Abstract: Surface ducting comprising a body portion and a removeable lid, the body portion having a base, first longitudinal channels defined by longitudinally extending ribs which are upstanding from the base, and a pair of second longitudinal channels which are arranged one on each side of the first channels and which are each defined by a side wall of the body portion which is upstanding from the base and one of the ribs, the first and second longitudinal channels being of the same height, the first channels being for receiving elongate members, the second channels being narrower than the first channels and being for receiving fixing means, and the lid having integrally formed retainer means for clipping in the second channels.

Abstract: Ducting for installing below a surface, which ducting comprises a body portion and a lid, the body portion having a first longitudinal channel, a pair of second longitudinal channels arranged one on each side of the first channel, and at least two separate channel insert members which are a removable fit in the first channel and which are for receiving elongate members, the lid having retainer means for clipping in the second channels, each channel insert member having base and side walls, and the channel insert members occupying substantially the entire cross-sectional area of the first channel.