The WPBakery page builder does include a function named “Grid Builder” which allows you to create custom layouts for the WPBakery code Grid elements.
Important: Before you go on creating custom grids (which is actually a fairly bloated functionality) consider first making use of the Total “Post Cards” element which allows you to select from TONS of preset entry styles or even create your own via a child theme.
Create a New Grid Entry Style
Simply go to WPBakery > Grid Builder and click Add New.