Downright Simple: Outdoor TV Cabinet17 Mar 2015 ... outdoor tv Cabinet. Super simple outdoor tv cabinet made for 50" tv out of pressure treated lumber and some barn style hardware. The box frame was made out of two 2x8x8 pressure treated boards and the doors were made out of .... and cedar decking for the front door. Have one question? on your bottom 2x4 cleat that is bolted to the house, how did you connect that to the frame of the box? The one pic looks like its behind the 2x8? Great post thanks for the ideas.