Large tree removal in Washington and Oregon

How big Northwest yard trees get

Oregon State University’s plant database lists the three trees that dominate removal quotes from Bellingham to Ashland. Douglas fir (Pseudotsuga menziesii), the state tree of Oregon, matures at 80–200 ft, with a crown that goes from a dense cone to a broad flat top with age. Western redcedar (Thuja plicata) is listed at 50–70 ft in cultivation and up to 200 ft in the wild. Bigleaf maple (Acer macrophyllum) reaches 50–75 ft, occasionally 100 ft, carries the largest leaves of any maple at 20–30 cm across, and resprouts from a cut stump at more than 3 m in a single year.

For pricing, our model’s top bracket starts at 80 ft, which describes plenty of firs in Lake Oswego and Issaquah subdivisions, not just old growth. The trunk diameter is what the permit office cares about, and a fir that tall usually carries a trunk past most of the landmark thresholds listed below. Species pages: Douglas fir, western redcedar, bigleaf maple.

Sectional dismantling, rigging and when a crane takes over

A big tree with room to fall is felled in one piece, and OSHA’s logging rule spells out what the feller checks first: snow and ice loading, wind, the lean, dead limbs and the location of other trees (29 CFR 1910.266(h)(2)). OSHA’s tree-care hazard bulletin also says ground workers should stay at least twice the tree’s height away from a felling, or one and a half times its height when the tree is pulled over with a rope (OSHA HB 3731, 2014). For a 100-ft fir that is a 200-ft clear circle, which almost no city lot has. Most yard trees therefore become a dismantle:

1. Limb out. The climber ascends on rope, cutting limbs from the bottom up. Small limbs are dropped into a clear zone; limbs over a roof, fence or garden are tied to a rigging line and lowered by a ground worker through a friction device at the base.
2. Take the top. The top section is notched and either dropped into the drop zone or lowered on the rigging line, with the climber tied in below the cut.
3. Chunk the spar. The bare trunk is cut into rounds or logs that are dropped, lowered or, for very heavy wood over a structure, speedlined on a tensioned rope to a landing spot.
4. Process. Limbs go through the chipper; trunk wood is hauled or left as rounds if you want firewood. Then the stump: see stump removal vs grinding.

Green Douglas fir is heavy, and the rigging gear, the anchor point and the tree itself all have limits. A Mississippi State University Extension risk guide gives rough weights by diameter: a stem 16–30 in across runs about 2–10 tons, and one over 30 in more than 10 tons (MSU Extension P3717, 2025). The climber’s own anchor has a floor too: OSHA’s 2021 tree-care inspection guidance cites 29 CFR 1910.140(c)(13), which requires an anchorage that holds at least 5,000 lb per attached worker or is part of a system with a safety factor of two, and accepts the ANSI Z133-2017 §8.1.11 practice of load-testing a ground-installed anchor at about twice the climber’s weight before climbing.

When there is no drop zone, when the pieces would have to be too small to be efficient, or when the trunk is dead or hollow, the crew brings in a crane, which adds a modeled $1,500–$3,500 and often cuts the number of crew-hours. The mechanics, the street-use permit and the OSHA people requirements are on crane tree removal.

Heritage and landmark rules that bite on big trees

Cities regulate by trunk diameter, and the biggest trees get a second layer: heritage or landmark status that either needs a hearing or a higher fee, or bars removal of a healthy tree altogether.

Vancouver, WA runs a voluntary heritage program at 36 in DBH that binds future owners once recorded, and Milwaukie requires “extraordinary circumstances” to remove a healthy tree under its Type B review. Find out whether the tree is designated before you ask for quotes; a crew cannot cut a Portland Heritage Tree or a Bellingham landmark on a standard permit. Every city is listed in tree removal permits in Oregon and tree removal permits in Washington.

Replanting and mitigation scale with size

Replacement rules are written so that a big tree costs more to replace than a small one.

• Portland: “tree for tree” under 20 in, “up to inch for inch” at 20 in and larger, or a payment to the Tree Planting and Preservation Fund of $472 per DBH inch or $712 per on-site tree (FY2025-26). (PCC 11.40.060).
• Gresham: trees 24 in and larger are replaced at one caliper inch per 4 in removed, minimum one tree (DC 9.1000, Table 9.1042).
• Milwaukie: Type B replacement by size: 24 to under 36 in = 3 trees; 36 in and up = 4 trees, plus a Tree Fund fee (MMC 16.32).
• Lake Oswego: one 1.5 in caliper deciduous or 6 ft evergreen per tree removed, 2:1 when a significant tree is removed for development (LOC 55.02.084).
• Seattle: replacement under Director’s Rule 12-2023, with payment in lieu under Director’s Rule 8-2023; hazardous Tier 1–3 trees still require replacement.
• Edmonds: a fee-in-lieu applies to removed trees 24 in and larger (ECDC 23.10).

Ask the permit office for the replacement count in writing before the tree comes down, and pick the species against the site. If the tree is coming out because of laminated root rot, WSU’s advice is to replant only resistant or immune species; maples and alders are immune, pines and cedars tolerant (laminated root rot).

What large tree removal costs

The model: a three-person crew at $225 per crew-hour in Oregon and $210 in Washington, built on the BLS May 2025 mean wage for tree trimmers ($35.40 Oregon, $32.20 Washington, a labor index), plus chipper, truck, saws and fuel. Modeled estimate, not quotes (method).

Modeled estimate, not quotes (method). The spread inside each bracket is mostly rigging time: a fir in an open corner lot sits at the low end, the same fir between two houses at the high end. The full worked examples and what moves a quote are on the tree removal cost page, and the cost calculator runs the model for your tree.

Checking a crew for a big tree

A large removal is where the gap between a licensed company and a pickup-and-chainsaw operation shows. Five things to ask for:

• The license. In Oregon, tree removal requires a CCB or LCB license (ORS 701.005; ORS 671.525); in Washington, L&I contractor registration with bond and insurance (RCW 18.27.010). Look them up: Oregon, Washington.
• Insurance limits that match the job. Seattle’s registry sets a useful benchmark for anyone: $1M general liability with the City as additional insured, an ISA Certified Arborist on staff or retainer, and TRAQ for hazard assessments (SMC 25.11.100).
• The plan. Where the drop zone is, what gets rigged, whether a crane is quoted, and who handles the street permit if a lane is closed.
• The ground crew. OSHA’s hazard bulletin calls for marked drop zones (cones or similar), a signal system between climber and ground before rigging starts, and a worker trained in emergency procedures within sight or voice of any climber working above 12 ft (OSHA HB 3731). Ask how they will keep you, your kids and pets out of the drop zone.
• The permit number. In Portland and Seattle the permit must exist before the first cut; in Seattle, public notice is posted three business days before reportable work and six before removal.

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