A mat can protect against sweat and slippage

The Model D RowErg® supporting legs have black rubber feets as standard. Personally I think a mat is most needed to protect your flooring or carpets against dripping sweat during very intensive rowing. There are no vibrations from the rowing machine if it is working properly.

Normally you do not need a mat under your indoor rower ( paid link ). A mat can eliminate slippage if this problem occur during extreme intensive rowing.