M-D Building Products 8029 Premium High Threshold with Vinyl Seal AP 118, 36 Inches, 36" L x 3-3/4" W x 1-1/8" H, Aluminum Heavy duty aluminum and vinyl for long lasting seal and durability Vinyl strips on base provide a weathertight seal against floor Seals gaps up to 1 inch high Fasteners included 3-3/4-inches wide by 1-1/8-inches high by 35 inches long