What is the Standard Tennis Court Net Height?

Hello everyone.

I’m in the process of setting up a tennis court and am unsure about the correct net height. I’ve seen varying numbers online and want to make sure I get it right. Can anyone confirm the standard tennis court net height for both singles and doubles play?

I understand the net is slightly lower in the center compared to the sides, but I’d love some clarification on the exact measurements. Any recommendations for maintaining proper tension as well?

Thanks for the help, looking forward to getting it set up properly!