Starting with the bottom piece apply liquid nails to the back of the board avoiding the edge closest to the mirror.
How to frame a bathroom mirror on the wall.
Determine trim style and positioning of trim around mirror to obtain measurements specific to.
How to frame a mirror.
Using your miter saw cut your wood at a 45 degree angle so the outside portion of your wood piece will be the full length of the mirror see pic above.
Pick your block and subtract the size of each block from the size of your mirror measurements.
Measure the thickness of the mirror and the bottom track if any.
For example say your mirror is 64 long and you chose a 4 square block for the corners.
Press onto the mirror or wall and use a level to make sure the frame is.
Make cuts for all four sides.
In order for the frame to mount flush against the wall a notch must be cut into the backside of the frame pieces.
Once your frame dimensions are known cut the four sides 1 longer than that final size.
A bathroom mirror doesn t have to be just for function adding a frame adds to the interior style and theme of the bathroom and hides those cheap looking mirror clips especially the plastic ones.