To upgrade your Barn and increase its capacity, you’ll need Nails, Padlocks, Shovels, and Tin.

 

 

 

To upgrade your Crop Silo and increase its capacity, you’ll need Nails, Padlocks, Shovels, and Coins.

 

 

To upgrade your Seaway Storehouse and increase its capacity, you’ll need Rope, Hook, and Anchor.