Twenty years ago, my employee Lonnie Akers came up with the idea of using metal T-bracing to prevent a deck floor from racking. First, we snap a chalkline across the tops of the joists where we want the brace to be. Next, we cut a sawkerf in the tops of the joists equal in depth to the leg of the T-bracing. Then we hammer the bracing into the groove and nail it down. It works great, it’s cheap, and it’s barely visible after the deck flooring is installed.
Tom Taylor, Macomb, IL