Gate Flat Top 1” Rail 16G5/8”Picket 18G-36"x48” This low partition solution is designed to complement our other flat tops and may be used as a panel or railing. 100% galvanized inside and out and powder coated a high-gloss black flat top low partition gate. It measures 36”x48” with 16gauge 1” rail and 18gauge 5/8” pickets. Pickets have 3-7/8” spaces between them for added strength and security. Use for single- or double-hung gate entrances.