The T-12 is 1-1/8” thick and comes in standard heights of 7’ and 8’, with the standard headroom requirement of 12”, however low headroom kits are available for special applications.
T-12 Number of Sections
T-16 Door Size Chart
The T-16 is 1-3/4″ thick and comes in standard heights of 6′ through 10′. Door heights of 10’H & over require 2″ commercial hardware. Headroom requirements may increase with Door Operators.