For a card that size, you'll need a sheet of sturdy 12" x 12" cardstock for your base. Score it at 6", and fold it in half. You'll size your layers on the front of the card accordingly, and embellish as you like. In our site tutorial
, there's also a window die cut into the front of the card, which shows off some patterned paper inside. When you're ready to assemble the tent, you'll need a strip of cardstock cut to 4" x 12". Score from the short side at 1", 2", 3", and 4", and fold along the lines to create a W shape. Attach that to the inside of the card to enable it to stand up.