No predrilled holes! Part E was supposed to have predrilled holes and they are not there. I had to call the company where I received no apology and they said they were going to send me a replacement after I send them pictures and my invoice. They make you do a lot of work for their mistake and it already took longer to ship than what it originally said. I don’t have a lot of faith that the new unit will be correct either. Never mind all the time it takes to put it together. Now I have a mess in my house including styrofoam everywhere because of the way it is packed. Just pass on ordering this, it’s not worth the headache and frustration.