18×8×
Fit the dowels and bolts into both sides
Height extension unit, 40 × 28 × 35 cm
20 min · one person · 9 steps · 5 panels · 38 fittings
Fit the dowels and bolts into both sides
Attach the panels to one side
Add the other side
Lock the cam locks
Turn it face down
Check that it's square
Nail on the back panel
Stand it up
Screw it onto the top of the bookcase