I am building a small garage, 16X21 with 12' ceilings. It will have a 4 post lift, PTAC A/C, and I am planning on 12 each 4' T8 2 bulb fixtures in rows of 3 perpendicular to the entrance for overhead lighting. I am thinking of adding at least 2 each 4' T8 on the 21' walls for fill lighting at 7' off the floor. Any thoughts, has anyone put lighting on the walls? The garage is mainly used to house my hot rod and the excessive lighting is to help with the care and polishing day or night.