You magically assemble unfinished materials you can see within range that are not being worn or carried into products. With enough unfinished material, you can assemble up to eight nonmagical objects. A Large object (contained within a 10-foot cube, or eight connected 5-foot cubes) counts as eight, a Medium or Small object as one, and a Tiny object as one-eighth. The object cannot be securely attached to a surface or a larger object, and if you are working with metal or stone, the assembled object can be no larger than Medium. Unfinished materials can be raw (freshly felled trees or mined ores) or partly-worked (wooden boards or metal ingots), but cannot be finished goods (a constructed building or suit of armor). Examples include:  

• Metals and alloys (such as bronze, iron, or silver) Organic byproducts (such as canvas, silk, or wool) Plant matter (such as flax, hemp, or oak) Stone (such as granite, marble, or sandstone)

You cannot affect creatures or magic items, and you must have proficiency with the appropriate set of artisan's tools to create items of commensurate craftsmanship. For this type of artisanal crafting, the spell completes the equivalent of eight hours' work, which can be part of a longer-term project.