VeriShield™ modules are dry stacked block that can be easily configured into any size, shape or type of radiation therapy room. Unique sine-wave shapes eliminate straight line seams and provide superior neutron, photon and particle attenuation at the joints. Blocks are available in two densities - 250 and 300 lbs./cu.ft. (4 and 5 g/cu.cm.). Individual shielding requirements are met by tailoring the density and number of layers of VeriShield as needed. Shielding is easily installed in even the most confined work site, and can be upgraded, reconfigured or removed if needed. Compared to concrete, rooms constructed with VeriShield require less than half the space, and are completed in weeks instead of months. Modules are easily transported to the worksite and can be stored indoors or out, as they are unaffected by weather. Their compact size allows for convenient delivery with fast and easy installation without disrupting surrounding services. No other shielding method provides a comparable blend of performance, convenience and affordability.