The project at work that I had hoped would be finished and was spending a lot of time is not finished yet. So I took a last Thursday and Friday off. Also, my college football team had a bye week, that gave me 3 days in a row. 
Things keep changing. I bought a 60 gallon compressor Labor Day. Since it is more permanent than the one I had, I thought I would put it in a corner. The corner that I picked was below the "over the workbench" shelving. So I needed to finish the shelf, so once the compressor was installed I would not have to move it to get behind it.
Here are the links where I was figuring out how to go about installing the compressor.
New Install Dewalt 60 Gallon Air Compressor
Grounds with different size wire and ground wire nut
Before someone yells at me for no disconnect, the breaker panel is just 10 feet away and in full view of the compressor. I still need to break it in, trim the hold-down bolts, install some airline. I will run some 1/2" hose to my hose reel for now, till I get things more settled where the airlines will go. Then I will install something more permanent. As you will see, I am making more changes to the plan that I have already changed.
Now to the "over the workbench" shelf, hereafter in the post referred to a shelf. If you go back to post #32 you will see how I had the plan to have the shelf floating over the bench. At the time of post #32, I was not sure what I was going to use for shelving. So I had some shelving given to me. They have been in a field for a long time and are pretty crusty. That link is where I was trying to figure out how to brace them. So now I am thinking about using those shelves.
I have 2 different sizes 30" x 36" and 42" x 36".
Back to the floating shelf. So the back and right sides will be supported by the girts. That is why in the picture for the right front corner, I have two pieces of C-channel carrying the load to the floor. The left front corner is supported via z-brace and vertical support attached to the purlin. The front horizontal bar is about 44" depth. With my current shelves, I can get 3 depths from them (30", 36", 42") I decided to use the 30" then I would have 14" and a joint. I was going to brace the joint with a second horizontal beam parallel to the front and back. I was trying to keep the structure as light as possible. I was floating the shelf to keep a post from invading the floor space. At 30" the post would be right next to the workbench and therefore not as intrusive. Now you will see the domino effect of that decision. To create the beam, I sistered two c-channel together. Right now you may be asking why all the welding. Besides needing the practice, I had a bunch of this 3-foot long c-channel.
Back to the changes, once I decided to have the floor support instead of building structure, I started over-engineering. I was looking at the beam and posts and decided, why splice a 14" piece on the front just use the 42". I would have to cut and bend the edges to get a 14" piece. Now there would be a post in the middle of the floor. Here are some pictures showing the front edge at 30", 36" and 42". I had removed the floating horizontal bar by this time. The one you see in the first picture will be the beam once I decide where the posts go.
This is at 42"
This is at 36"
This is at 30"
Pros and Cons
The 42" position. Mostly cons. The left post sticks out on the floor. It may be hard to tell from the picture, I was going to have the cabinet pushed up against the parts bin. I have two folding 6' tables stored behind the cabinet. Now there is not enough room between the post.
I like the 30" position as far as where it sits on the floor. It has two downsides.
1. Not enough depth, some of the items would hang off the edge.
2. Looking at the right post, you can see it does not leave much room for where the airline would connect to the compressor.
So I am leaning toward the 36". The left post will be a little in the way, but there is enough room on the right post to put the tables against the wall and fit between the parts bin and the post. There is enough room for the airline. I also can put the items up there without them overhanging. Just the left post is a little out in the way, to the front of the workbench instead of next to it.
I am guessing I need to put some shelving material up there and see how it all fits.
BTW, here is the beam before I painted it. As clutter as things are, that is why I am trying to get my shelving started.
Things keep changing. I bought a 60 gallon compressor Labor Day. Since it is more permanent than the one I had, I thought I would put it in a corner. The corner that I picked was below the "over the workbench" shelving. So I needed to finish the shelf, so once the compressor was installed I would not have to move it to get behind it.
Here are the links where I was figuring out how to go about installing the compressor.
New Install Dewalt 60 Gallon Air Compressor
Grounds with different size wire and ground wire nut
Before someone yells at me for no disconnect, the breaker panel is just 10 feet away and in full view of the compressor. I still need to break it in, trim the hold-down bolts, install some airline. I will run some 1/2" hose to my hose reel for now, till I get things more settled where the airlines will go. Then I will install something more permanent. As you will see, I am making more changes to the plan that I have already changed.

Now to the "over the workbench" shelf, hereafter in the post referred to a shelf. If you go back to post #32 you will see how I had the plan to have the shelf floating over the bench. At the time of post #32, I was not sure what I was going to use for shelving. So I had some shelving given to me. They have been in a field for a long time and are pretty crusty. That link is where I was trying to figure out how to brace them. So now I am thinking about using those shelves.
I have 2 different sizes 30" x 36" and 42" x 36".
Back to the floating shelf. So the back and right sides will be supported by the girts. That is why in the picture for the right front corner, I have two pieces of C-channel carrying the load to the floor. The left front corner is supported via z-brace and vertical support attached to the purlin. The front horizontal bar is about 44" depth. With my current shelves, I can get 3 depths from them (30", 36", 42") I decided to use the 30" then I would have 14" and a joint. I was going to brace the joint with a second horizontal beam parallel to the front and back. I was trying to keep the structure as light as possible. I was floating the shelf to keep a post from invading the floor space. At 30" the post would be right next to the workbench and therefore not as intrusive. Now you will see the domino effect of that decision. To create the beam, I sistered two c-channel together. Right now you may be asking why all the welding. Besides needing the practice, I had a bunch of this 3-foot long c-channel.
Back to the changes, once I decided to have the floor support instead of building structure, I started over-engineering. I was looking at the beam and posts and decided, why splice a 14" piece on the front just use the 42". I would have to cut and bend the edges to get a 14" piece. Now there would be a post in the middle of the floor. Here are some pictures showing the front edge at 30", 36" and 42". I had removed the floating horizontal bar by this time. The one you see in the first picture will be the beam once I decide where the posts go.
This is at 42"
This is at 36"
This is at 30"
Pros and Cons
The 42" position. Mostly cons. The left post sticks out on the floor. It may be hard to tell from the picture, I was going to have the cabinet pushed up against the parts bin. I have two folding 6' tables stored behind the cabinet. Now there is not enough room between the post.
I like the 30" position as far as where it sits on the floor. It has two downsides.
1. Not enough depth, some of the items would hang off the edge.
2. Looking at the right post, you can see it does not leave much room for where the airline would connect to the compressor.
So I am leaning toward the 36". The left post will be a little in the way, but there is enough room on the right post to put the tables against the wall and fit between the parts bin and the post. There is enough room for the airline. I also can put the items up there without them overhanging. Just the left post is a little out in the way, to the front of the workbench instead of next to it.
I am guessing I need to put some shelving material up there and see how it all fits.
BTW, here is the beam before I painted it. As clutter as things are, that is why I am trying to get my shelving started.


