Plasterer’s trowels are specified and measured in accordance with the size of the blade. Vital to the overall finish, the size of the blade is also very important when it comes to the efficiency of use and the speed at that you can work.
To generalise, plasterer trowels are considered small if they are 11 inches and large if they are 13 inches or longer. As you would expect, using a larger blade allows you to cover areas faster which should technically make you more efficient. However, you will need to account for your skill level and experience when choosing the right trowel size for you.
Longer blades tend to require more control and skill in order to get a perfect finish, whilst smaller blades are easier to use for novices in order to learn the skill. At Wonkee Donkee, we recommend to novices the use of a small trowel to begin, moving up to longer trowels once they have mastered their skill set to get consistent high-quality finishes.