Frame in modular design

A frame in modular design for installation in a piece of furniture, comprising a first frame module comprising a first guide rail, a second guide rail, a first connecting element, and a second connecting element, wherein the first guide rail comprises a first guide rail end and a second guide rail end, wherein the second guide rail comprises a first guide rail end and a second guide rail end, wherein at least one of the first connecting element or the second connecting element is arranged in a region of at least one of the first guide rail end or the second guide rail end, wherein at least one of the first connecting element or the second connecting element is arranged in the region of at least one of an opposite first or second guide rail ends, wherein a second frame module is configured to connect to the first frame module by a suspension device, wherein the suspension device is configured to be received in the second frame module in one of the first connecting element or the second connecting element, wherein the frame contains a pull-out device movable relative to the second frame module, wherein the pull-out device comprises a mounting frame that is slidable and pivotable relative to the second frame module, wherein the pull-out device comprises a pivotable strut, wherein the pivotable strut contains a first guide element and a second guide element, wherein the pivotable strut and the first guide element and the second guide element are pivotable relative to the second frame module about a pivot axis that is vertical in an installed state.