How to Install a Cobblestone Driveway Apron

Measure the driveway site, using a tape measure, and insert stakes along the borders . Wrap a string around the stakes to make a simple outline. Stretch another string across the driveway site about 15 to 20 feet in from the curb to mark the end of the apron. Consider adding flair to the ends of the driveway so vehicles can easily pull in and out.

Measure the thickness of the cobblestones and excavate the apron site with a shovel to a depth equal to three times the thickness.

Press a tamping tool over the surface to stabilize the subsoil. Go over the entire area three times or until your shoes don't leave footprints.

Pour two 3-inch thick layers of 3/4-inch crushed rock into the site, tamping the rocks between the layers. Spread the rocks evenly with the back of a shovel and check them with a bubble level.

Line the side walls with edge restraints. Use decorative fieldstones, bricks, pavers or timbers to prevent the cobblestones from moving under pressure.

Sprinkle coarse sand over the aggregate and spread it by pulling a board over the surface. The sand will fill the crevices between the aggregate and form a level surface to set the stones on.

Place the first cobblestone at the middle of one side of the apron without dragging it in the sand. Butt adjacent cobblestones against the sides so the joints are minimal. Lay a board over the cobblestones after placing each section and hit the board with a mallet to tap them down even. Once all the stones are in place, walk over the boards.

Brush fine sand over the cobblestones into the spaces between with a shop broom. Sweep off excess sand and lightly moisten the surface with a hose. Wait 10 minutes and repeat this process to weigh down the sand joints.

Add another layer of sand to fill the top of the joints and dampen it with a hose. The sand will cling to the cobblestones like cement as it dries.