U-CHANNEL SIGN POST, 8’L, 1.12 LBS./FT., GALVANIZED POST, HOLES 30″ DOWN POST U-CHANNEL SIGN POSTS. MANUFACTURED FROM 100% RECYCLED STEEL. RIB-BAK® HIGH CARBON NEW BILLET SIGN POSTS ARE AS MUCH AS 25% STRONGER THAN OTHER U-CHANNEL POSTS. ENGINEERED WITH A PATENTED, RIBBED BACK DESIGN THAT ALLOWS SIGN MOUNTING ON BOTH THE FRONT AND BACK OF THE POST. HOLES PUNCHED 30″ DOWN THE POST. NCHRP 350 COMPLIANT. FAST, EASY INSTALLATION USING CONVENTIONAL TOOLS.