Thank you for your question, Rhonda! The spout height designates the highest point of the faucet spout from the base whereas the spout length will show how far the spout extends outward, measured from the center of the faucet base or hub to where the water will exit the spout aerator. A "deck" to "outlet" measurement would show the height from the countertop (Deck) to the faucet aerator (outlet) and the deck thickness is the recommended maximum deck or counter thickness allowed for proper installation.
Best regards, Edward
Date published: 2018-10-02