Decorative torches have a couple of different options in how you can place them based on their size.
The most common type you might think of is the post type, where the light sits on a tall pole that you drive into the ground. In this style, you might find tall torches that measure around 54 inches high. Choose a post type if you want a classic torch style that provides plenty of functional lighting.
You also have the option of finding shorter decorative torches. These may be around 20 inches tall. Choose a shorter post style decorative torch if you want to line a patio, garden or walkway with subtle accent lighting.
Tabletop pieces also fit into the decorative torch category. These are usually rounded pieces that have a wick at the top. Choose tabletop pieces if you want to add some romantic lighting and style to an outdoor table setting. These can be around 9 inches high by 7 inches wide by 7 inches deep on the larger end for a centerpiece on a table. Smaller varieties might be 6 inches high by 3 inches wide by 3 inches deep.