Frames are 100% welded aluminum angle with 10" wide planks. The first row has a seat height of 18". Foot planks are double wide for increased comfort.. 5-year limited warranty. Three 27' long rows. Seats 54. 27'L x 30"H x 60"D. 476 lbs. QUICK SHIP! (Picture is of 3-row, 15'L, single foot plank bleachers.) Call our customer service to order colored seat planks (red, royal blue, navy blue, or forest green); ALSO QUICK SHIP!