What is the max legal size goalies pads, use in the NHL?

Question

How many inches 37, 38 by 11 or 12 inches?

Answer 1

11 inches wide, 38 inches in height max.

Changes could be coming...stay tuned.

Answer 2

11.2 Leg Guards – The leg guards worn by goalkeepers shall not exceed

eleven inches (11'') in extreme width when on the leg of the player.

The maximum length from bottom mid-point to top mid-point of the

pad is not to exceed thirty-eight inches (38''). The minimum length of

the boot of the pad is to be no less than seven inches (7''). The boot

channel of the goal pad must be flat or concave in appearance. No

attachments such as plastic puck foils are permitted.

Answer 3

both.  They can only be 38 inches high, by 11 inches wide.  Although it's looking like that'll change soon.