Caleb MorganBy Caleb Morgan

Updated November 2026

Learning how to lay stone landscape edging comes down to four things: marking a clean line, digging a shallow trench, building a compacted base, and setting each stone level and tight against its neighbor. When you finish, you will have a border that holds its shape for years, keeps grass out of your beds, and gives your yard a crisp, finished look. The work is physical but straightforward, and most homeowners can complete a 30- to 50-foot run in a weekend.

Choose the Right Stone and Layout

Before you dig, decide what kind of stone you are working with, because the material affects how deep you need to set it. Stacked flagstone, cut granite curbing, and irregular fieldstone each behave differently. Flat pavers and cut blocks sit in a neat row and need a consistent bed. Irregular stones need more attention to fit and more soil or base behind them to stay stable.

Shopping for one? See our guide: 7 Best Landscape Edging Natural Stone Options for Clean Lines (2026).

Look at the shape of the bed, too. Gentle curves are easy to follow with a garden hose or spray paint. Tight radii and sharp corners are harder with thick stone, so use smaller pieces or plan a few cuts. If you are still comparing materials, the overview in Stone Lawn Edging: Sizes, Base and Setting covers common sizes and how each one is set.

Measure height and width

Most landscape stone edging runs between 4 and 8 inches tall above grade and 4 to 6 inches thick. Taller stone gives a stronger visual edge but needs a deeper trench. A reasonable starting point for a typical lawn border is a 4-inch-tall stone with 2 to 3 inches buried. Decide this before you order material so you do not have to dig again.

Tools and Materials You Will Need

Gather everything before you start. Stopping mid-run to find a tool wastes time and can leave a trench open in the rain.

  • Stakes and mason’s string or a garden hose for layout
  • Spray paint or marking flour for the line
  • Flat spade or edging spade
  • Level (4-foot and a short torpedo level)
  • Rubber mallet or dead-blow hammer
  • Plate compactor or hand tamper
  • Landscape fabric (optional, for weed control)
  • Crushed stone or paver base (3/4-inch minus is common)
  • Coarse sand or stone dust for bedding
  • Masonry sand or polymeric sand for joints
  • Wet saw or masonry chisel for cuts
  • Safety glasses, gloves, and ear protection for cutting

For tracing curves and checking alignment, a long flexible garden hose works better than string. If you need extra stakes for the layout, the guidance in Do You Need Stakes for Landscape Edging? How to Set Them Right explains when stakes add stability and when they are unnecessary.

Step 1: Mark the Layout

Lay the hose or mark the line with spray paint on the ground. Step back and look at it from several angles, especially from the house and the walkway. Adjust until the curve flows naturally. Once you are happy, drive a stake at each change in direction and at least every 6 to 8 feet on straight runs, then tie mason’s string between them to define the outer edge.

Measure the distance from the string to your bed or lawn edge. This is your guide for how far to dig. Keep the string at the outer face of the finished stone so the border sits right where you intended.

Step 2: Dig the Trench

Dig a trench along the string line. A common approach is to make the trench as wide as the stone plus about 2 inches of working room on each side, and deep enough to hold the base layer plus the buried portion of the stone. For a 4-inch-tall stone with 2 to 3 inches buried and a 3-inch base, you will typically dig 5 to 6 inches deep.

Keep the bottom of the trench as level as you can. Remove sod, roots, and loose soil. Soft spots will settle, and any dip will show up as a wavy border. If the soil is soft or clay-heavy, go a bit deeper and add more base material.

Check drainage

Standing water under the stone will eventually shift it. If the site drains toward the bed, consider sloping the trench slightly away from the house or adding a small drain path at low points. This is especially important in clay soil.

Step 3: Build and Compact the Base

Add crushed stone base in layers of about 2 inches at a time, and compact each layer with a plate compactor or hand tamper. Aim for a total base depth of roughly 3 inches under standard stone. Stone that sits on a loose base will rock, sink, and crack over time, so do not skip compaction.

Lay landscape fabric over the soil before adding base if you want to slow weed growth from below. Overlap seams by several inches and keep the fabric flat, with no bunching.

Step 4: Set the Bedding Layer

Spread a thin layer of coarse sand or stone dust, about three-quarters of an inch, over the compacted base. Screed it flat with a straight board or a length of pipe run along the trench. This layer lets you fine-tune the height of each stone without disturbing the base beneath it.

Step 5: Lay the Stones

Start at one end, or at a corner, and work in one direction. Set each stone so its top edge is at your target height, usually about 1/2 inch above the finished grade on the lawn side to allow for slight settling and to keep mower wheels from scalping the edge. Press the stone down with a rubber mallet, not a metal hammer, to avoid chipping.

Check every stone with a level both lengthwise and across the face. Keep joints tight, generally 1/4 inch or less for cut stone, and a little wider for irregular stone that you fill later. Stagger joints as you would with a brick wall for better strength. Pull stones out and re-bed them if they rock.

Set the stones with the right pitch

Many installers tilt the stone very slightly back toward the bed, around 2 to 5 degrees. This helps water run toward the planting area instead of pooling against the lawn side and helps the stones resist being pushed outward by soil pressure.

Work with irregular stone

Dry-fit pieces before you set them. Lay out a few feet on the ground, rotate pieces until the faces and heights look right, then transfer them to the trench in order. Fill gaps between irregular stones with smaller chips or soil and tamp them firmly.

Step 6: Backfill and Secure

Backfill behind the stones with the excavated soil or additional base, compacting in small lifts. Stone edging that is not braced from behind can tilt outward under the weight of the mulch or the pressure of the lawn roots. For taller runs, a band of compacted base packed directly against the back of the stone provides the most support.

If you are working with a material that needs extra anchoring, such as thin flat stone, look at How to Install Landscape Edging: A Step-by-Step Guide for Clean Borders for general anchoring methods that also apply to stone.

Step 7: Joint Filling and Finishing

For cut stone with tight joints, sweep polymeric sand into the seams and mist it lightly according to the manufacturer’s directions. The sand hardens when wet and resists washout and weeds. For irregular stone, fill gaps with a mix of stone chips and soil, then top with mulch or a thin layer of soil to finish. Rinse the stone surfaces once the joints have set to remove residue.

  • Plate compactor – Compacts base layers quickly and evenly, which prevents settling and rocking. View on Amazon
  • Dead-blow rubber mallet – Seats stone firmly without chipping edges. View on Amazon
  • Polymeric sand for pavers – Locks joints against weeds and washout once it cures. View on Amazon
  • Wet saw for masonry – Makes clean, square cuts for corners and transitions. View on Amazon

Common Mistakes

  • Skipping compaction. Loose base is the top cause of sinking and wavy edging.
  • Setting stones too high. Stone sitting flush with the lawn invites scalping by the mower.
  • Ignoring slope. Water pooling against the stone pushes it out of line.
  • Leaving gaps behind the stone. Unsupported edging tilts under soil and mulch pressure.
  • Using a metal hammer. It chips edges and can crack thinner stone.
  • Eyeballing the line. Check the string or hose from several angles before digging.

Tips for Long-Lasting Results

  • Lay out the entire run before setting any stone so you can adjust spacing and avoid awkward small cuts at the end.
  • Work during dry weather when the soil is firm and easy to compact.
  • Keep spare stones on hand for future repairs, and label them by section if you used matched pieces.
  • Inspect the border each spring after freeze-thaw cycles. Re-level any stones that have heaved and tamp the base before resetting.
  • For the cleanest finish, keep mulch or soil a half inch below the top of the stone so it stays visible.

FAQ

How deep should I dig for stone landscape edging?

Most stone edging needs a trench about 5 to 6 inches deep for a 3-inch base plus 2 to 3 inches of buried stone. Soft or wet soil may call for more base depth.

Do I need concrete to set landscape stone?

Not usually. A compacted crushed-stone base with a sand bedding layer is the standard method for most landscape stone. Concrete makes sense for very tall walls or where you need maximum rigidity, but it is harder to adjust later.

How high should stone edging sit above the lawn?

Set the top about 1/2 inch above finished grade on the lawn side. This keeps the mower from scraping the edge and allows for minor settling over time.

Can I lay stone edging on sloped ground?

Yes, but step the stones or set each one level along its own length so the top line follows the grade smoothly. Stone on a steep slope may need extra backfill or a deeper base to resist movement.

What joint width should I leave between stones?

For cut stone, aim for 1/4 inch or less. Irregular stone can have wider gaps, which you fill with chips and soil. Tight joints look cleaner but need more careful cutting.

How long does stone landscape edging last?

Properly installed stone edging can last decades. Freeze-thaw movement and root growth are the main causes of failure, so good base preparation matters most.

Should I use landscape fabric under stone edging?

It helps slow weeds from growing up through the joints and base, but it is optional. Use it under the base layer, overlap seams, and keep it flat.

Is stone edging a job I can do myself?

Many homeowners can handle a straight or gently curved run with basic tools. Large retaining-type projects, heavy stone, or steep slopes may warrant a professional, so consult a landscape contractor if the job is complex or the stone is very heavy.

Conclusion

Laying stone edging well is mostly about preparation: a clean layout, a level trench, and a compacted base. Set each stone with the right height and slight backward pitch, keep joints tight, and backfill to support the edge. Done this way, your border will stay crisp and straight for many seasons.

Ready to choose one?

Caleb Morgan

About Caleb Morgan

Caleb Morgan is part of our editorial team and reviews and edits our lawn edging & trimming guides, checking product details against manufacturer specifications and owner feedback.