The appearance of the barn changes as the player upgrades it. Its final appearance is displayed when the barn can store at least 300 items.
The barn can initially hold 50 items. Upgrading the barn will increase its capacity:
- by 25 spaces from 50 to 1,000.
- by 50 spaces from 1,000 upwards.
Each upgrade requires the same number of bolts, planks and rolls of duct tape but the number of items requires increases by 1 with each upgrade (see the table below).
- You need to store everything but crops in the barn, including supplies. This means more than 200 different items. If you want to keep at least ten of each item you need a barn with a capacity of at least 2,000 items. However, keep some room for more, as boat orders can ask for even greater quantities of one product.
- Once your barn if full you will no longer be rewarded with supply items once you reach your magic number from either harvesting crops (fields, bushes, or trees) or feeding animals (farm animals or pets). Always make sure that your barn has available capacity before collecting from these sources to ensure that you will receive your reward.