Directory Hog can scan a drive or folder of your choice and list the total size of each folder and sub-folder in a list. Project has been abandoned.
The list also shows the largest file size found as well as the number of files found in the folders. You can sort the columns in this list. To view the contents of a folder, just double-click the folder in the list.
Other options are the ability to print the list to a selected printer and the maximum folder size to ignore when scanning. By default, DirHog will ignore all folders less than 10MB. You can change this option by clicking on the Options button.
Additionally, you can instruct Directory Hog to ignore a folder or file in future scans. To do so, right-click the row and select either "Ignore this folder" or "Ignore this file." When ignoring a file, you can choose either the file in the specific folder only or just the filename in any drive/folder. Scan the drive again to refresh the list. To manage the ignored folders/files list, click on the Options button.