Fill-dirt in Kirkland, WA

Prices vary by supplier, delivery distance, site access, and moisture content, but expect a typical range of about $25 to $60 per ton delivered in the Seattle-Tacoma area. Minimum orders, truck type, and offloading difficulty (steep driveways, tight turns) can raise the price, so get a zip-code-specific quote. Use Hello Gravel to compare local supplier quotes and view delivery fees for your address.

For general raising and backfill, a clean, compactable fill-dirt (minimal organic material) is best because it reduces long-term settling. Avoid topsoil or high-organic “fill” that decomposes; for structural areas consider engineered fill or importing compactable fill and compacting in lifts. Always tell suppliers you need structural fill so they can match regional materials used in the Seattle-Tacoma area.

Fill-dirt can be used in Kirkland, but wet winters and underlying clay increase the risk of poor drainage and extra settling. Proper preparation—grading for drainage, compacting in thin lifts, and adding drainage layers or crushed rock where needed—improves performance. For load-bearing projects consider an engineered base rather than relying on uncompacted fill alone.

To raise 1,000 sq ft by 4 inches you need about 12.35 cubic yards (1000 x 0.333 ft / 27). Using a typical fill-dirt weight of about 1.2 tons per cubic yard, that equals roughly 15 tons. Expect a small variance depending on moisture and compaction, so ordering 10-15% extra as contingency is common.

You may need permits if the work changes grade, affects drainage, or involves large quantities of fill; Kirkland Public Works and the Planning Department set rules for grading and stormwater. Small landscaping deliveries often do not require a permit, but larger fills or changes to drainage typically do, and disposal of excavated soil may be regulated. Check with the City of Kirkland (planning or public works) before ordering, and keep documentation if the fill affects neighboring properties or storm systems.

Crushed rock or crusher-run is generally better under patios and pavers because it drains and compacts to a stable, load-bearing base. Fill-dirt can be used to build grade but is not recommended as the final base for pavers where lateral movement and frost can be issues in the Seattle-Tacoma region. If you must use fill-dirt, place a compacted crushed rock layer under the pavers and use geotextile where needed.

Most settlement happens within the first year after placement, especially through wet seasons in Kirkland, though minor settling can continue for several years. Proper compaction in lifts and controlling surface water minimizes future topping-up; without good compaction expect to add material within 1 to 3 years. Plan for inspection and spot filling after the first winter.

Costs vary by project size and whether you hire a contractor or DIY. Equipment rental: a plate compactor can be $70 to $150 per day and a small skid steer $300 to $500 per day; contractor placement and compaction usually adds labor and machine time and can range widely—get local quotes. For accurate budgeting, gather bids that specify lift thickness, compaction targets, and whether the price includes hauling and spreading.

Use fill-dirt to build or regrade slopes where structural fill is required, and finish with topsoil on the surface where you plan to plant grass or landscaping. Topsoil is needed for vegetation and erosion-control seeding; if erosion is a concern, combine proper grading, erosion-control blankets, terraces, or retaining walls and vegetative cover. For steeper slopes in the wetter Kirkland climate, consider professional grading and erosion-control measures rather than relying on loose fill alone.

Hello Gravel connects homeowners in Kirkland with local suppliers and contracted haulers that deliver bulk fill-dirt; check your zip code on our site to see availability and prices. Ask suppliers for material descriptions, delivery notes, and whether the dirt is screened or contains organic matter, and request a sample or photo for peace of mind. For large or engineered fills, request supplier references and consider working with a local contractor experienced with Seattle-Tacoma soils.