The size and depth of products! Menards also has a much friendlier and helpful staff. I've personally ordered siding and lumber from the building materials department and it was a breeze. The staff was helpful and knowledgeable. The pick up was easy. The selection of tile, and hardwood is far superior. The windows and doors available at Menards are far better than that of Home Depot and Lowes. I still feel there are a few areas of Menards that can be improved, but overall they are becoming the dominant home improvement store in my opinion.