Abstract: A frame assembly for retaining a screen, comprising a frame portion with an attachment channel for receiving an edge of a screen infill, the attachment channel having a first surface and the frame portion including an engagement portion against which a first part of a locking insert is held, wherein the locking insert has a second part for bearing towards a screen infill inserted in the attachment channel, the locking insert being resilient so that when the locking insert is positioned with the first part held by the engagement portion the second part applies a force to urge the screen infill against the first surface: and a friction interface provided either between the screen infill and the first surface and/or between the screen infill and the locking insert.