Sports Court Line Marking Traditionally, sports courts used painted line markings on outdoor surfaces. However, the team at Simply Playgrounds provide a modern, durable alternative with thermoplastic sports court line markings. We offer our service to sports venues, schools, recreational facilities and colleges across the country. Our sports court line markings adhere to a variety of surfaces and can be designed in a wide range of colours. You can also choose from varying line sizes and even select blocked areas. All materials used to create our thermoplastic line markings are non-slip and hard-wearing to ensure they serve you for many years on those busy sports courts.