sectional

a piece of furniture made up of sections that can be arranged individually or together

relating to or based upon a section (i.e. as if cut through by an intersecting plane); "a sectional view"; "sectional drawings"

consisting of or divided into sections; "a sectional sofa"; "sectioned plates"

related or limited to a distinct region or subdivision of a territory or community or group of people; "sectional tensions arose over slavery"