Decomposed granite (DG) typically costs $4-$10 per square foot installed, with a national midpoint near $7 for a straightforward residential area. The final price depends most on project size, DG depth and stabilizer, ground preparation, delivery distance, and labor; DIY material costs are often $1-$3 per square foot.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Installed DG surface | $4 per sq ft | $7 per sq ft | $10 per sq ft | Typical prepared area with edging and compaction |
| DG material only | $0.50 per sq ft | $1.25 per sq ft | $2.50 per sq ft | Varies by depth, color, stabilizer, and local supply |
| 500-sq-ft installation | $2,000 | $3,500 | $5,000 | Before unusual access or extensive excavation |
| DIY project materials | $500 | $1,000 | $1,500 | For 500 sq ft, excluding tool rental and owner labor |
What a typical decomposed granite area costs
Most homeowners pay about $4-$10 per square foot for a contractor-installed DG path, patio, or landscape surface. A 200-square-foot path may run $800-$2,000, while a 1,000-square-foot yard area may cost $4,000-$10,000. The broad range reflects the difference between a simple top-up over suitable ground and a new installation requiring excavation, a compacted base, edging, and stabilized material.
A practical planning figure is $7 per square foot for a standard, accessible project. At that rate, 300 square feet is roughly $2,100 and 600 square feet is about $4,200. Quotes may fall below the midpoint for large, open areas with limited preparation or rise above it for small jobs, tight access, steep grades, or premium stabilizer.
Material-only pricing is commonly $0.50-$2.50 per square foot, depending on depth and product. At a 2-inch layer, one cubic yard covers about 162 square feet before compaction and waste; at 3 inches, it covers about 108 square feet. Contractors generally order extra for compaction, irregular edges, and minor grading. Assumptions: U.S. residential project, ordinary access, standard DG color, and no major drainage reconstruction.
How excavation, base rock, and edging shape the quote
An installed quote can combine several distinct tasks. Confirm whether the price includes removal of existing material, base preparation, weed barrier where appropriate, edging, compaction, and delivery. A low per-square-foot bid may cover only spreading DG, leaving the homeowner to pay separately for the work that keeps the surface level and contained.
| Quote component | Typical price | What changes the charge | Common scope |
|---|---|---|---|
| DG material | $0.50-$2.50 per sq ft | Depth, color, stabilizer, and quantity | Loose or stabilized surface layer |
| Labor and compaction | $1.50-$4.50 per sq ft | Site access, grading, and crew time | Spread, shape, wet, and compact |
| Base rock | $0.75-$2.50 per sq ft | Base thickness and aggregate type | Often 2-4 inches for a firmer surface |
| Excavation and disposal | $0.50-$3.00 per sq ft | Soil type, depth, and haul distance | Remove sod, soil, or old paving |
| Edging | $3-$12 per linear ft | Material and number of corners | Steel, aluminum, plastic, or stone restraint |
| Delivery and equipment | $75-$350 per job | Distance, minimum order, and machine access | Aggregate delivery or small-equipment charge |
For labor estimates, a small crew may spend 1-2 days on a 300-500-square-foot area when excavation, base placement, and edging are included. A simple refresh can take only several hours. At roughly $50-$100 per worker-hour, two workers for 12 hours represent $1,200-$2,400 in labor before materials and overhead.
Ask for separate line items for DG, base, excavation, edging, and delivery. This makes it easier to compare bids and spot whether one contractor has excluded a costly preparation step.
Why DG depth, stabilizer, and slope change the price
Depth is one of the clearest cost drivers. A 1.5- to 2-inch finished layer is common for light-use paths and decorative areas, while high-traffic surfaces may need 2-3 inches of DG over a properly compacted base. Increasing DG depth from 2 to 3 inches raises material volume by about 50%, though the total installed quote does not necessarily rise by the same percentage because some labor and setup costs remain fixed.
Stabilized DG contains a binding agent that helps reduce loose particles and erosion. It can add about $0.50-$2 per square foot compared with ordinary DG, depending on product and installation method. Stabilizer is not a substitute for drainage or a sound base; water still needs a suitable route away from buildings and low spots.
Area size and shape also matter. A contractor may charge a minimum of $500-$1,500 for mobilization and a small job, so a 100-square-foot walkway can have a much higher per-square-foot rate than a 700-square-foot patio. Narrow access that prevents a truck or compacting equipment from reaching the work area can add $200-$800 in hand-hauling or extra labor.
Slopes, soft soil, and existing pavement can require added work. On a slope steeper than about 5%, the installer may need stronger edging, more careful grading, or stabilized product to limit movement. Removing 3-6 inches of sod or unsuitable soil can add roughly $0.50-$3 per square foot, with higher charges when disposal is distant or material is difficult to load. Depth, access, and ground condition can move a quote more than the DG color alone.
Ways to lower a DG installation bill without cutting corners
Keep the project boundary simple and define the exact finished depth before requesting bids. Avoid asking for extra depth everywhere if only a driveway approach or main walking route needs a heavier section. A measured plan with square footage, path width, and edging length helps contractors price the same scope instead of guessing.
Where the existing ground is stable and drains well, ask whether it can be graded and compacted rather than fully excavated. This can avoid haul-away charges, but it is not appropriate over loose fill, heavy weeds, or a surface that holds water. A contractor should assess the site before recommending that preparation be skipped.
Compare standard local DG with premium colors and stabilized blends. A readily available tan or gold blend may cost less than a less common color that requires special delivery. Choose edging based on the job: simple metal or durable plastic can cost less than stone borders, while still holding DG in place when installed correctly.
Get at least three itemized quotes using the same depth and base specifications. Ask whether delivery, compaction, disposal, and sales tax are included, and check any minimum charge. Combining a path and patio in one visit may reduce separate mobilization fees, especially when both use the same DG and base aggregate.
How installed DG rates vary across U.S. regions
Local labor and aggregate availability influence price. As a broad budgeting comparison, installed DG in lower-cost rural and inland markets may run around 10%-20% below the national midpoint, while high-cost coastal cities can be 15%-35% above it. These are planning adjustments, not fixed regional tariffs; a nearby quarry or supplier can narrow the difference substantially.
In the Southwest and parts of California, DG is widely used and local supply may keep material costs competitive, though urban labor, permits for associated work, and delivery access can raise the total. In colder northern markets, a smaller supplier network or a short construction season may affect delivery and scheduling. Heavy rain or freeze-thaw conditions also make grading and drainage important, regardless of the quoted material rate.
Delivery distance can outweigh the regional average. A supplier within a short haul may charge $75-$200 for delivery, while a distant source or a small order requiring a dedicated trip can cost $200-$350 or more. Get the delivered price for the required cubic yards, not just the advertised price per yard. Local labor and haul distance often explain why two nearby quotes differ by several hundred dollars.
How long DG crews need for paths and patios
A 100-200-square-foot path with easy access may take a two-person crew about 4-8 hours if the ground is already prepared. A 300-600-square-foot area that needs excavation, base rock, edging, and compaction commonly takes 1-2 working days. Larger projects can take longer when trucks cannot unload close to the work area or when several grades and borders must be built.
Contractor labor rates commonly fall around $50-$100 per worker-hour, though estimates often use a project price rather than an hourly bill. A specialized landscape crew or a high-cost metropolitan market may exceed that range. Equipment rental for a plate compactor or small loader can add roughly $75-$250 per day, sometimes more when delivery and pickup are charged separately.
Scheduling can affect timing and cost. A contractor may complete a simple installation within a few weeks during a quieter period, but spring and early summer demand can lengthen the wait. Rain can delay excavation and compaction because wet soil is harder to grade and may not provide a stable base. For quote comparisons, distinguish crew hours from calendar days and confirm who supplies equipment.
Is DG cheaper than gravel, mulch, or pavers?
DG is often less expensive than a paved patio but more durable and formal-looking than many loose mulch surfaces. Basic gravel installation may cost about $3-$8 per square foot, depending on stone type and preparation. Mulch can cost roughly $2-$5 per square foot installed for a shallow landscape layer, but it decomposes and generally needs replenishment more often.
Concrete pavers commonly run about $12-$30 per square foot installed, with premium patterns and extensive base work costing more. DG therefore can provide a lower-cost walking or seating surface where a natural, compacted finish is acceptable. It is not equivalent to a hard, smooth paving surface: loose DG can track into the house, and mobility needs or frequent wheeled traffic may favor pavers or concrete.
Repair may be cheaper than replacement when the existing DG is only thin or uneven. Adding and compacting a 1-inch top layer can cost about $1-$3 per square foot if no major weeds, drainage problems, or base failure are present. If the surface has deep ruts, persistent puddles, or a failing base, simply topping it can conceal rather than solve the problem. Compare the full installed price with the maintenance and performance each surface requires.
What a 200-, 500-, and 1,000-square-foot DG quote may include
These examples use standard DG, ordinary residential access, and typical U.S. contractor pricing. They are budgeting scenarios rather than guaranteed bids; regional labor, soil disposal, and product choices can change the amounts. Each assumes a finished surface around 2 inches deep, with base work included where needed.
| Project example | Area and scope | Estimated total | Approx. rate | Key assumption |
|---|---|---|---|---|
| Garden path | 200 sq ft, light grading, basic edging | $1,000-$2,000 | $5-$10 per sq ft | Small-job minimum may apply |
| Backyard patio | 500 sq ft, 2-inch DG, compacted base | $2,500-$4,500 | $5-$9 per sq ft | Moderate prep, standard color, nearby delivery |
| Large yard surface | 1,000 sq ft, base, edging, compaction | $4,000-$8,000 | $4-$8 per sq ft | Open access lowers per-foot labor |
A 200-square-foot job can have the highest unit rate because delivery, mobilization, and edging are spread over fewer square feet. A large open area may achieve a lower rate, but extensive excavation or a long material haul can erase that scale advantage. For a 500-square-foot area, a 2-inch layer takes about 3.1 cubic yards before allowance for compaction and waste; ordering roughly 3.5-4 cubic yards is a reasonable starting estimate.
Check that each quote describes the same square footage, depth, base, edging, and haul-away scope. A lower total may simply reflect less excavation or no base material, rather than a more efficient installation.