Bros, lots of good designs for the fire baskets have been posted. The 24 inch clearance is from the bottom of the fire basket to the bottom of the grate. However you build the basket...still measure the bottom of the fire basket. Just my understanding of the UDS build and knowing that works.
my avatar swiped fatties from the plate....look how sorry he is.
NB Bandera with mods
Weber 22 .5" x 2, 26.75" x 1
UDS x 3
Created "The Great Spam Revelation of 2011."