Category Cable Skew Rates with HDBaseT signals

The Propagation Delay and Delay Skew are components of the TIA-568-C.2 standard.  The HDBaseT standards reference this TIA standard.  So, the short answers for all cable categories supported by HDBaseT (5e, 6 and 6A) are:

Channel Propagation Delay – 555ns Max

Channel Delay Skew – 50ns Max.