The modular panel RF shielding construction technique is the most widely used shielding system worldwide. This design has been successfully installed in thousands of locations around the world. The system's modular design is extremely versatile and is available in a wide range of standard and custom sizes and configurations, typically between 2.4x2.4x2.4 m and 35x20x15 m. The Panabolt modular panel RF shielding system (pictured above) offers a number of important advantages: The modular panel construction can be dismantled, relocated to another area and re-erected or changed in size and configuration. Unlike some other modular systems the panels and framing sections can be cut to special dimensions at the installation site. The solid, rigid panel construction is suitable for the direct attachment of services and other materials such as ferrite and RF pyramidal absorbers (also known as radar absorber material - RAM), electrical distribution and lighting without the need for substantial additional linings etc. The Panabolt system includes a high quality, heavy duty, durable, recessed contact mechanism (RCM) door, which is a major component of a shielded room. The RF contacts are concealed to avoid damage and can be removed and replaced if necessary without the need for special tools or soldering. The modular panel construction consists of galvanised steel sheets laminated to 19mm thick solid core material. Panels are mechanically joined together with 3 mm thick framing members which are roll formed into shapes that provide uniform clamping pressure along panel edges without the use of weld nut, serrations or gaskets.