Dry Stone Walls and Features 8m Garden Wall in Crieff, Perthshire Garden steps and retaining wall in Crieff. i. A badly built wall in Skye - note running joint in cheek end, and unstable copestones. ii. The same cheek end rebuilt with stones tied in correctly. Stone bench seats in Comrie, Perthshire. Home | Dry Stone Walls and Features| Lime Mortar | Why Use Lime Mortar? | Price Guide