i need 8ft sections do they even make them? trying to find 8foot vynal section in black if not can 8ft aluminum be connected to trex post

Hi Jeff, thank you for reaching out to us today. Great question! The Enhance railing sections from Lowe's are only made in 6ft lengths while Select, Transcend and Signature railing products are made in 8ft section. Transcend railing can come in all black composite 8ft sections but their actual length is 91.5". Additionally, Signature railing is all aluminum and can be used with 4x4 wooden posts with a composite post sleeve. We hope this helps and please give us a call at 1-800-289-8739 if you have any additional questions. Have a great day! -Trex Customer Care