Took about 1.5 hours to assemble with 2 people. There are a lot of pieces but the instructions are pretty helpful. A few of the pieces were mislabeled but we figured it out. The material is cheap particle board so be careful when tightening screws as to not crack the material. Overall be gentle when putting together. The piece works either side meaning you can have the extension on the left or right side because the cabinets and drawers open on both sides. It serves the purpose I needed it for but would’ve liked it to be a little higher quality.