DIMENSIONS Twin - 37.5" x 73.5" Twin Long - 37.5" x 79.5" Full - 53.5" x 73.5" Queen - 59.5" x 79.5" King - 75.5" x 39.75" each piece (2 pieces, horizontally split) CA King - 71.5" x 41.75" each piece(2 pieces, horizontally split) Split King - 37.5" x 79.5" each piece (2 pieces, vertically split) Split CA King -35.5" x 83.5" each piece (2 pieces, vertically split) WARRANTY: We design and build every foundation to last with a 25 year warranty. View Owners Manual RETURN POLICY: This product cannot be returned and the 90 night trial does not apply.