 18 wide-that is what i need, but i can't figure out on the package which one it is. bass anyone ordered this product?