How To Do Brick Garden Edging? | Clean Lines That Last

Brick edging does two jobs at once: it draws a clean line around a bed and it gives mower wheels a hard track. The win comes from prep. When the base is flat and packed, bricks stay where you put them. When the base is soft, the line waves, gaps open, and you end up redoing sections.

This article walks you through a dry-set install you can adjust later, plus a mortar-backed option for spots that take abuse. You’ll also get a simple way to lay out curves that look smooth from the street.

Plan The Edge So It Mows Clean

Before you pick up a shovel, decide what the mower should do. Most yards look best when the brick top sits level with the surrounding grass, letting the mower roll over without scalping the turf or catching a wheel.

Mark Straight Runs

Drive two stakes just beyond the ends of the bed and pull a mason’s line tight at ground level. Step back and check the sightline. If the run looks off, nudge a stake now. A straight trench is easier to dig when the string stays put.

Mark Curves That Stay Calm

Lay a garden hose on the grass and shape it until the curve feels even. Avoid tiny wiggles; they look fussy and make trimming harder. The Royal Horticultural Society uses the same “string for straight, hose for curves” approach when showing how to form a neat lawn edge. RHS steps for marking and cutting a lawn edge are handy when you want a curve that stays easy to maintain.

Choose A Brick Position

• Flat: simplest to level with grass and easiest to re-set later.
• On edge: taller border with a narrower footprint, needs a deeper trench.
• Slight tilt: creates a wider tire path and sheds water off the top.

Brick Garden Edging Base And Layout Tips

Outdoor borders fail in predictable ways. Bricks move when the base is not compacted, when the trench walls are sloppy, or when one side has no backfill pushing on it. Your base and your side packing do the holding.

Pick Bricks Made For Ground Contact

Choose pavers or clay bricks rated for ground use. They are denser and hold up better when they stay wet in winter. This Old House also calls out severe-weather-rated clay pavers for brick edging and shows a clear layer stack for a dry bed. This Old House dry-bed brick edging method lays out trench depth, packed base, and joint filling.

Use Crushed Stone Under The Bricks

Crushed stone locks together under a tamper. Round gravel rolls and never firms up. Buy “paver base” or “crusher run” from a yard and keep the fines; they help it bind when packed.

Keep The Bedding Layer Thin

After the base is packed, add a thin bedding layer of coarse sand or stone dust and screed it flat. A thick sand cushion lets bricks rock. A thin layer lets you fine-tune height while the packed stone carries the load.

How To Do Brick Garden Edging? Step By Step

This dry-set method fits most beds. It drains well, it’s friendly to curves, and you can lift and re-level a section later without wrecking the whole run.

Step 1: Cut The Turf Line

Slice along your string or hose with a half-moon edger or sharp spade. Cut straight down and keep the lawn edge clean. That cut becomes your guide while digging.

Step 2: Dig A Trench With Square Sides

Dig a trench that is wider than the brick by a few inches so you have room to work. Go down until the soil feels firm. For a flush top, plan the depth so you can fit compacted base plus a thin bedding layer under the brick.

Step 3: Pack The Base In Lifts

Spread crushed stone in shallow lifts, then tamp each lift hard. A hand tamper works for short runs; a small plate compactor is faster for long borders. The goal is a base that does not show deep footprints.

Step 4: Screed The Bedding Layer

Spread your bedding layer, then pull a straight board across it to level. Work in short sections so you do not step on what you just leveled.

Step 5: Set Bricks And Check Level Often

Start at a fixed point like a corner by a drive or a patio edge. Set a few bricks, then check level across the tops and along the run. Tap each brick with a rubber mallet until it sits where you want it.

Step 6: Lock The Bricks In Place

Backfill soil tight against the bed side of the bricks, then pack soil on the grass side so turf presses against the edge. This side pressure keeps a dry-set border from spreading. If the border sits next to loose gravel or a slope, add a hidden plastic paver edging strip on the bed side before backfilling.

Step 7: Fill Joints And Rinse Lightly

Sweep joint sand into the gaps until it stops settling. Brush the brick faces clean. If you use polymeric sand, follow the bag directions, keep the brick tops clean, then mist the joints with a gentle spray.

Table 1: Materials And Quantities For A 25 Ft Border

Item	Starting Quantity	Notes
Brick pavers	75–95 bricks	Count depends on brick length and curve tightness; add extra for cuts.
Crushed stone base	8–12 cu ft	More on soft soils or if you set bricks on edge.
Bedding sand or stone dust	2–4 cu ft	Use a thin layer over the packed base.
Joint sand	1–2 cu ft	Dry sand is easy to refresh; polymeric sand resists washout.
String line and stakes	1 set	Use for straight runs and for checking the run after setting bricks.
Hand tamper	1	Plate compactor rental saves time on longer runs.
Rubber mallet	1	Sets bricks without chipping faces.
Topsoil for backfill	As needed	Pack tight on both sides to stop brick creep.

Make Curves And Corners Look Clean

Curves are where borders start to look sloppy. Dry-fit the bricks before you dig deep. That lets you see where gaps will land and where a cut will look better.

Gentle Curves

Fan bricks slightly so the outer edge follows the curve. Keep the gaps close to even. If one gap opens wide, shift the curve a bit instead of forcing it.

Tight Curves

On tight bends, you may need wedge-shaped filler bricks. Mark the cuts with a pencil while the bricks sit in place, then cut them with a masonry blade. Set the cut pieces back into the run and keep the brick tops level.

Corners

Dry-fit the corner and decide which side keeps full bricks. Put the cut pieces on the less visible run when you can. Keep joint gaps steady so the corner reads crisp.

Use Mortar Only Where It Earns Its Keep

Dry-set brick edging holds up well when the base is packed and both sides are backfilled tight. Mortar can help in a few spots: a steep slope, a wheel track, or a place where soil stays loose after tamping.

Mortar Brace Behind The Bricks

Set bricks on the packed base, then trowel a concrete brace along the bed side. Keep the top of the brace below the brick face so it stays hidden. This adds lateral strength without turning the whole border into a solid pour.

Full Mortar Set For Small High-Traffic Runs

On short runs that take foot traffic, you can set bricks in mortar and point the joints. Measure carefully first. Once it cures, tweaks become demolition.

Table 2: Quick Fixes When A Border Shifts

Problem	What Usually Causes It	Fix
Bricks rock underfoot	Soft base or thick bedding layer	Lift that section, tamp the base in lifts, reset bricks, then pack soil tight.
Gaps keep widening	Weak side packing, joint sand washed out	Repack soil on both sides, sweep in joint sand, then water lightly to settle.
Edge looks wavy	No guide line during setting	Reset a string line and re-lay small sections until the run reads straight.
Bricks sink in one spot	Soft soil pocket or runoff	Dig deeper in that spot, add more crushed base, tamp hard, then reset.
Mulch spills onto grass	Bed side soil sits low	Raise soil behind the bricks, then keep mulch a finger-width below the top.

Keep The Edge Looking Sharp After Installation

Brick borders stay neat with small touch-ups. You do not need special products. You just need a quick check after weather and a refresh of joint sand when it settles.

After Heavy Rain

Walk the line and step on a few bricks. If one rocks, fix it early by lifting that brick and packing the base again.

Each Spring

• Brush joints clean and add fresh sand where it settled.
• Trim back turf that has crept over the edge.
• Pack soil again on the bed side if you see a gap.

Finish With A Fast Final Check

• Brick tops sit level with the grass and do not snag mower wheels.
• The run reads straight on long lines and smooth on curves.
• Soil is packed tight on both sides and joints are filled to the top.
• Brick faces are brushed clean with no sand haze left behind.

If you want another set of visuals before you start, Family Handyman shows a similar concept for brick borders with notes on base prep and setting bricks as a mowing edge. Family Handyman brick border edging project is a good second reference for the workflow.