G-Tape 3040 BK Flashing Tape Size:4" (65' roll) It's the smallest

It's the smallest

They sit flush with the Titan Wood Post Anchor™ base and just off the deck surface to stay drier over their lifetime

or Acorn-Flag

Black Post Cap

Available in cedar or treated pine and in various opening sizes

G-Tape 3040 BK Flashing Tape Size:4" (65' roll) It's the smallestG Tape 3040BK Flashing Tape has become a "must have" solution for deck builders across the country because of its extreme performance and simplicity. No other flashing tape performs like it. Deck joist life span is greatly increased. Why You Need It Sticks to exterior surfaces in temperatures ranging from 20F to 200F. Sticks to the toughest surfaces in the most extreme environments. Tears easily by hand. Easy to un stick from itself and re position.