Step 1 – Mark out the side panels
a) Measure 100 mm from the bottom of the side panel (890 x 440) and draw a horizontal line across the width of the unit. Measure 116 mm from the bottom and draw another horizontal line across the width. Then measure 450 mm from the bottom and draw another horizontal line across the width. Measure 466 mm from the base and draw another horizontal line across the width of the unit.
b) At the top of the side panel, in the front and at the back, measure 70 mm down from the top and draw a 16 mm line on both sides. Then measure 16 mm from the front and back and draw a vertical line which crosses the horizontal line which you just marked.
c) At the base of the side panel mark a line 50 mm from the front and 100 mm high. Then 66 mm from the front mark a line another 100 mm high.
Step 2 – Pre-drill
a) On the side panel which you have marked, start from the bottom between the two lines which are 100 mm high and drill two holes 30 mm apart. Next, between your two horizontal lines, drill three holes for the base of the unit. Between the next set of horizontal lines drill another three holes for the shelf. On the top of the sides where you marked out the two 70 mm vertical lines, drill two holes between the lines on the back and the front.
Step 3 – Assemble
a) Hold the side vertically and fit the base by attaching it with the screws inserted into the holes which were drilled 100 mm from the base. Then fit the shelf and hold it between the lines which are 450 mm from the base and screw in the screws. For the two vertical rails (858 x 70) fit them at the top of the side panel between the 70 mm vertical line and screw in for both the front and the back of the unit. Then attach the plinth (858 x 100) between the two vertical lines which are 50 mm from the base of the side panel and screw in.
b) Now attach the backing board (890 x 790) to the back of the unit, ensuring that the unit is 100% square and attach it with 25 mm wire nails.
Step 4 – Fit the doors
a) Lay the doors face down and insert the hinges in the potholes. To keep the hinges square, hold a straight edge against the length of the rear edges of the hinges and then screw them on to the doors. Once you have done this, loosen the mounting plate (the shoe of the hinge) and push it up as far into the hinge as possible and retighten it.
b) You are now ready to fit the doors on to the carcass. Lay the cupboard on to its hardboard backing, hold the door vertically in its length on the side of the carcass and line the bottom of the door flush with the bottom (base) of the cupboard. Then screw the mounting plates of the hinges on to the side panel of the cupboard. Close the door and repeat for the other side.
c) You can now stand your cupboard upright and, by releasing the mounting plates on the hinges, adjust the door so that it opens and closes smoothly. You can then adjust the height and squareness of the door by turning the setting screws in and out on the hinges.
d) The sink will now fit on top of the unit and you can anchor it down with silicone to ensure it stays in position.