Blend-material 18x30 mud flaps with a shallow groove face, built at 1/4 in. thick for work truck and fleet use. The 18 in. by 30 in. panel hangs well below the wheel to hold back stones, slush and spray, and the 1/4 in. section carries more body than a thin .150 in. flap of the same size. Nominal size: 18 in. wide x 30 in. high Material thickness: 1/4 in. Blend material with a shallow groove face Full 30 in. drop for units that need more coverage behind the wheel Confirm ground clearance and hanger bolt spacing before ordering Sizes are listed width by height, so measure the top edge of the flap you are removing. The 30 in. drop hangs low, so check ground clearance when the unit is loaded and over driveway crests. Confirm the hanger bar width and bolt hole spacing suit an 18 in. flap, and order the quantity needed for a matched set.