One of the most common questions we get from homeowners and contractors is how much a cubic yard of dirt actually weighs. The answer matters more than you might think — it determines how many loads your project requires, whether a truck can legally haul your order, and how much your delivery costs. Weight varies significantly by material type and moisture content, so here is the complete breakdown.
Weight Per Cubic Yard by Material Type
The following chart covers the most common fill materials we deliver across DFW and Denver. Dry weight assumes normal field conditions (not oven-dried), and wet weight assumes recent rain or saturated material.
| Material | Dry Weight (lbs/yd) | Wet Weight (lbs/yd) |
|---|---|---|
| Fill Dirt (clean) | 2,000–2,400 | 2,400–2,800 |
| Topsoil (screened) | 1,800–2,200 | 2,200–2,600 |
| Structural Fill | 2,200–2,600 | 2,600–3,000 |
| Sand | 2,400–2,800 | 2,800–3,200 |
| Gravel | 2,800–3,200 | 2,800–3,200 |
Gravel weight does not change significantly when wet because water fills the voids between particles rather than being absorbed into the material. Clay-heavy fill dirt, on the other hand, absorbs and retains water, which is why the wet-to-dry swing is so large.
How Weight Affects Delivery
Every truck on the road has a legal gross vehicle weight (GVW) limit. In Texas, a tandem-axle dump truck is limited to approximately 54,000 lbs GVW, and the truck itself weighs around 28,000–30,000 lbs empty. That leaves roughly 24,000 lbs of payload — which translates to about 10 cubic yards of standard fill dirt. A tri-axle truck can carry more (approximately 16 yards), and an end dump trailer can haul up to 18 yards depending on material weight.
When material is wet and heavy, the truck may need to carry fewer yards to stay under legal weight limits. If you order 10 yards of saturated clay fill, your load could weigh 28,000 lbs — over the payload limit for a tandem truck. In that case, we either split the load or send a larger truck. This is also why delivery costs can increase after heavy rain: the same truck carries less material per trip.
CDL (Commercial Driver's License) requirements kick in at 26,001 lbs GVW, which means every commercial dirt delivery requires a CDL driver. This is already factored into our pricing — we mention it so you understand why you cannot just rent a pickup truck and haul 5 yards of fill yourself. Five yards of fill dirt weighs 10,000–12,000 lbs, far beyond what any pickup or even a one-ton dump trailer can safely handle.
Moisture Content Impact
Moisture is the single biggest variable in dirt weight. Saturated fill dirt can weigh 20–40% more than the same material in dry conditions. After a week of rain in DFW, the clay-heavy fill from local pits absorbs significant water and gets extremely heavy. This affects not just delivery logistics but also compaction behavior, placement timing, and even the structural performance of the fill once installed.
For project planning, always use the wet weight when calculating truck loads and structural loading. It is better to overestimate weight and have margin than to under-spec a retaining wall or overload a truck. If you are ordering material and recent weather has been wet, ask your supplier whether the material is coming from a covered stockpile or an open pit — that tells you whether to expect dry or wet weights.
Weight Per Cubic Foot Conversions
There are 27 cubic feet in one cubic yard (3 x 3 x 3). To convert from the per-yard weights above to per-cubic-foot, divide by 27. Fill dirt weighs approximately 74–89 lbs per cubic foot dry and 89–104 lbs per cubic foot wet. Topsoil runs about 67–81 lbs per cubic foot. Structural fill is roughly 81–96 lbs per cubic foot dry. Sand comes in at 89–104 lbs per cubic foot, and gravel at 104–119 lbs per cubic foot. These per-cubic-foot numbers are useful when working with engineering specs, which often reference pounds per cubic foot (PCF) rather than per yard.
Why Weight Matters for Project Planning
Weight is not just a delivery concern — it directly impacts the engineering of your project. If you are building a retaining wall, the wall must be designed to resist the lateral force of the fill behind it, and that force depends on the weight (unit weight) of the soil. A wall designed for 2,000 lbs/yd fill that gets loaded with 2,800 lbs/yd saturated fill could fail.
Foundation loading is another critical consideration. If you are placing 3 feet of structural fill under a building pad, the weight of that fill adds to the total load the native soil must support. Three feet of structural fill across a 2,000 sq ft pad weighs roughly 490,000 lbs — nearly 250 tons sitting on the ground before the building is even constructed.
For these reasons, any engineered project should specify fill material by both gradation (particle sizes) and unit weight, not just by the generic name. When your engineer says "structural fill at 125 PCF," that translates to about 3,375 lbs per cubic yard — and that is what you need to order and verify.
Get the Right Material at the Right Weight
If you need specific weight or gradation requirements for an engineered project, text us at (469) 523-6420 with your specs. We can provide material data sheets and match the right source pit to your project requirements. For standard residential projects — pool fills, yard leveling, garden beds — the weights in the chart above are all you need to plan your delivery. Use our calculator at filldirtnearme.net/calculator to estimate yards, and we will handle the weight logistics on our end.