Does this work on wood floors? Will it damage the wood?

Hello Mark, Thank you for your question on the Doortex Anti-Fatigue Black Bubble Mat. This mat is suitable to lie down on hard flooring. However, we would recommend testing the mat first to ensure that this mat is compatible with your floor type. Alternatively, we would recommend placing a barrier between the mat and hard floor such as a sheet or plastic mat to protect the floor. If you have any questions or would like to know more information on the Doortex Bubble Mat, please get in touch with our customer service team and we would be happy to help. You can email us at CustomerService@FloortexLLC.com or you can call us on 615-208-9697. Thank you! Rebecca