Can I attach 4x4x6 pressure treated posts to a 6" concrete patio? Mr Cheaply On 8:51 PM I have a concrete patio and I want to build a privacy wall with 4x4 and 8' cedar fence pickets running horizontal. Can attach the posts the patio with 4" bolts and Simpson post bases? via /r/DIY http://ift.tt/2yGS7Z9