Installing weathering steel landscape edging on a flat, level surface makes the process much simpler. Forcing the edging over steep rises or dips can cause it to tilt, although gradual slopes can be accommodated without issue.
When working with gravel borders, we recommend moving the gravel away from the edge before installation. This prevents soil, hardcore, or other materials from mixing with the gravel, and allows for the satisfying final step of raking the gravel neatly against your new corten steel path edging.
Edge Height and Orientation
The metal edging should be positioned so that the top of the stake sleeve aligns with the top of the edge. For general stability, we suggest burying about one-third of the edge in soft ground. In areas like driveways where the edging may be driven over, at least half should be below the surface.
For lawns, the top of the edging should sit flush with the soil, allowing grass and thatch to cover the steel. This improves the visual appeal and prevents mower blades from striking the edge, perfect for corten steel flower bed edging installations.
Joining Multiple Sections
Thanks to our strong joining system, up to four lengths of corten steel border edging can be connected while lying flat next to their final position. This method is faster and easier than joining sections vertically, especially on curves.
Take care not to over-bend the edging during joining. While our system is robust, connections remain the most vulnerable part of the installation. Gentle adjustments along the edge will ensure it sits correctly. If you prefer, installing one length at a time is also perfectly fine.
Temporary Positioning Before Final Fixing
We recommend leaving part of the stakes protruding above the top of the edge until you're satisfied with the line. This makes adjustments easier. Once happy, hammer them flush with the top of the sleeve – a sledgehammer can be used if necessary.
Installing Lawn Edging
For lawns, ensure that the corten steel planter edging runs smoothly. Remove any turf that blocks the desired curve, and backfill any excess gaps after installation.
Check that the steel has an unobstructed path – even a small stone can prevent the edging from sitting flush. Slightly undercutting the lawn edges with a spade helps achieve a clean finish.
Achieving Straight Lines
A string line works perfectly as a guide for straight edges and consistent height. Measure from the top of the string down to the ground during preparation. Minor adjustments can be made using a spade or lever, and hammering a stake base on the opposite side can help secure the edge. A stone or half brick hammered against the stake can also stabilize the installation.
Forming Curves
For standalone curves, start at the ends by inserting stakes into the sleeve before bending the steel. One stake allows the edge to pivot, two provide grip for gradual bending. For curves within longer runs, bend the steel to the desired arc and insert stakes as you progress.
Permanently forming tight curves or angles:
Mark the bend location while the steel is in place using chalk or a pen.
For 3mm edging, place a plank across the steel at the bending point, step on it, and bend incrementally. For tight curves, bend slightly every 2–3 cm to achieve smooth arcs. Watch for slight surface flex; avoid over-bending, and if necessary, correct with gentle hammering on a flat surface like concrete.
6mm edging is stiffer but can be bent using the same method. Edging heights of 75mm and 100mm can be shaped similarly, while 150mm may require a second person. We do not recommend permanently bending 200mm or 300mm edging, although it can still flex to form gentle curves.
As a guide:
3mm thick edging can form a complete 2m-diameter circle.
6mm thick can achieve 4m, and taller sections up to 5m.
Avoid over-bending, which may create kinks or prevent the edge from returning to straight.
Maintaining Vertical Alignment
Check the verticality of the edging visually as you install. Adjust using a stake as a lever if necessary. Slight overcorrection before hammering ensures the steel settles upright.
Finishing and Lawn Integration
When preparing a lawn area, use the top of the steel edge to guide soil levels. For existing lawns, imperfections will be revealed: add fine topsoil where the edge is higher than the grass, remove excess where needed, and seed bare spots. Vertical gaps between steel and lawn curves can be filled similarly for a seamless finish.
On paths or driveways, backfill and compact hardcore around the edge base for stability.
Using these methods ensures your corten flexible steel edging, corten steel border edging, corten steel path edging, and corten steel flower bed edging are installed cleanly, securely, and with a professional finish.
Gradual adjustments, proper staking, and attention to soil conditions make all the difference for long-lasting, visually striking landscape edging.
