An access frame levelling aid and an access frame installation method

An access frame levelling aid 16 is arranged to facilitate positioning of an access frame during installation. The access frame has an upstanding peripheral wall and an outer flange extending outwardly from at least part of the wall for anchoring the frame. The levelling aid comprises a lower spacer 18, which has a support portion 182 arranged to support the flange in use. The lower spacer 18 has a bolt receiving aperture therethrough, wherein the bolt receiving aperture is spaced from the support portion. The aid also comprises a threaded bolt 24 arranged to be received in the bolt receiving aperture and to protrude in-use downwardly therefrom, the bolt being rotatable relative to the bolt receiving aperture for adjusting the extent of protrusion of the bolt. Also provided is levelling aid where the lower spaced has a threaded bolt extending downwardly therefrom and a nut configured to be rotatable relative to the bolt to adjust the protrusion of the nut. A method of use is also provided.