While our ready-to-install bookshelf doors come in fixed sizes, you can add optional features like cupboards and extra shelving. If you’re after something more custom or have a unique idea in mind, we also offer the InvisiDoor Hinge Kit on it's own - perfect for DIY enthusiasts, designers, or builders looking to craft a one-of-a-kind concealed entry. With the right tools and a little creativity, you can bring your vision to life.