The most common reference to the dimensions of a set of goalie pads is the length, which is derived from combining measurements from three portions of the leg. The goal of this exercise is to find the right fit for the goalie when in stance, so you might need someone to help.
To find your size, do the following;
Using a tape measure, place one end on inside of your foot at the ankle on the bony part that protrudes, and measure to the center of the knee cap (while the knees are slightly bent). Add this to the measurement taken from the center of the knee cap to mid thigh, where the thigh pad ends, or rather, where you want it to end.
A new term being thrown around is the “Limiting Distance Size”, which refers to the distance between the ice surface and the start of the goalie pad. It is a term used in an effort to begin sizing standards and at the moment, doesn’t interfere with any manufacturers. Professional sizing restrictions keep the total length of the pads down to 38″. Currently there are no sizing standards for manufacturers for goalie pads, however all the elements of the pad must exist to be playable, and must occur within the leg length starting at ice level, and as such, most pads are relatively close to each other.
The professional proposed measurement is as follows;
Measurement #1: The floor to the center of the knee.
Measurement #2: 55% of the knee to pelvis.
Measurement #3: 4 inches for the skates.
The length of your pads should be the combination of #1 and #2, and the Limiting Distance is this number + #3. This final number is what is proposed at the professional level of determining whether or not the pads meet the proposed sizing limitations.
Junior sizes start around 26″ and go to 30″ which is the beginning of the senior measurements.