Two-Sided Interior Finish Wall Systems instant transformations from dreary to modern & contemporary McCain Walls Two-Sided Interior Finish Wall Panels instantly transform an area into a new space with our commercial-grade powder-coat finish panels. With a custom-designed metal hanging system, the two-sided interior finish walls can be fastened onto an existing one-sided McCain Walls system to create a permanent partition, office space, or be hung independently on existing drywall or wood paneling as well. The precut holes on the rails make it easy to install the interior wall panels in a snap. No sanding, mudding, or painting is required, making this a dust-free application. Available in a variety of beautiful, contemporary colors and textures, the two-sided interior finish walls change a dreary interior into a clean, modern space.