Easy Way How to Find SharePoint Subsite Size

I was looking for a GOOD way to find out the size of subsites. It seems a lot of people are struggling with this. You could try SharePoint Designer. That's fun. When you ask it site properties, it will give you a different answer depending on what document libraries or lists you touched. Obviously that is not going to be reliable.

I'll cut to the chase (although I was trying to be as wordy as possible). This isn't a GOOD way, but it is a very simple way: 

• open the site in Windows Explorer
• navigate to the root of the site or subsite in question
• right click, properties
  

That may be a little resource intensive - it takes a while to open. I think it may have to open a lot more than it appears just to get you that number, but there it is in the properties window. Piece of cake.

Post Script: http://www.codeplex.com/SPUsedSpaceInfo is a console app to get a CSV listing of sites and their size. Beware that the setup is pretty heavy handed - a Dotnet 3.5 SP1 installation starts right up if you aren't there already.