Lockable Corkboards on sale now! Nationwide delivery, product helpline and easy on line ordering. Often referred to as tamperproof cork boards, these internal display boards come with either one or two lockable doors depending on the size of the unit. We have a truly bespoke offering and can make your tamperproof corkboards in any size. For further information or to get a quote call our helpline number Mon-Friday, 9-5 or email us out of hours from the contact us page.