Step 1 Using a combination square draw a line down centre of top and bottom rails, then drill pilot holes through rails along line.
Step 2 Sit 1 rail connector on edge and spread glue along it. Centre 1 top rail on rail connector and screw together.
Step 3 Turn over and spread glue on other edge of rail connector. Centre 1 bottom rail on it and screw together. Repeat Steps 2 and 3 to create 3 more rail assemblies.
Step 4 Place 1 rail assembly on mounting board, parallel with the 1200mm edges. Using storage containers as guides, mark out positions of remaining rail assemblies
Step 5 Spread glue on back of top rail. Return to position on mounting board and screw through top rail to secure. Repeat for remaining rail assemblies
Step 6 Mark out position of mounting board on ceiling with masking tape. Find the ceiling joists by tapping on the ceiling and listening for the change in sound. Confirm by drilling a few small test holes. Transfer the location of the ceiling joists to the mounting board and drill pilot holes at these points.
Step 7 With a helper, lift mounting board and rail assembly and line up with masking tape. Screw into ceiling joists through pilot holes drilled in mounting board. STEP 8 Fill your plastic storage containers then slide them in so the lips sit on the rails.
