wall extension

[repairsalot]

I need to replace some plastic on my wall extension and at the same time replace the wooden piece (similar to the one in the photos). I found that piece at Lowes but it doesn't match up. The good plastic I want to use was one of several extra pieces that the installer left us years ago so I don't know where he bought it. If I bring the scrap piece of plastic with me this time is there another retail chain that is likely to carry a selection of wooden pieces that might include a match? Thank you.

[mrcaptainbob]

I see a manufacturer name tag on that plastic piece. I'd contact them for hep and suggestions....