There's no reason you can't use the black balusters with composite decking. I've done it on a few jobs. I'm not sure if timbertech has solid 2x4's or not, but if they do not you could always use ipe 4x4's for post/ipe 2x4's for rails & black balusters.

Al

TT makes a 2x4 its called Builder Board. I have done several TT jobs using pt 4x4 post, post sleave,2x4 top&bottom rail,5/4x6 cap rail with the alum pipe balusters fastened with conectors. My local TT supplier says both the major pipe guys are working with them to get a system able to pass all the code sillyness. John

Do it, Mann!

{{!gwi}}