4" Height Heavy Duty Zero Flex Weathering Steel Garden Edging

4" Height Heavy Duty Zero Flex Weathering Steel Garden Edging

A step up in presence without sacrificing that clean, discreet profile. Straightcurve's 4" Heavy Duty Zero Flex edging is the choice for landscape perfectionists — formal courtyard gardens, feature bed borders, paving lock-in, and anywhere you want a crisp, straight line that holds its shape for decades. The same 2mm CorTen construction as the rest of the Zero Flex family, with a 7mm folded top edge that's tough enough for heavy-use areas.

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

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

• Formal courtyard gardens and geometric designs
• Angular tree surrounds
• Feature bed borders and low raised borders
• Lawn barrier for non-invasive grasses
• Divider between gravels, woodchips, and mulch
• Lock in paving or compacted/loose fill paths
• Discreet lines for perfectionists

• 4" high x 86.75" long sections (7.22 feet per section)
• 2mm thick CorTen (weathering steel) — built to outlast the job site
• 7mm 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 4" 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.