Yes you can...Halfpricedrapes.com carries various lengths and widths and offer custom also........90% of my clients order from them after they see the great selection and great prices for a custom look!

here are white linen drapes they offer in up to 120" long 50" wide or can order custom size and choose what style header you want.

That's great, I've visited that site before! But the fabric choices are a bit overwhelming, what would you recommend (linen, linen cotton, french linen...?)

You could also look at The Shade Store. They have some very nice products and will measure and instal. Your fabric selection would depend on your needs- privacy? light filtering?, black-out? do you have pets? cleanability?

Depending on budget..I love The Shade Store and Smith & Noble for custom drapes but you can count on spending $700 and up per panel.

if on a budget Halfpricedrapes is the way to go....

put in search tab white and all drapes that are in white or off white will come up...you can order up to 10 samples free....go for it

I love the linen and linen blends even some of the faux linen fabrics are pretty..

Oh, great! That's very helpful. I'm not opposed to higher-end or custom, I just wanted to make sure I wasn't overthinking something simple that could be easily achieved on a smaller budget...