Pinit BACKINGS for Jumbo Lobby Card/ LARGE Tabloid. 14 x 17" .0625" thick E-flute Corrugated Cardboard. White both sides. Short-term Storage. SKU: KTABL625 (0)No Reviews yet Add to Shopping Cart Details It is a popular choice for a backing board because it is thin, rigid and economical. Details Back DetailsIt is a popular choice for a backing board because it is thin, rigid and economical. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review