18' slider on a pole barn-center stabilizer question

[50flathead]

OK time to start a new thread. I posted earlier about building a wooden threshold under the door of my Morton building. Looks like we'll now be pouring a concrete threshold under the 18' slider and pouring a concrete floor inside the building. Need opinions about the in ground stabilizer in the center of the door. The building is 36' wide and 10' tall with an 18' gable entry sliding door. The door closes on the corner post and center post.This in ground stabilizer guide is proving to be a pain to drive over especially with small tired equipment. Need opinions from the group about just how necessary this thing really is? I'm thinking about deleting it. Any opinions out there?

 

[kbs2244]

Are you talking about the groove that keeps the bottom of the door from flopping back and forth?

If you don’t mind the door bottom flopping then you don’t need it.

 

[bigguns69]

The center ground stabilizer is there to give shear support for the door assembly when they are closed and in the most unsupported manor. If you do not have something like this, in a moderate to high wind event, you will be picking the doors up off the ground and doing repair work. What we did with my dads building, where a new concrete floor and threshold were poured togethered, there is an approximate 1 to 1 1/2 inch drop from the inside concrete floor to where the door slides over. In the center a flat steel bar 1/2" thick x 6" long x 8" deep is set on end, the top flush with the top of the interior floor height, approximately 2" away from the concrete lip. The bottom channel of the doors slide over the imbeeded plate and are trapped between the concrete lip and plate. This works well and is not a big deal to drive over. The corners of the metal plate have been rounded and the part embedded into the concrete, when poured can either have a few holes cut into it or some rebar stock put on it for the concrete to bite into. If you need a sketch, let me know.

 

[50flathead]

Thanks bigguns. What you are describing is exactly what my concrete contractor recommended. Im scheduled for next month. Looking forward to the new floor.