Fill-dirt in Auburn, WA

Fill-dirt is subsoil used to raise grade, fill holes, or build embankments; it typically contains fewer organic materials than topsoil. Topsoil is richer and used for planting, while fill-dirt is chosen for stability and compaction rather than plant growth.

A cubic yard of fill-dirt typically weighs between about 2,400 and 3,200 pounds, depending on moisture and particle size. That is roughly 1.2 to 1.6 short tons, so weight can vary enough that suppliers and trucks will sometimes measure by both cubic yards and tons.

Use the formula: cubic yards = (area in square feet x depth in feet) / 27. For quick examples, 1 cubic yard covers about 324 sq ft at 1 inch depth, 108 sq ft at 3 inches, and 27 sq ft at 1 foot. Order 5-10% extra to allow for compaction and uneven grading, and use our material calculator or contact our team for a custom estimate.

Because Hello Gravel sources materials locally, color and texture reflect regional geology and can vary across the Seattle-Tacoma area. You can add color or consistency preferences in the Order Notes, but exact matches to photos are not guaranteed due to natural variation.

Fill-dirt is commonly used to build or regrade bases, but for load-bearing surfaces like driveways or structural foundations you may need engineered or compacted fill and a layer of crushed rock for drainage. For lawns and light landscaping, screened fill-dirt with proper compaction can work well; consult a contractor or engineer for structural projects in the Auburn area, especially where clay soils or seasonal groundwater are factors.

Minimum orders start at 3 tons and deliveries are made by contracted dump trucks (typically tri-axle). Standard delivery requires 2+ business days, with next-day available if ordered before noon CST; drivers may perform tailgate spreading at their discretion but this is not guaranteed. Make sure the truck can safely access your drop zone—narrow streets, low-hanging wires, steep driveways, or limited turnaround in Auburn may affect placement and may incur additional fees.

Call 811 to mark underground utilities before any digging or heavy fills. Clear vehicles, debris, and obstacles from the intended drop area, mark the exact placement with flags or stakes, and ensure there is a stable, level space for the truck to dump. For large fills, check with the City of Auburn about local permits and stormwater rules prior to delivery.

Fill-dirt can contain small rocks, gravel, and naturally occurring debris; suppliers screen materials but exact composition varies by region. If you need clean, rock-free material for planting or fine grading, request screened fill or topsoil specifically when ordering.

For better drainage on slopes or under patios in the Pacific Northwest climate, choose coarser, well-draining fill (for example, sandy loam or a mix with crushed rock) rather than heavy clay. Proper grading, compaction, and a layer of drain rock or perforated pipe where needed will improve long-term performance; consult a local contractor for sites with known drainage or groundwater issues.

Contact Hello Gravel as soon as possible; changes are easier to accommodate before your order is processed and dispatched. We will make a best effort to update orders, but modifications or cancellations may not be possible once trucks are scheduled and suppliers are notified.