You can add Gear, Decorations, and other items to your Warehouse with the Add to Warehouse Tool.
Click on the rake and move icon in the bottom menu and select the Add to Warehouse Tool.
Then, click on the Gear, Decoration or item you wish to add to your Warehouse.
Finally, confirm your selection.
To check what’s inside your Warehouse, click on the Barn icon in the bottom menu, then select the Warehouse tab.
To place things back on your farm, click the “Use” button under the item, then place it on an empty area in your farm.