The barriers for the most part did their job. This is both the 24' and the 12". The single garage door is 7', yet the closest I could get from you is 12'. This makes it a little difficult to use. I also need some 6', but you do not offer them in 12" high. The biggest complaint is the time it takes to empty. It seems to me an additional fill/empty valve in the nose would make emptying faster and much easier. I am not an engineer, but this might be a consideration. It might be of interest for you to know the 6' ones I purchased elsewhere are nowhere near the quality of your product.