As WorkGuru uses the perpetual inventory method and logs all stock movements that occur at a specific warehouse, there is no ability to delete the warehouse once created.

To retail this information, you can mark the Warehouse as InActive to remove from the warehouse list on the relevant transactions. 

IMPORTANT - Before marking the warehouse as in-active, ensure you have transferred or stock adjusted all stock on hand out of that location.

Open the warehouse's detail page by clicking on the warehouse Name from the warehouse dashboard.

Click Edit Warehouse.

Deselect the IsActive checkbox

Click Save to save the changes.  The warehouse is now no longer available to purchases, projects and production jobs.  Note:  If the warehouse did not have it's stock on hand transferred or adjusted out before being made inactive, will still display those counts and value on relevant reports.  If is the case, enable the warehouse, move the stock out and disable it.