Concrete Landscape Curbing and Edging

What extruded concrete curbing is

Landscape curbing is a low-slump (stiff) concrete border shaped on site by a curb machine. The crew digs a shallow trench along the bed line, sets a gravel or compacted-soil base, then feeds concrete into a hopper. An auger or ram pushes the mix through an interchangeable steel mold while the machine rolls forward, so the curb comes out fully formed as a continuous ribbon. No forms to build, no joints to fuss with as you go. According to Wikipedia, this extrusion equipment originated in Australia in the 1970s and now shows up in yards across the US.

A hand crew scores control joints every couple of feet, floats the surface, and can add color or a stamp before the concrete stiffens. Most borders are roughly 4 to 6 inches wide at the base and 3 to 5 inches tall, which is enough mass to hold a mulch line and take a mower wheel without chipping.

If you want to size a job before calling anyone, run your bed perimeter through our concrete curb calculator to get linear footage and an estimated concrete volume.

Common concrete curbing styles

The profile is set by the mold, so most curbing contractors offer three or four shapes. Picking one is mostly about looks and how you mow.

The mower's edge is the most popular because it earns its keep every week: the sloped lip lets you run the mower along the border and cut the grass right at the concrete, which is the whole point of paying for an edge in the first place.

Decorative options

Plain gray is the cheapest, but most people spend a little more to make the border look intentional.

• Integral color. Pigment mixed into the concrete gives an earth tone all the way through, so chips don't show a gray core. This is the most common upgrade and adds a couple of dollars per foot.
• Stamped concrete curbing. A flexible mat presses a pattern (brick, slate, cobble, running bond) into the wet top. Stamped work is the priciest finish. LawnLove puts stamped curbing around $3 to $9 per linear foot for the concrete and pattern, and installed prices climb higher with color.
• Stained or antiqued. A release powder or acid-style stain adds a two-tone, weathered look, usually paired with a stamp.

All decorative curbing needs a sealer to keep the color from fading, which is the trade-off for the nicer finish. Budget for resealing every year or two.

Concrete curbing vs plastic, steel, and paver edging

Concrete's pitch is simple: it lasts far longer than the cheap stuff and looks like part of the house instead of a border kit. Here is how the common materials stack up.

Plastic edging "typically needs replacement every 3 to 5 years as it becomes brittle from sun exposure," notes A&E Landscape Borders, while concrete "can last decades without cracking, fading, or shifting" when the base is done right. That last part is the catch, and it's where the real debate lives.

Is concrete curbing worth it?

For most warm-climate yards, yes. It's a one-time install that kills the weekly string-trimming, keeps mulch and grass on their own sides, and reads as a finished detail that helps curb appeal. The material comparison above is the case for it: pay once, skip the replacement cycle.

The honest counterpoint is climate. On the pro forum LawnSite, landscapers are split almost entirely along the frost line. Southern contractors call it profitable and reliable, while installers in the Northeast and Midwest warn that a thin, unreinforced ribbon sitting on poor base will crack and heave. One contributor put it bluntly, saying that after seeing it installed, "it is no better than if you just laid bricks on a very thin layer of mortar," and another predicted years of complaints "over cracked and crumbling concrete curbing" in freezing regions.

That is the real deciding factor. Extruded curbing has no deep footing, so in cold climates frost heave can lift and snap it if the base isn't compacted and draining well. Ask any bidder how they prep the base and whether they add fiber or reinforcement. In a hard-freeze area, a stamped concrete patio or a proper poured edge may hold up better than a thin machine curb. For a full breakdown of pricing by region and job size, see our concrete curb cost guide.

DIY vs hiring a curbing contractor

You can hand-form short runs yourself with wood forms, bagged concrete, and an edging trowel. For a 20 to 40 foot bed, DIY runs materials only, often a few hundred dollars, versus roughly $1,000 or more for a pro to do the whole yard. Hand-forming is slow and the finish rarely matches a machine, but for a small, simple border it's doable. Our how to pour a concrete curb guide walks through forms, mix, and finishing.

The continuous machine look is a different animal. The extrusion equipment is expensive and takes practice, so almost nobody buys a curb machine for one yard. If you want that continuous, one-piece ribbon, hire a curbing contractor. If you're curious how the machines actually work, we cover them in the curbing machine guide.

Maintenance

Concrete curbing is low-effort, not no-effort.

• Seal it. Reseal every one to two years, especially on colored or stamped curb, to lock in color and shed water.
• Repaint or re-stain as the pigment fades on decorative borders.
• Watch for cracks. Hairline cracks at control joints are normal. Wider cracks or lifted sections point to base or frost-heave problems and should be patched before they spread.
• Keep the base draining. Most failures trace back to water and freeze cycles under the curb, not the concrete itself.

Ready to price your own beds? Start with the concrete curb calculator, or head back to the concrete curb guide hub for cost, machines, and how-to pages.

Sources

• Landscape Curbing Cost (HomeGuide)
• How Much Does Landscape Curbing Cost? (LawnLove)
• Concrete Landscape Borders: Pros, Cons & Best Uses (A&E Landscape Borders)
• Concrete Curbing: Worth the Investment? (LawnSite forum)
• Concrete landscape curbing (Wikipedia)