Go to a Sharepoint site in browser
Select View All Site Contents from site action menu
Click Create link from the top
Right click on list or library you want and click properties
In properties dialog you will find the ID at the end of the URL
For example in the following URL, 101 is the ID for Document Library
http://moss:80/Documents/_layouts/new.aspx?FeatureId={00bfea71-e717-4e80-aa17-d0c71b360101}&ListTemplate=101
Following is a list of common template IDs for your reference.
| Template | ID |
| GenericList | 100 |
| DocumentLibrary | 101 |
| Survey | 102 |
| Links | 103 |
| Announcements | 104 |
| Contacts | 105 |
| Events | 106 |
| Tasks | 107 |
| DiscussionBoard | 108 |
| PictureLibrary | 109 |
| DataSources | 110 |
| WebTemplateCatalog | 111 |
| UserInformation | 112 |
| WebPartCatalog | 113 |
| ListTemplateCatalog | 114 |
| XMLForm | 115 |
| MasterPageCatalog | 116 |
| NoCodeWorkflows | 117 |
| WorkflowProcess | 118 |
| WebPageLibrary | 119 |
| CustomGrid | 120 |
| DataConnectionLibrary | 130 |
| WorkflowHistory | 140 |
| GanttTasks | 150 |
| Meetings | 200 |
| Agenda | 201 |
| MeetingUser | 202 |
| Decision | 204 |
| MeetingObjective | 207 |
| TextBox | 210 |
| ThingsToBring | 211 |
| HomePageLibrary | 212 |
| Posts | 301 |
| Comments | 302 |
| Categories | 303 |
| IssueTracking | 1100 |
| AdminTasks | 1200 |
