We offer a wide selection and stock of our very popular, top-quality Belgian bluestone wall copings and thresholds. These bluestone copings and thresholds are installed using a suitable flexible adhesive. The joints between the stones should be filled with a suitable light gray flexible grout. We recommend using our specially selected adhesives and grouts for a durable bond with our bluestone. Our bluestones are cut using a diamond blade, followed by sanding with P80 sandpaper discs. The P80 disc will give a light finish, while the P120 disc will give a slightly darker finish, depending on your needs and the type of bluestone purchased. Repairing chips in bluestone is easy with the Marmokritt Dark Gray Bluestone Kit + Hardener 150ml. Cut your own stones to your measurements by purchasing the larger sizes available and the cutting materials and tools listed below! All you have to do now is choose your dimensions, thicknesses and required quantities!