We generally recommend a 5’ signpost for our sign bases. This cuts down on the wind shear that might tip the sign base over in higher wind areas. If you require a taller post, please order our 75-pound sign base weight that attaches to the bottom of our 72-pound sign base. This added sign base weight will enable you to go up to the MUTCD height of 7’ to 8’, use a metal post for this application as plastic may bend in the wind. Please check with your local sign ordinances for the regulations and or sign code requirements.