Track (10 foot length) for Rigid Sign LettersTRADE ORDERS. MOST ORDERS for a single 4 x 10 foot sign face require one top track, three center track and one bottom track per side of a 4 x 10 foot sign face. To order, select the top or center or bottom track, then change the quantity and click "add to cart". Repeat for the other lengths desired. You may change the quantity of each track length in the checkout page. Minimum order on track is for 6 pieces. Orders for fewer than 6 pieces may have a