Using a mitre saw, cut four pickets to 600mm long as the top and base rails. On four 900mm pickets, mark a line 65mm from either end to mark a cross. Set out the frames with these side rails positioned over the top and base rails, then drill both rails through the centre of the crosses with a 6mm bit.
Position wire panel between the frames, with the panel 30mm below the top of the top rail so it protrudes at the base. Secure frames with bolts from the front, tightening nuts with a shifting spanner.
Cut the last picket to 550mm for the centre rail. On the back of a frame, position the rail between the nuts at the top, securing each end with two 30mm screws. Position the hinges 90mm from the ends, securing the insides with supplied screws. Position the other frame, front-side down, to attach the outside of the hinges.
Use a brush to seal the frame with clear decking oil, checking the end-grain is well coated. To add a handle, on the centre rail, 40mm inside each hinge, drill vertical holes with a 10mm bit to thread rope through and secure with knots.