My profile, f 58 single, ratchet screwdriver vital, experienced with IKEA flat packs. This took me 6 hours to build. 40kg package. Unpacked in lounge. Built drawers downstairs, 11 trips upstairs then built frame upstairs. Instructions 90 useful. Top horizontal item 20 had to be read several times. 111 screws. (Avoid blister wear glove). 83 dowels. Large drawer 6.5kg made up. No metal runners. Knots in wood made about 10 screws tough. Oddly drawer knobs hardest in strength terms. Happy with final outcome.