TROFAST

Screw the first top to the tall side

Slide in its two rails

Screw on the first divider

Screw the middle top to the divider

Fit its rails

Screw on the second divider

Screw the low top to the divider

Fit its rails

Tap dowels into the bottom of the dividers

Lay the bottom on

Screw the bottom to the dividers

Swing the long rails on

Screw on the low side

Stand it up and click in the runners

Fix it to the wall