One face of an H950 (36u) rack. 6u (0.40625 inches) >Value 3u, (0.21875" tall) >Value >Value 15u Device (TU10) >Value 18u device (8/i, FPP12A, etc.) >Value <b>EAGLE Design Rules</b> <p> The default Design Rules have been set to cover a wide range of applications. Your particular design may have different requirements, so please make the necessary adjustments and save your customized design rules under a new name.