How to Install Concrete Edging Stones: A Step-by-Step Guide

Installing concrete edging stones can significantly enhance your landscape's appearance and functionality. These durable, low-maintenance stones create clean lines, define spaces, and prevent soil erosion. Here's a comprehensive guide on how to install concrete edging stones, ensuring a professional finish that will last for years.

Before you start, ensure you have the right tools and materials. You'll need concrete edging stones, a shovel, a level, a tape measure, gloves, safety glasses, and a rubber mallet. Having a wheelbarrow on hand will also make transporting materials easier.

Preparation and Planning

Proper planning is crucial for a successful installation. Start by measuring the area where you'll install the edging stones. This will help you determine how many stones you need. Most edging stones are sold in linear feet, so knowing your measurement will ensure you purchase the correct amount.

Next, mark out the path of your edging using stakes and a string line. This will serve as a guide as you install the stones. Ensure the line is straight and follows the desired path. If you're creating curves, use a garden hose or bendable stakes to create a smooth, flowing line.

Excavating the Trench

Using a shovel, dig a trench along the marked line. The trench should be deep enough to accommodate the height of your edging stones, typically around 2-3 inches. The width of the trench should be about 1-2 inches wider than the stones to allow for mortar and to ensure a snug fit.

As you dig, ensure the bottom of the trench is level. This will provide a stable base for your edging stones and prevent them from leaning or wobbling. Use a level to check the depth and ensure it's consistent throughout the trench.

Laying the Base

Before installing the edging stones, prepare a base to support them. A layer of sand or a mixture of sand and gravel will provide a stable, level foundation. Spread the base material evenly in the trench, using a level to ensure it's flat and even.

If you're using a sand-gravel mix, compact it lightly using a tamper or a piece of wood. This will help prevent settling over time. Once the base is prepared, you're ready to start laying your edging stones.

Installing the Concrete Edging Stones

Begin at a straight section of the trench, preferably at a corner or a straight edge. This will give you a starting point that's easy to align. Apply a layer of mortar to the base, using a trowel to spread it evenly. The mortar should be about 1-2 inches thick, depending on the size of your stones.

Pick up the first edging stone and place it on the mortar, pressing down gently to ensure it's level with the top of the trench. Use a level to check that it's straight and even. If necessary, adjust the stone or the mortar to achieve a level surface.

Laying the Stones in Course

Continue laying the edging stones in a straight line, using mortar to bond each stone to the one before it. Ensure each stone is level and aligned with the one next to it. Use a rubber mallet to gently tap down any stones that are slightly higher than their neighbors.

As you work, periodically check that your line is straight and true. Use a level to ensure the stones are even, and a tape measure to check that they're spaced correctly. If you're creating curves, adjust the spacing between stones to accommodate the curve's radius.

Cutting Edging Stones to Size

If you need to cut edging stones to fit around curves or to fit the end of a straight run, use a wet saw or a masonry blade on a circular saw. Wear safety glasses and gloves when cutting to protect yourself from debris.

Measure and mark the stone where you need to make the cut. Use a straight edge to draw a line along the mark, then cut along the line. If you're using a wet saw, follow the manufacturer's instructions for safe operation. If you're using a circular saw, use a slow, steady speed to make the cut.

Finishing and Maintenance

Once you've laid all the edging stones, use a rubber mallet to gently tap down any stones that have shifted during installation. Check that each stone is level and aligned with its neighbors.

Allow the mortar to cure for at least 24 hours before backfilling the trench. Use the excavated soil to fill around the edging stones, tamping it down gently to ensure a stable base. If you're planting anything along the edging, do so now, taking care not to disturb the stones.

Concrete edging stones require minimal maintenance. Occasional cleaning with a mild detergent and water will keep them looking their best. Inspect the edging periodically for any signs of damage or settling, and make repairs as needed. With proper installation and care, your concrete edging stones will provide a beautiful, durable border for your landscape for many years to come.