Of course, getting a tablet to last longer between charges takes a little effort on your part, as well as a willingness to accept a few connectivity and performance trade-offs, which we address in this slideshow.
A metal base plate protects the bottom sides of your door from dings, scratches and scuffs. Wood door base plates come in two types: adhesive-backed and screw-on. A screw-on base plate requires putting holes in your door, while an adhesive-backed one does not.
I believe the 2x4's he was talking about were the studs along the sides of the pocket door frame... Build the wall with a 2x6 top plate and 2x6's on either side of the door header.... header is of 2x6's.... But the studs on either side of the door frame are only 2x thickness. The additional space allows for electrical boxes if desired.... and the wall will be much more sound around the pocket.