A SharePoint document library is a location in SharePoint where files are stored, organised, and shared. Unlike a regular folder on a file server, a document library supports versioning, metadata columns, permissions at the item level, check-in/check-out, and integration with other Microsoft 365 tools. It is the primary storage unit for team and project documents in Microsoft 365 — and the main target for SharePoint automation and monday.com integration workflows.
Document library vs. SharePoint list
SharePoint has two main storage structures: document libraries and lists. The distinction matters because they behave differently and have different limits.
| Document library | SharePoint list | |
|---|---|---|
| Primary content | Files (Word, PDF, Excel, etc.) | Structured data (rows and columns) |
| Think of it as | A folder structure with superpowers | A database table or spreadsheet |
| Versioning | Full version history per file | Version history per list item |
| Item limit | 30 million items | 30 million items |
| View threshold | 5,000 items per view | 5,000 items per view |
The 5,000-item view threshold is one of the most frequently encountered SharePoint document library limits — see the complete guide to SharePoint large list limits for how to work around it.
Key features of a document library
Version history
Every time a file is saved or checked in, SharePoint creates a new version. Previous versions can be restored at any time. Major versions (1.0, 2.0) and minor versions (1.1, 1.2) can both be tracked depending on library settings. Version history is the audit trail for controlled documents.
Metadata columns
Each file in a library can have additional columns: project name, status, document type, owner, expiry date. These columns enable filtering, sorting, and automation triggers. A document library with well-defined metadata columns becomes a structured document management system, not just a folder of files.
Permissions
Permissions can be set at the library level (everyone with access to the site can read all files), or broken at the folder or file level for specific access requirements. See SharePoint permissions explained for a full breakdown.
Co-authoring
Multiple people can edit a Word or Excel file stored in a document library simultaneously, with changes synced in real time through Microsoft 365. No file locking, no "who has the file open" problem.
Sync to desktop
Document libraries can be synced to Windows Explorer or Mac Finder via the OneDrive sync client. Synced files are available offline and changes sync automatically when back online. See OneDrive for Business vs SharePoint for how synced SharePoint libraries relate to personal OneDrive storage.
Document libraries in monday.com
The Microsoft 365 SharePoint integration for monday.com connects monday.com directly to SharePoint document libraries. From inside a monday.com board item, team members can browse, open, and edit files in a library without navigating to SharePoint. Automations can create folders within a library, generate documents from templates stored there, and move or copy files between libraries when board status changes.
All access is governed by SharePoint permissions — the integration uses each user's own Microsoft 365 credentials, so team members can only see files in a library they're already permitted to access.
Document library templates
SharePoint includes several built-in library templates for common use cases:
- Document library — general purpose; most teams use this for all files
- Form library — stores InfoPath or Power Apps forms
- Picture library — optimised for images with thumbnail views
- Wiki page library — stores SharePoint wiki pages
For most teams, the standard document library is the right choice. Form and picture libraries are specialised use cases.
→ Microsoft 365 SharePoint integration for monday.com
→ SharePoint document library limits: the complete list
→ SharePoint permissions explained
→ What is SharePoint automation?
