I nside Panels Measurements: Basic White cs inside panel 5 1/8" x 3 7/8". Calypso Coral cs strips - two 1/2" x 4" strips. Basic White cs inside panel - 3 7/8" x 5 1/8". Cajun Craze cs strips - two 1/2" x 5 1/4" strips. cs = cardstock