Joining the SKLA is a 2 step process, the first is for Membership with SKLA and the second is for access to the site. (You will only have to do this once)
You will need to select the number of doors you have below. 1 – 60 or 61 to 120 or if you're a service member.
On the left you will see the number of suits, use the drop down menu to select the number.