I love to interpret
He means that a roast can ALSO be 2" thick, it doesn't necessarily have to be thicker.
.....how am I doing?
poor tzz - he/she still doesn't know how long to cook the steak! lol
tzz - if you sear it on both sides then close the lid it should take about 6 minutes or so. Just be sure and let it rest then check for doneness. That's a guess but it's a starting point that won't cause overcooking.