The world is generally made of up solid things. These things are their own things, indivisible; there are few natural things that are made of different, readily separable elements. Some animals, despite being of and from nature themselves, construct unnatural creations, blighting nature. Birds do this when making their nests, beavers do this when building their dams, but no creature exhibits the complete hubris, the utter disregard for everything good and natural more readily than man. They not only build things out of different things and rearrange nature, they claim to improve upon it, changing the very nature of things. And in the grand irony, as man seeks to completely unravel nature and reality through magic, it has discovered a way to use this magic to return its aberrant creations back unto nature.

The spell undoes the construction of a single object, breaking it down into its individual parts. Sewn or weaved clothing breaks down to its individual threads, mechanical objects separate into their respective parts, wooden constructions split into to their individual boards and nails, stonework breaks down to the singular slabs and bricks, glue unsticks, soldering weakens and dissolves, a book unbinds, etc. It simply disassembles as if all of its fastenings and bindings just came undone. The pieces are not harmed (barring a fall from a great height or some similar circumstance) and the item can theoretically be reassembled.

The spell can affect an object of size tiny. If an object is larger than this, that much of it is still disassembled. If the spell is used against a construct (as in a monster) it deals 2d8 force damage. Magic items can't be disassembled or transmuted by this spell. 

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the size of the object you can deconstruct increases by one category, and the damage dealt increase by 1d8.