Find the right custom bass drum head size in seconds, then jump straight into the designer with your size already set.
Custom bass drum heads are sized by the drum's diameter, not the depth. The head size matches the number you already know your kick by, so a 22" bass drum takes a 22" head. If you are not sure, measure the front head straight across from the inside of one rim to the inside of the other, through the center, and round to the nearest inch.
Outfitting a marching line instead? Use the marching bass drum head builder, which handles 14" up to 32".