There are a fair few buildings which fulfill the role of 'makers'. Using the equipment inside these buildings will allow you to convert your products into other goods. Several of these goods have multiple steps, meaning a mass amount of items obtainable within this game. Note that crafting clothing, blueprints, and cooked dishes are located in a separate section (Crafting) as they all require purchase of additional 'instructions' to make. These buildings will need to be placed on your farm to be used and you can have multiples up at the same time. Inside each building is a storage box that gives you access to your fridge, your storage, and your toolbox- the only one missing is the material bin, so if you want easy access to that you would need to build one and place it outside near the buildings.
In each building there are several makers. Each item takes some in-game time to be completed. If you need or want your items as soon as possible put them in smaller stacks. Some makers have a limit on the number of items/stacks they can hold, so keep that in mind. For items that take a short time to complete it is usually better to put them in their max size stacks (30 items). For items that take several hours, putting them in smaller stacks of 2-5 will enable you to obtain more of them in less time than putting in large stacks. This is useful to know if you need items for a conquest or something similar.