I see a variety of sizes for these rack rails, but I need in a 9U length and I do not see this length currently listed for sale. Is it possible to have two of these type of rails cut to a 9U length?

We can supply this product in 9U. The best option is for you to buy the 10U: R0828-10. In the checkout you can then add the note please switch to R0828-09. In the long-term we will work to get the correct part number live so if you want more in the future you can use the correct 9U part number.