The Reno mattress is a structure made of hexagonal double twisted wire mesh. Reno mattresses are filled with stones at the project site to form flexible and permeable, monolithic structures such as river bank protection and channel linings for erosion control. The steel wire used to manufacture the mattress is heavily zinc-coated soft temper steel. The standard combinations of mesh is shown in Table. In order to reinforce the structure, all mesh panel edges are used with a wire having a greater diameter. Reno mattresses are uniformely  divided into partitioned cells by internal diaphragms.

All sizes and dimensions are nominal. Tolerances of ± 3% of the width, length, and ±2.5 cm of the height shall be permitted