3" Height Zero Flex Weathering Steel Garden Edging

3" Height Zero Flex Weathering Steel Garden Edging

The clean, low-profile choice for precision garden edging. Straightcurve's 3" Zero Flex CorTen steel edging holds a perfectly straight line between lawn, path, gravel, mulch, or paving — and keeps it there for decades. At just 3" tall, it sits discreetly at grade while delivering the same 2mm CorTen construction as the rest of the Zero Flex family.

The Zero Flex garden edging range comes in three low-profile heights:

• 3" Height — You are here. The most discreet option, ideal for lawn edges and path borders
• 4" Height Zero Flex — A little more presence, great for feature beds and paving lock-in
• 6" Height Zero Flex — The tallest edging height, ideal for invasive grass barriers and deeper borders

• Straight garden paths and lawn areas
• Decorative stone, gravel, and mulch borders
• Angular tree surrounds
• Divider between gravels, woodchips, and mulches
• Paving, compacted stone, and artificial turf edges
• Lawn edge for non-invasive grasses
• Hard soils where trenching is difficult

• 3" high x 86.75" long sections (7.22 feet per section)
• 2mm thick CorTen (weathering steel) — built to outlast the job site
• 6mm top edge — folded lip, no sharp edges
• Pre-scored corners — 9.85" each side of the score line, or make your own
• Joining plates and spiked nails included
• Arrives in pre-rust state (black/gray) — natural patina develops after installation depending on local weather conditions

Pre-scored corners are 9.85" each side of the score line. You can also create your own corners — see the installation video for instructions.

Download 3" Installation Instructions (PDF)

The 3", 4", and 6" edging heights are designed for garden edging applications and use a different connector system to the taller Zero Flex planter range. If you need raised garden beds, retaining walls, or planter boxes, see our Zero Flex Planter range (9.5", 15.75", and 22" heights) instead.