Advanced Inventory Mod for Minecarft 1.9.4 Mods allows you to upgrade your inventory with up to six areas that consist of 9 slots each. In addition to that, you can add functionality to them by adding special items like filters or crafters to them.
Download link: Advanced Inventory Mod for Minecarft 1.9.4/1.9
Read more: Minecarft 1.9.4 Mods