Specifications include, but are not limited to: The posts shall be 8 feet in length with a diameter of not less than 3 inches and not more than 5 inches. The posts shall be white or red cedar, straight or slightly crooked, and sound with all branches hewn flush to the post. Post shall be free of large knots and structural defects. The small end shall be square cut and the large end shall be pointed. The bark need not be removed. The crook or bend of the post shall be such that a line drawn from the center of each end of the post doesn’t fall outside of the center of the post by more than the diameter of the post. Also, the crook or bend shall not be so great to interfere with the ability to adequately secure the sand fence to the posts.