Brick edging gives beds a tidy border that blocks grass creep and keeps mulch where you put it.
Brick edging looks simple, yet the jobs that stay neat for years share the same basics: a straight layout, a firm base, and bricks set to a depth that matches how you mow. This walkthrough covers the full build, from choosing bricks to locking them in place, with a few options for curved beds and sloped yards.
What Brick Edging Does For A Bed
A brick edge is a low wall at the boundary between lawn and planting space. It’s doing three things at once. It marks a clean mowing line, it slows turf runners from sneaking into the bed, and it helps mulch stay put after rain or watering.
Bricks also handle freeze-thaw well when they sit on a compacted base. If one shifts later, you can lift and reset it without tearing up the whole border.
Plan The Shape And Height Before You Dig
Start with the mower, not the bricks. If you want the mower wheel to ride on the edging, plan for a “flush” install where the brick top sits level with the grass. If you want a raised lip to hold mulch, plan a brick that sits 1–2 inches above the lawn and accept that you’ll trim against it.
Pick straight, gentle curves, or tight curves based on the brick size. Standard bricks don’t like sharp bends unless you cut them or use a soldier course that turns gradually.
Mark The Line The Easy Way
- For straight runs, stretch a mason’s line tight between stakes.
- For curves, lay a garden hose to the shape you like, then trace it with marking paint or flour.
- Step back and view the line from two angles before you commit to digging.
Choose Bricks That Belong Outdoors
Use clay paving bricks or concrete pavers rated for ground contact. Old reclaimed bricks can work, yet they vary in size, so expect more leveling time. Avoid soft interior bricks; they can crumble after repeated wetting.
Tools And Materials You’ll Actually Use
You don’t need a truckload of gear, but the right few tools keep the border straight and the base tight.
- Spade or edging shovel
- Hand tamper or plate compactor (rent if the run is long)
- Rubber mallet
- 4-foot level or straight board plus a small level
- Landscape fabric (optional)
- Crushed stone or road base (often called 3/4″ minus)
- Coarse sand for bedding
- Bricks/pavers
Dig A Trench With The Right Depth
Depth depends on your brick thickness and the finish height you chose. A common setup is 3–4 inches of compacted base plus about 1 inch of bedding sand, then the brick.
For a flush edge, aim for the brick top to end up level with the lawn. For a slight lip, set the top higher and keep the lawn side neat so the edge still looks sharp.
Trench Width And Clean Sides
Make the trench about 2 inches wider than the brick. That extra space helps you adjust the row, then backfill and lock the outside. Keep trench walls as clean as you can; a ragged trench makes alignment harder.
Build A Base That Won’t Sink Or Heave
The base is where most brick edges win or lose. Spread crushed stone in thin lifts, then compact each lift until it feels firm underfoot. If you can press a boot heel in and leave a dent, compact more.
If your soil stays wet for long stretches, add a little more base depth and slope the bottom of the trench a touch so water can move away from the bed.
For lawn-edge shaping tips that help you keep a crisp boundary even before bricks go in, see the RHS steps for How to Create a Lawn Edge.
Keep Dust And Skin Contact In Check
If you cut bricks with a power saw, control dust and wear a respirator made for fine particles. Bricks and mortar can contain crystalline silica; OSHA explains the hazard and why dust control matters on its Crystalline Silica Overview.
If you mix mortar, avoid bare-skin contact with wet cement. Many Portland cement safety sheets warn that wet cement can burn skin; one example is the Portland Cement Safety Data Sheet.
Set Bricks Straight, Level, And Tight
Once the base is compacted, add about an inch of coarse bedding sand and screed it roughly level with a board. Don’t compact the sand hard before you place bricks; you want room to tap each brick to grade.
Step-By-Step Brick Placement
- Lay the first few bricks along your string or marked curve.
- Check the face line first. Straight edges look better than perfect level bricks that wander.
- Tap each brick with a rubber mallet until it sits at the finish height.
- Use a level across two or three bricks. Adjust by adding or removing a bit of sand under the low spots.
- Stagger joints if you’re doing a two-brick-wide band. For a single row, keep joints snug.
Work in small sections. It’s easier to keep a clean line if you check every 6–8 bricks instead of fixing a 20-foot drift later.
Common Brick Edging Layouts And Where They Fit
Bricks can sit flat, stand upright, or stack. Your pick affects mowing, edging, and how firmly the row resists lateral pressure from roots and foot traffic.
Flat Lay
Bricks laid flat make a wide mowing strip. They’re friendly for lawns that get mowed often and beds that get topped with mulch.
Soldier Course
Bricks set on end create a narrow border with a taller face. They hold mulch well, yet they need a deeper trench and tighter backfill to stay upright.
Stacked Low Wall
Two courses stacked gives a raised edge that reads like a mini curb. This works best with mortar or a retaining adhesive and solid base prep.
| Layout | Best For | Watch Outs |
|---|---|---|
| Flat, single row | Flush mowing edge, simple beds | Needs wide trench; joints can open if base is thin |
| Flat, double row | Wide mowing strip, high-traffic borders | Uses more brick; keep rows parallel |
| Soldier course | Holding mulch, crisp vertical line | Needs deeper base; backfill must be packed |
| Angled soldier (leaning) | Soft curves, casual look | Angle must stay consistent |
| Half-buried “cobbled” | Rustic look with reclaimed brick | Harder to mow cleanly |
| Mortared single row | Patio-style finish next to hardscape | Repairs take longer; freeze-thaw can crack mortar |
| Stacked two-course curb | Raised beds, gravel paths | Base must be solid; drainage planning matters |
| Brick with metal/plastic restraint | Long straight runs | Restraint still needs a firm base and pins |
Lock The Row In Place
After bricks are set, lock them so they can’t wiggle. On the lawn side, backfill with soil and tamp it tight against the brick. On the bed side, add soil or mulch up to the edge you want.
For a dry-set edge, sweep sand into joints, then mist lightly and sweep again. Polymeric sand can also work if your bricks have tight joints, yet read the product label and keep it off plants.
When Mortar Makes Sense
Mortar belongs where the edging works like hardscape: beside a patio, next to a driveway, or as a short raised curb that gets stepped on. In garden beds, dry-set borders stay easier to repair.
How To Edge Garden With Bricks? A Simple Timeline
If you’re planning your weekend, a small bed edge can be a one-day project. Longer borders often feel better split into two short sessions: trench and base first, bricks and backfill next.
- Morning: mark line, dig trench, compact base
- Midday: add bedding sand, set bricks, check line
- Late day: backfill, sweep joints, clean bricks
Work Around Curves, Slopes, And Odd Spots
Real yards rarely offer long, flat, straight runs. These fixes keep the edging looking intentional.
Curves Without Choppy Gaps
For gentle curves, rotate each brick a hair and accept small wedge-shaped gaps on the outside edge. Keep those gaps consistent. For tighter curves, cut bricks so the joints stay narrow, or switch to smaller pavers for that section.
Slopes Without A Wavy Top
On a slope, decide if you want a smooth slanted top or a stepped look. A slanted top reads clean when the slope is mild. For steeper grades, step the bricks down in short drops, keeping each short run level.
Ends, Corners, And Transitions
At the end of a run, bury the last brick a bit deeper or turn it perpendicular as an end cap. At corners, dry-lay a few bricks first, then pick the arrangement that keeps joint lines neat.
Fix Small Problems Before They Turn Into Big Ones
Most brick edges fail in predictable ways: bricks sink, bricks tip, or grass sneaks under. The fixes are usually simple if you catch them early.
Sinking Bricks
If a section sinks, lift those bricks, add base material, compact, re-level the sand, then reset the bricks. Sinking often points to a base that wasn’t compacted enough or soil that stays wet.
Tipping Soldier Bricks
Upright bricks tip when the bed side backfill is loose. Pull the leaning bricks, tighten the base, and pack backfill in thin layers as you reset them.
Grass Creep
If turf keeps crossing the border, sharpen the edge line once or twice a season with a spade. Clean edging starts with a clean cut.
When your bed framing includes treated wood and you’re pairing it with brick edging, it helps to know what materials are safe near food crops. University guidance like The Safety of Materials Used for Building Raised Beds can help you choose liners and frames with fewer surprises.
| What You See | Most Likely Cause | Fix That Works |
|---|---|---|
| Low spot that scalps grass | Brick set below lawn grade | Lift bricks, add sand, tap to flush height |
| Mulch washing over the edge | Edge too low on bed side | Reset to a slight lip or add a second row |
| Bricks rocking underfoot | Loose base or voids under brick | Pull brick, fill with sand, retap, then backfill tight |
| Gaps opening between bricks | Sand loss from joints | Sweep in fresh sand and mist; consider joint-stabilizing sand |
| Soldier bricks leaning | Backfill not packed | Reset with deeper trench and firm packing on both sides |
| Weeds in joints | Windblown seed in sand | Hand pull early; top joints with fresh sand |
Finish With Clean Edges And Easy Upkeep
Rinse brick faces with a light spray and a stiff brush if you’ve smeared wet soil on them. Skip harsh acids near plants. Once everything is set, mow with the mower wheel on the lawn side and keep the bed side topped so you can always see the line.
Every spring, walk the edge and tap any high bricks back to grade. A five-minute check beats a full reset later.
References & Sources
- Royal Horticultural Society (RHS).“How to Create a Lawn Edge.”Shows practical steps for marking and cutting clean bed boundaries.
- Occupational Safety and Health Administration (OSHA).“Crystalline Silica Overview.”Explains where silica is found in masonry materials and why dust control matters.
- Heidelberg Materials.“Safety Data Sheet Portland Cement.”Lists hazards and safe handling notes for wet cement used in mortar.
- University of Maryland Extension.“The Safety of Materials Used for Building Raised Beds.”Provides material safety notes when building bed frames and borders.