Wooden Railway was a Thomas & Friends merchandise range that consisted of wooden model trains, tracks, and accessories. It was a railway system created in 1993 by Learning Curve, who held the rights until 2011. The range was then acquired by TOMY in 2012. From 2013, the Wooden Railway range was first produced by Fisher-Price, and then by Mattel, when Mattel bought Fisher-Price. The Wooden Railway range was replaced with Wood in 2017.
Wooden Railway worked alongside BRIO and other wooden train brands due to using a nearly-identical track system. However, its successor, Wood, has a different track connecting system, thus ending compatibility with other brands, though adapters for the older Wooden Railway track pieces have been made and released.
Thomas and Friends Fanfic Wiki has a collection of images and media related to Wooden Railway.