We often get asked ‘how do I mark my snooker table?’, and to be more exact, how to mark the ‘D’.
While we’re not table fitters and would always recommend that our customers seek out a professional when it comes to setting up and maintaining a snooker table, we understand that the handier of our customers might want to give it a go themselves. 
There is some excellent content online on how properly mark a snooker table. We recommend reading Spotting and Lining Your Billiard Table by F G Bradleys. They are a table company based in Canada and offer a very easy-to-read guide on how to mark your snooker table and a downloadable PDF to give you the exact measurements needed for varying table sizes.
The PDF with the measurements is about halfway down the page.

Table essentials