Abstract: The disclosure relates to a chassis for such a type or trolley, shelf or the like which, as part of a modular system, is used for meeting different transport or storage needs at offices, in workshops or the like and which comprises chassis members which are constructed from a number of perforated square tubes and on which wheels, feet or the like are fixed. According to the disclosure, the chassis has, at its corners, composite structures which are rigid in the spatial plane of extent of the chassis but are yieldable in another direction. The composite structures consist partly of angular connecting pieces which for example consist of rubber and have projections which extend into mutually meeting end portions of the chassis members and partly of plate or disc-shaped joining pieces which are produced from slighlty flexible sheet metal material and are disposed only on the underside of the chassis. The joining pieces have ridges which engage in perforations in the chassis members.