Coupling

Concealed Coupler

4.1 Align and clamp the two frames together, with the coupler sandwiched between the two frames

4.2 Drill, countersink and fix down the length of the frame using the supplied 3.9 x 25mm fixings

4.3 Follow the same process for fixing the frame into an opening (FIG 3)

FIG 3

T-Coupler

5.1 Using the supplied coupler, clamp the product either side of the coupler, ensuring that the coupler sits flush at the top, bottom and back of the frame (FIG 4)

5.2 Drill and countersink holes through the coupler and into the first skin of the opposite frame using the supplied 32mm self-tapping screws

5.3 Follow the same process for fixing the frame into an opening