Abstract: A service access unit for a floor system having elongate trunking for one service feed segregated from other service feed or feeds, has a frame to extend across and beyond such trunking at least to one side. The frame is securable in an aperture in the floor of greater size than an included lesser aperture into the top of the trunking. A subsidiary member fits within the frame and extends into said lesser aperture in affording outlet for the service in the trunking. Outlet for at least one other service whose feed is outside the trunking can be taken from at least one side of the subsidiary member but within the frame.

Abstract: A flooring system with services segregation for an existing base or substrate (10) to give a new floor, comprises elongate segregation ducting (20) shown with spaced parallel sides (34) and medial divider(s) (36) extending therealong, the sides (34) and divider(s) (36) being apertured (48, 40) to communicate selectively with trough-like elements (50) bridging over space below for segregation of service passageways to each side of the divider(s) (36); and elongate supports (22), for the new floor are shown extending away from the segregation ducting in spaced parallel relation and definhe segregated further passageways (22A, F1, F2) communicating with the apertures (48) of the sides of the segregation ducting.

Abstract: Services segregation apparatus for a gap between corrugated sheeting (40) of flooring comprises at least one apertured divider (11) communicating separately with upwardly closed elements (17, 18) to each side. Endmost elements also communicate with sheeting channels. Services (45, 46) are segregated by the divider and then by passing under or between the elements without cross-overs relative to other segregated services. Three-way segregation is also described and universal side and division blanks.