30x48 shop lighting

[sam03rc]

Looking for a little guidance on planning out my shop lighting I'm building a 30x48 pole barn style with 14ft ceilings and insulated so walls are bright white. By my calculations ( might not be right) using these lights I have linked below. I'll need 12 units to give me close to 100 lumens per sq/ft. Cost is a factor so trying to stay cheap for this first round of lighting to get me started then add more later if need be. Here is also my grid layout I sketched out hooking up 2 switches and splitting the lights up. Thanks for any help y'all can give me.

https://m.lowes.com/pd/Metalux-SNF-Series-Strip-Shop-Light-Common-8-ft-Actual-2-75-in-x-96-in/3181905

 

[cory58]

Take a look at the lighting layout sticky in this section. I'm no expert, but obstructions (shadows) and how you plan to use the garage effect the lighting layout.

Best of luck. I'm going through the same process, and have been reading as many lighting threads as possible while my garage is being built.

 

[cybrdyke]

Couple of thoughts...
I believe the N in the part number stands for Narrow, which means that the two lamps are really crowded together. This makes them a little difficult to install and replace. It also makes them a little less efficient because one lamp blocks the light from the other. I'd recommend getting the normally sized fixture.
Also, lumens per square foot doesn't work for determining the amount of fixtures you'll need. You've probably learned that method from the many many incorrect threads here. Even if it did, you'd only have about 58 lm/sq.ft. using these fixtures.
With your plan, you'll have average light for general illumination, but will probably want to add in task lighting for any close-up work. This is what is considered the most efficient use of energy.
I'd go with it and add more later, as you suggested.
Good luck,
CD

 

[barnjunkie]

You may want to consider the up-light factor if it is a pole barn. For a barn that size, I'd go with the 4-lamp fixtures (still use 12). It will be the same amount of wiring with twice as much light. Also they will send some of the light up toward the ceiling.
http://www.midlandhardware.com/1769...75274041759052&utm_content=Electrical MHRP-4
prob. more expensive though