: I am working on gathering supplies for a stitch and glue kayak and
: need to know how much resin and hardener I may need. 14 foot
: boat. This is my first attempt and want to have enough material
: but not a lot of waste. Thanks
Look for sufficient materials to mix up about a gallon. That is usually the best price for one boat.
It sounds like you won't need it all, but usually the materials are sold in quart and gallon quantities, and the gallon size is cheaper than 3 quarts. So, even if your needs are just a bit over 2 quarts (unlikely for most boats--but you aren't doing the deck) you are spending about the same and having more on hand.
Who knows. You might decide to strengthen the deck with glass after all. Or start on another boat.