How To Lay Garden Edge Bricks | Straight, Tidy Borders

Good brick edging keeps lawn, paths, and beds separated while mowing stays quick and clean. With a bit of planning and patient digging, you can build a brick edge that looks neat and stays firm for years.

This guide shows how to build a brick garden edge by hand with basic tools. You will mark the line, dig the trench, prepare a stable base, set each brick, and finish the joints so the edge stands up to rain, frost, and regular foot traffic.

Step By Step Guide To Garden Edge Bricks

Before you start, decide whether you want the bricks flush with the grass, slightly raised, or higher on the bed side. Flush edging lets mower wheels run on the bricks, while a raised edge holds back bark or gravel and gives a stronger visual line.

Main Tools And Materials

Item	Main Use	Practical Tip
Garden Spade Or Half Moon Edger	Cut turf and mark the line	Choose a sharp blade so cuts are clean and quick
Shovel And Wheelbarrow	Excavate and move soil	Keep a tarp nearby for storing good topsoil
String Line And Pegs	Guide a straight edge	Set the string at the planned brick height
Gravel Or Crushed Stone	Form the lower base layer	Use well graded material for drainage and strength
Sharp Sand	Set the final bed for bricks	Dampen slightly so it compacts without clumping
Bricks Or Pavers	Create the visible edge	Pick frost resistant units rated for outdoor use
Rubber Mallet And Spirit Level	Tap bricks into place and check level	Short levels are easier to use along tight curves
Work Gloves And Eye Protection	Protect hands and eyes, especially when cutting	Use whenever you handle bricks or break them to length

Planning The Line And Level Of Your Brick Edge

Use wooden pegs and string to mark a straight run where the edge will sit. For curves, a hosepipe or long flexible batten laid on the ground works better than string, as it bends smoothly without sharp kinks.

Stand back and look from different spots, especially from windows or the patio, and adjust the layout until it suits the rest of the garden. You want the brick edge to tie paths, lawn, and beds together instead of slicing through them at odd angles.

Once the route feels right, mark it on the ground. Cut a shallow slit in the turf with a half moon edger or spade, or sprinkle sand along the hose. This line becomes the outside face of your bricks, so keep it crisp and continuous.

Next, think about level. If the ground slopes, you can either follow the slope or step the bricks down in small drops. For a mowing strip, many gardeners line the brick tops with the finished lawn height so mower wheels can roll along without scalping the grass.

For guidance on clean lawn edges, you can read the RHS guide to creating a lawn edge, which sets out clear depth and spacing tips that match this brick edging method.

Preparing The Trench And Base

A solid base keeps brick edging from sagging, bulging, or creeping out of line. Rushing this step is one of the main reasons edges fail early, so give it steady, unhurried effort.

Start by cutting the turf or scraping away surface material along your marked line. For most garden edge bricks, dig a trench about fifteen to twenty centimetres deep and just wider than the bricks. Pile turf and soil on a tarp beside the trench so you can reuse the good topsoil later against the finished edge.

The base usually has two layers. The lower layer is compacted granular material, such as crushed stone or road base, for drainage and strength. The upper layer is sharp sand that lets you fine tune the level of each brick.

Shovel a layer of crushed stone into the trench so it fills the bottom third to half of the depth, then rake it roughly level. Use a hand tamper or the flat end of a heavy post to compact it firmly until it feels hard under your boots.

Next, add a layer of damp, not soaking, sharp sand on top of the compacted stone. Aim for a uniform thickness that leaves room for the height of the bricks so their top faces will finish at your planned level. Screed the sand with a straight board, using the string line as a reference where possible.

Laying Garden Edge Bricks For A Smooth Border

Now you can start to lay the bricks. This is the satisfying part of how to lay garden edge bricks, when the line you marked turns into a solid border. Keep your string line in place while you work, as it gives a guide that helps keep everything straight.

Begin at the most visible end of the run, such as near a path or patio. Set the first brick on the sand bed and tap it down with a rubber mallet until the top sits at your planned height and flush with the string. Check level side to side across the brick and along the line towards the next brick.

Place the next brick tight against the first with even joints. Tap it down until it matches the height and level of its neighbour. Keep checking with a small spirit level and against the string line. Small corrections now prevent a wavy edge later.

For curves, angle each brick slightly so the joints open on the back edge. Shorter bricks make smooth curves easier. Take your time and make small adjustments so the curve flows naturally instead of bending in sudden kinks.

Cutting Bricks To Fit Neatly

Most edges need a few cut bricks at the ends or where the line changes direction. Measure the gap, transfer the measurement onto a brick with a marker, then cut with a bolster chisel and club hammer, or with a diamond blade in an angle grinder if you are confident using one.

When cutting by hand, score all around the brick along the line, then place the scored line over the edge of a solid block and strike firmly. Wear eye protection and gloves, and stand clear of the line of the blow so fragments are less likely to strike you.

Set cut bricks in the same way as whole ones, with solid bearing on the base and joints that match the rest of the run. Try to avoid thin slivers at the ends, as they tend to work loose over time.

Backfilling And Bracing The Brick Edge

With the bricks set and level, brace them from both sides. On the bed side, pull soil or mulch up to the bricks so the top surfaces are just visible or at the height you planned. On the lawn side, relay turf or level soil so the grass line meets the edge cleanly.

Many landscapers add a hidden concrete or mortar haunch on the outside of the bricks to lock them in place. This is a wedge of mix packed against the bricks on the garden side, stopping movement from mower wheels or wandering roots. If you copy this detail, slope the haunch down and away from the brick tops so it disappears under soil or mulch.

Neat joints help shed water and keep weeds out. Once the bricks are firm underfoot, brush dry sharp sand or polymeric jointing sand across the surface so it falls into the gaps. Work it back and forth until the joints look full, then sweep off the excess.

Lightly water the edge if you used polymeric sand, following the maker instructions so the product sets instead of washing away. For standard sand, repeat the brushing process on a dry day later, as the sand tends to settle after the first soak.

Choosing Bricks And Patterns For Your Garden Edge

Before buying in bulk, lay a short test section on a flat surface so you can see how the bricks look next to your lawn and planting. Check colour under both sun and shade, and wet the bricks to see how they change after rain.

Pattern	Visual Effect	Best Use
Single Row Stretcher Bond	Simple line with minimal joints	Mowing strip beside straight lawns and paths
Double Row Stretcher Bond	Broader edge with stronger presence	Wide borders and paths that frame seating areas
Soldier Course On Edge	Tall, narrow face of brick ends	Beds that need more height to hold back mulch
Sawtooth Or Zigzag	Lively, angled rhythm along the edge	Informal beds and cottage style planting schemes
Basketweave	Checked surface that draws attention	Short feature sections near paths or steps
Mixed Clay And Concrete	Subtle colour shifts across the run	Beds that bridge old and new hard surfaces
Raised Brick Wall One Or Two Bricks High	Small retaining edge with clear outline	Beds on gentle slopes above paths or terraces

How To Lay Garden Edge Bricks For Lasting Results

By now you have seen each stage of how to lay garden edge bricks, from the first string line to the final sweep of sand. The method stays simple, yet the care you give to base preparation, levelling, and joint filling decides how long the edge keeps its shape.

If this is your first attempt, start with a short, straight run beside a path or bed so you can learn the feel of setting each brick. Once you are happy with the result, extend the line or repeat the process on another border. Small wins here build confidence for longer, straighter runs later on elsewhere.