Remove the top and second drawers from your cabinet so you can screw in the waterfall edge from the inside. Place the waterfall panel alongside the cabinet, leaving the edge slightly overhanging the length of the cabinet. We have selected a distance of 40mm proud for this, with 20mm to account for drawer fronts and the remaining 20mm purely for aesthetics.
Once you have set your waterfall edge measurements, clamp the panel into place. Pre-drill your holes into two points at the front and two points at the back. Now screw it in place. In our case, the waterfall panel has a large overhang at the back that will be used for a breakfast bar. Remove the clamp and have someone help you carry and place the long benchtop on top of the cabinet.
On the underside of each benchtop are grooves for the bench connectors. To bring the two benchtops together, these connectors are slotted into the allocated grooves and tightened with a spanner until secure. Do not secure the benchtop in its final place yet, as it will be easier to install the short benchtop while this is still slightly movable.
Run some wood glue along the edge of the short benchtop. Then smooth the glue on with a scraper before pushing the short and long benches together. Now insert the bench connectors underneath and tighten them with your spanner. Do not fully tighten these bench connectors until you have also adjusted the top. You might need to use a mallet to tap the benchtops into place from the top to do this. Once the benchtops are fitted together correctly, you can fully tighten the joiners.
Once the two benchtops are joined together, get someone to help slide them back into place. Clamp down the benchtop and screw it to the cabinet from underneath. Pre-drill holes at multiple points, then screw both benchtops to the cabinet.
To connect the benchtop to the back panel, you need to install the small angle brackets to the back of the cabinet. You can do this now or before the benchtops have been put into place. Aim to install one angle bracket into each cabinet section. Pre-drill your holes for each angle bracket and then screw them into place.