Topsoil in Seattle, WA

Delivered prices for screened or blended topsoil in the Seattle-Tacoma area vary by supplier, blend, and season. Expect a typical range of about $40 to $90 per cubic yard delivered; specialty mixes or small orders can cost more. Always request a delivered quote for your zip code to get an accurate price.

A common tri-axle dump truck used by local haulers usually carries about 10 to 14 cubic yards of topsoil, though smaller 6-wheel trucks carry 6 to 8 cubic yards. At the typical per-yard range in Seattle, a full tri-axle load will often cost roughly $400 to $1,200 delivered depending on volume, blend, and access fees. Ask for the truck size and exact cubic yard capacity when you get a quote.

Large retailers sometimes offer bulk delivery in the Seattle area through third-party carriers, but availability, blends, and pricing can be inconsistent by store. Compare their delivered price, blend (screened vs blended with compost), and minimums with local suppliers' quotes, because local suppliers often have more timing flexibility and custom blends. Use Hello Gravel to get multiple local quotes and supplier details for an apples-to-apples comparison.

Physically one cubic yard can fit in many full-size pickup beds, but weight and safe loading are the limiting factors: topsoil can weigh 1,000 to 2,000 lb per cubic yard depending on moisture. For most residential projects in Seattle, we recommend dump-truck delivery for anything more than a half to one cubic yard to avoid overloading the truck, ensure safer unloading, and reduce multiple trips.

Use the rule: cubic yards = area (sq ft) x depth (inches) / 324. For 500 sq ft you need about 3.1 cu yd at 2 inches and 6.2 cu yd at 4 inches. For 1,000 sq ft you need about 6.2 cu yd at 2 inches and 12.3 cu yd at 4 inches; for 2,000 sq ft plan on about 12.3 cu yd at 2 inches and 24.7 cu yd at 4 inches.

Two inches of topsoil is fine for light topdressing or improving existing turf, but it is generally thin for establishing a new lawn. For seeding and good root development in Seattle's cool, wet climate, aim for 3 to 4 inches of quality topsoil or a topsoil/compost blend over the seedbed for better moisture retention and nutrient supply.

In Seattle the best window for seeding with new topsoil is early fall (September to mid-October) when soils are warm and rains help germination, so October can still be suitable if temperatures are mild. Early spring (March to April) is a second option, but fall gives seedlings a head start before summer dryness; avoid very wet or frozen ground and check forecasts before scheduling delivery.

Common issues include excessive rock, large woody debris, construction waste, weed seeds, clay pockets, or too much sand. Ask suppliers for a description of screening size, compost content, and whether the material is tested; request a small sample or delivery to inspect color, texture, and smell, and consider lab testing for heavy metals or contaminants for sites with known industrial history.

Many local suppliers offer screened topsoil and blended mixes such as 70/30 or 50/50 topsoil/compost, and some will create custom mixes by request. Blending availability depends on the supplier and quantity; add blend preferences in your order notes or ask Hello Gravel to confirm mix options before checkout.

Expect truck size and curb access to affect delivery: narrow streets, overhead wires, tight driveways, and steep grades may require smaller trucks or a long carry fee. Additional fees may apply for stairs, driveway stacking, long carry distances, or permits for parking or street blocking in Seattle neighborhoods. Request that your hauler inspect site access and disclose potential extra charges when booking.

Because Hello Gravel sources locally, Seattle-area topsoil reflects regional geology and often contains more organic material and finer textures suited for the Pacific Northwest climate. Expect variation in color and texture between suppliers; ask about screening, compost additions, and drainage characteristics so you get a material matched to your planting needs.

Use Hello Gravel's material calculator and aggregate quiz on the website to get a baseline quantity and mix recommendation, then check your zip code for local supplier options. If you want help, contact our sales team at 855-241-8884 or text 844-407-3734 for personalized recommendations and delivered quotes.