Hi John, thank you for your question. Trex's Transcend rail kits come pre-packaged with (1) crown top rail and (1) universal rail. However, each component that is included in the rail kit can be purchased individually, so that in cases like this, the desired design is possible to achieve. We've simplified the ordering process by creating [steps](https://www.diyhomecenter.com/trex/transcend-railing-post-sleeves) for each component.