We have the same problem and have flat end cap finials such as this. Our curtains hang from rings and they go right to the end.

flat end cap finial

justgotabme, I thought diy might be the way to go, but can't find 2" dowel rods.

Try a local home improvement store. Here's what mine has online, so I should be able to find it here.

I was at Lowe's yesterday and couldn't find either the right length or the desired diameter. The width of the space is a little over 6'. Most of the fluted rods are only 1 3/8" in diameter. I was hoping for 2". I may have to rethink my choices.

Just got back from HD where I purchased an 8' Martha Stewart fluted pole (1 3/8") a pole socket set, and 2 pkgs. of curtain rings. I really wanted a 2" rod but the diy savings was just too substantial to ignore. Thanks to justgotabme for the inspiration!

Dang! I was really hoping for you.

You're welcome 2pups4me! I can't wait to see them installed.

Here's a progress shot - still need to press and hem. Yesterday I purchased fabric for the chairs, too.

Very nice!