stud 4 a the lip forming a detent for positively locating the backing member 20 a on the stud 4 a at the other end of the backing member 20 a similarly to the installation of previous backing members 20 b 20 c the first groove 26 is caused to engage the lip 10 of the front flange 8 of the second stud 4 b with the end of the first limb 22 typically abutting the internal surface of the web 6 of stud 4 b the limbs 22 and 24 are secured to the respective studs 4 a and 4 b by means of screws 32 or the like extending through the respective flanges 8 into the backing member 20 a as it would be obvious to one skilled in the art only the first backing member 20 a could be installed between the first and second studs 4 a 4 b without having to previously install any other adjacent backing members 20 typically at the end all studs 4 are braced one to the other with the backing members 20 provided for wall furniture fixtures and fittings placed on a plasterboard 40 fig2 secured to the studding 2 if it should be desired to provide a backing member 20 v in a vertical orientation as can be seen in fig1 on the proximal stud 4 a the second groove 28 is caused to engage the lip 10 on the front flange 8 of the stud 4 a and screws 32 are applied through that flange into the backing member 20 v to secure the latter in position as shown the backing member of the present invention is of such dimension.