Titan Block only services the Florida stores except for the panhandle area. Thank you.
About a half inch about the size of a rebar.
Thank you for your recent inquiry with The Home Depot, Pam. We do not carry and 8"x8" cap, but do carry a wide variety of others: http://www.homedepot.com/s/concrete%2520cap?NCNI-5 We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.