# How can you tell if a sugar is D/L in its chair form?

I'm having trouble determining if sugars are D/L in their chair forms. My textbook has generously provided this image of D-Glucose.

So I know that from the fischer, when I put everything into a chair view, the things on the left point up, and the things on the right point down.

However, what about the bottom $\ce{CH2OH}$ group. Which way does it point, and does it determine D/L in a ring? I'm imagining "rotating" all the groups 1 position over clockwise (does it matter if its clockwise/counterclockwise? How do you know which way to spin it?) such that the hydroxyl is now where the $\ce{CH2OH}$ was, H is on the right and $\ce{CH2OH}$ is on the left.

Does that sound right? I can vaguely remember this from high school, but it's become very clouded.