Sign Posts and Fittings for the Trade and Public. Whether you are a member of the general public or have your own sign business, we have the right coloured and galvanised sign posts for you. We stock 76 mm Aluminium posts in Gray, White, and Black powder coated finish. Galvanized steel are often used for road side highway signage. We can cut your sign poles to length for you for collection or TNT delivery. At cestrian sign we also stock all the sign post you will require for your the fitting of you new sign to a post or railing. Call our sales team for more details. sales@cestriansigns.co.uk