Stump Grinding Cost in Portland, Oregon

Quick Verdict

Stump grinding cost in Portland typically runs from around $150 for a single small stump up to $900 or more for a large one, with most jobs priced per stump or by the stump's diameter. Grinding chews the stump down a few inches below grade so you can plant, pave, or build over it, and it is faster and cheaper than digging the whole root ball out. In Portland the price moves with stump size, wood hardness, access, root spread, and how many stumps you have. Volume discounts are common when several stumps are ground in one visit. For a firm number, a contractor sizes up the stumps on site.

What Drives Stump Grinding Cost

Grinding price comes down to a handful of factors:

• Diameter. The single biggest driver. Price often scales with the stump's width at ground level, sometimes charged per inch.
• Wood hardness and species. Hardwoods and dense conifers grind slower than soft wood.
• Access. A backyard stump reached through a narrow gate needs a smaller grinder and more setup.
• Root spread. Surface roots that also need grinding add area and time.
• Quantity. Several stumps in one trip lowers the per-stump price by spreading mobilization.

A big, hard, awkward-to-reach stump can cost several times what a small, open, soft one does. That range is why per-stump pricing spans so widely.

Portland Stump Grinding Cost Ranges

Item	Baseline Range
Stump removal / grinding, per stump	$150 - $900+ per stump
Excavator or grinder + operator, hourly	$150 - $350+ per hour
Mobilization	$250 - $800+ flat
Dump / disposal of grindings, per load	$75 - $300+ per load
Small job minimum callout	$500 - $1,500+

Industry Baseline Range: Stump grinding in Portland commonly runs $150 to $900+ per stump, with small stumps at the low end and large-diameter or hard-to-reach stumps at the high end. Multiple stumps in one visit lower the per-stump cost.

These are industry baseline ranges for planning only -- actual pricing depends on site conditions, soil, access, depth, haul-off, and current market conditions. Get a site-specific quote.

Note the minimum callout: a single small stump on its own still carries a mobilization cost, so one tiny stump rarely costs just its per-stump rate. For how per-stump pricing works statewide, see the statewide stump grinding cost guide, and for the scope of the work in the metro, see stump grinding in Portland.

Current Market Reality

The per-stump range assumes decent access and average wood. Real Portland jobs can run higher when the factors stack: a large old-growth-scale conifer stump, dense hardwood, a stump wedged between a fence and a foundation that forces a small hand-guided grinder, heavy surface-root systems, and disposal of the grindings. Tight urban lots are the recurring theme; the harder a grinder is to get to the stump, the more the job costs. Get a look-and-quote so the number reflects your actual stumps, not an average.

Grinding vs. Full Stump Removal

Grinding and full removal are two different services at two different prices:

Approach	What It Does	Relative Cost
Stump grinding	Chews stump a few inches below grade, leaves roots	Lower, faster
Full stump and root excavation	Digs out the entire stump and root ball	Higher, more disruptive

For most landscaping, planting, and even paving, grinding is enough. Full excavation of the stump and roots is reserved for cases where you are building on the exact spot, need the ground fully clear for foundation or utility work, or the roots themselves are a problem. If you are clearing a lot to build, the choice between grinding and full removal affects both cost and the site-prep plan.

When Grinding Fits a Bigger Job

Stump grinding is often one line in a larger clearing or site-prep project. If you are clearing a Portland lot, grinding the stumps left after tree removal is a natural step, and doing it in the same mobilization as the rest of the earthwork saves the separate callout fee. That is why grinding costs are usually best understood as part of the whole site plan rather than in isolation. For how it fits, see the excavation contractor guide for Oregon.

What Happens to the Hole and the Grindings

A detail that catches Portland homeowners off guard is what grinding leaves behind. The machine turns the stump into a pile of wood chips and soil, and that material has to go somewhere. There are a few options, and they affect both the finished look and the price:

• Backfill with the grindings. Cheapest, but the chips are organic and will settle and slump as they break down, so the spot needs topping up later.
• Remove grindings and import clean soil. Better for planting or paving, since you get a stable, mineral-soil fill, but it adds disposal and material cost.
• Spread grindings as mulch. Works when you have beds nearby that can use the chip material.

Surface roots are the other surprise. A big Portland conifer or a mature maple can run roots several feet out, and if you want those gone too, the crew grinds them separately, which adds area and time beyond the stump itself.

Portland Tree Rules Worth Knowing

Portland regulates trees closely, and while grinding a stump from an already-removed tree is usually straightforward, the removal that precedes it may not be. The city's tree code can require a permit to remove certain living trees based on size and location, especially street trees and larger specimens. If your project involves taking a tree down before grinding, confirm whether a removal permit is needed first. A crew that works the metro checks this so you are not caught between a felled tree and a code violation. The broader permitting sequence is covered in the excavation contractor guide for Oregon.

Getting an Accurate Stump Quote

The reliable way to price grinding:

1. Count the stumps and note their approximate diameters.
2. Flag any that are hard to reach or near structures and utilities.
3. Decide whether grinding or full removal fits your end use.
4. Get a per-stump or per-inch quote, plus any minimum callout.
5. Bundle with other work in one visit if you can.

The Bottom Line

Stump grinding cost in Portland is mostly about stump size and access, running roughly $150 to $900+ per stump, with minimums and volume discounts in play. For most uses, grinding beats full removal on cost and disruption. Cojo is CCB licensed and insured, based in Hood River and serving Portland and statewide Oregon. See our excavation services or request a free estimate for your stump work.