How to Repair a Sticking Door

1. Check hinges
2. Check where it sticks
3. Consider sanding with a sand block (rough grade sand paper)

Related:

How to Fix a Sticking Door - YouTube http://bit.ly/14HKE3Y
Repairing a Sticky Door - Lowes http://low.es/14HKDNr
How To Fix a Door That Sticks - YouTube http://bit.ly/14HKIk4