Amazon.com: Metaltech M-PEP7000AL Telescopic Aluminum Plank Board, 6 to 9-ft. Adjustable Work Platform for Step Ladders and Sawhorses, Work Plank, Ladder Accessory, and Scaffold Tool for Home Improvement : Metaltech: Everything Else
Werner 8 ft. - 13 ft. x 14 in. Telescoping Aluminum Extension Plank with 250 lb. Load Capacity PA208 - The Home Depot
Little Giant Ladder Systems 10069, Telescoping Plank, 6' - 9', Aluminum - Ladder Accessories - Amazon.com