Elite Shaker Wainscoting Kit, 38" high x 8ft long, is a good choice for rooms with 8 or 9 ft ceilings. 

The kit consists of everything you need to cover eight linear feet of wall:

1 x Tall Poplar Cap, with 5/8" backset, 95"
1 x Shaker Wainscot Upper Rail, 4" x 5/8" 95"
1 x Reversible Beadboard Wainscot Lower Rail, 8 1/4" x 5/8" x 95"
1 x Modern PVC Shoe Trim, 95"
5 x 25" Shaker Stiles

All the above components can be purchased separately; however, all are packed with protective packaging and ready to go for quick shipping.  Check out out Shipping Specials. The rails and stiles are made from primed MDF, the Cap Trim is and the Shoe Trim is made from PVC for better impact and moisture resistance.