Capitan Miniatures announce you can download the Close Quarters boards in a full size image (jpg):
From their announcement:
Download them at http://www.capitan-games.com/close-quarters/ and print in full size, we recommend to print in “blackout” canvas or hard cardboard, at your local copy store.
Remember that we have a complete range of 18mm miniatures to use with our game, you can find them at our online shop:
In our Shop we offer you two types of crew packs, one for a ships of the line and another for frigates, with all the miniatures and bases that you need to start playing.