Decomposed Granite Cost Calculator

In 2026, decomposed granite (DG) installed typically costs $3 to $9+ per square foot depending on the type, so a 300-square-foot path might run roughly $900 to $2,700, and a larger 800-square-foot patio $2,400 to $7,000+. The cost depends mainly on the DG type (natural/loose DG is the most economical at around $2-$4/sq ft installed; stabilized DG with a binder is around $4-$7/sq ft; and resin-coated/poured DG is the most expensive at around $6-$12+/sq ft), the application (a simple xeriscape ground cover is cheapest, a pathway is baseline, a patio needs more prep/edging, and a driveway needs a thicker layer and stronger base), and the base preparation (laying over existing firm ground is cheapest, while full excavation with grading and a gravel base costs more). The material itself is relatively inexpensive (DG is sold by the ton or cubic yard, often $40-$80+ per ton/yard), so much of the installed cost is labor, base prep, and any stabilizer/resin and edging. Add-ons like edging (to contain the DG and keep it from spreading), a weed barrier/landscape fabric, drainage/regrading, removing an old surface, a decorative border, and material delivery add to the total. DG is popular for pathways, patios, garden paths, xeriscaping, and rustic driveways because it's natural-looking, permeable, relatively affordable, and lower-cost than pavers or concrete. This calculator lets you set the area, DG type, application, and base prep to estimate your decomposed granite project. Pricing varies by region, the DG type and color, the application, the site prep, and the installer (DIY is cheaper for loose DG, while stabilized/resin and proper base prep often warrant a pro).

Decomposed granite (DG) is a natural material made from granite rock that has weathered and eroded over time into small particles — essentially finely crushed/weathered granite ranging from sand-sized fines up to small gravel — producing a granular material with an earthy, natural appearance (commonly tan, brown, gray, or gold tones depending on the source). It's widely used in landscaping and hardscaping because it's natural-looking, permeable, versatile, and relatively affordable. Common uses include: Pathways and walkways — DG is a classic choice for garden paths, walkways, and trails, giving a soft, natural, rustic look that fits informal and natural landscapes (it's used in many parks and gardens). Patios and seating areas — a DG patio provides a casual, natural-surface outdoor living area at lower cost than pavers or concrete. Xeriscaping and ground cover — DG is popular in drought-tolerant, low-water (xeriscape) landscapes as a ground cover around plants, in place of lawn or mulch, helping with water conservation. Driveways — coarser DG (often stabilized) can surface rustic or rural driveways. Around plantings, trees, and in dog runs — as a permeable, natural ground surface. Decorative landscaping — as a base for fire pits, under furniture, in courtyards, and as a design element. Its benefits: it's natural and attractive, permeable (water drains through, aiding drainage and groundwater recharge — good for eco-friendly and drainage-sensitive areas), relatively inexpensive, easy to install (especially loose DG), and works well in natural, Mediterranean, southwestern, and xeriscape designs. Its drawbacks: loose DG can track (stick to shoes/paws), erode, get dusty, develop ruts, and need replenishing — which is why stabilized and resin-coated versions exist to firm it up. DG comes in natural/loose, stabilized (binder-mixed), and resin-coated/poured forms for increasing firmness and durability. This calculator covers all three types and various applications. DG is a go-to material for natural-looking, permeable, budget-friendly pathways, patios, and xeriscapes. Its look and permeability make it especially popular in dry/western climates and natural garden styles.

Decomposed granite comes in three main forms — natural/loose, stabilized, and resin-coated — that differ in firmness, durability, maintenance, appearance, and cost, letting you balance a natural look against stability. Natural (loose) DG is just the decomposed granite compacted in place without any binder — it's the most economical and gives the most natural, soft look and feel, and it's permeable; however, being loose, it tends to track (stick to shoes and paws and get carried indoors), can erode or wash out (especially on slopes or in rain), gets dusty, develops ruts/low spots with traffic, and needs periodic replenishing and raking — so it's best for low-traffic, informal areas and budgets where some maintenance is acceptable. Stabilized DG mixes the granite with a stabilizing binder (a powder, often a natural psyllium-based or polymer stabilizer) that, when compacted and watered, binds the particles into a firmer, more cohesive surface — it stays looking like natural DG but is significantly more stable: it resists erosion, tracking, dust, and rutting much better, holds up to more traffic, and needs less maintenance, while remaining permeable; it's a popular middle-ground (moderate cost) for paths and patios that want the DG look with better durability. Resin-coated (or poured/bonded) DG binds the granite with a resin (epoxy/polyurethane-type binder), creating the hardest, most durable, and most stable surface — almost like a solid permeable pavement: it strongly resists erosion, tracking, weeds, and rutting, is very low-maintenance, and provides a firm, ADA-friendlier surface, while still being permeable in many formulations; it's the most expensive and is used where a durable, clean, firm DG surface is wanted (high-use paths, commercial areas, accessible surfaces). In short: natural is cheapest and most natural but loosest and highest-maintenance; stabilized is firmer and more durable for a moderate premium; resin-coated is the firmest, most durable, and lowest-maintenance but the priciest. Choose based on the traffic, slope, maintenance tolerance, accessibility needs, and budget. This calculator lets you compare all three, with cost rising from natural to stabilized to resin-coated. For most pathways and patios wanting durability with a natural look, stabilized DG is a popular choice; resin-coated suits high-use or accessible surfaces.

Installing decomposed granite involves preparing the base, adding edging, and laying and compacting the DG — a relatively straightforward process, though proper preparation is key to a stable, long-lasting surface. The general steps: Layout and excavation — mark the area, then excavate to the needed depth (typically a few inches, depending on the application — paths are shallower, driveways deeper) to make room for the base and DG and to set the finished grade. Grading and drainage — grade the area for proper slope/drainage so water sheds and doesn't pool (important to prevent erosion and ruts). Base preparation — for stability (especially for patios, driveways, or soft soils), a compacted gravel/aggregate base is often installed and compacted; over firm existing ground, less base may be needed. A weed barrier (landscape fabric) is often laid down to suppress weeds (though it can affect permeability/stabilizer bonding, so its use varies). Edging — install edging (steel, aluminum, stone, concrete, plastic, or natural borders) around the perimeter to contain the DG and keep it from spreading/eroding outward — important for a clean, lasting edge. Laying the DG — spread the decomposed granite in lifts (layers) to the proper depth (commonly a few inches), raking it level and to the desired grade. For stabilized DG, the stabilizer is mixed in (pre-blended or added) before or during placement. Compaction — compact the DG (with a plate compactor or roller), usually while moistening it with water, to firm it into a solid, even surface; stabilized and resin DG bind/harden during this process (resin is applied/mixed per the product). Multiple lifts may be compacted for thicker applications. Finishing — final grading, smoothing, and for resin-coated, applying/curing the resin. The result is a compacted, natural-looking surface. Loose DG is the simplest (and DIY-friendly), while stabilized and resin-coated require proper mixing/application and compaction for best results. Good base prep, drainage, edging, and compaction are what make the difference between a durable DG surface and one that erodes or ruts. This calculator includes base-prep options and add-ons (edging, weed barrier, drainage). For a quality, lasting installation — especially stabilized/resin or larger areas — proper prep and compaction (often by a pro) are recommended.

Yes — edging is highly recommended (and often essential) for decomposed granite installations because it contains the DG, keeps it from spreading and eroding outward, maintains clean defined edges, and helps the surface last longer and look better. Why edging matters: decomposed granite is a granular material, and without a border to hold it in place, it tends to migrate outward over time — spreading into adjacent lawn, planting beds, or other areas, eroding at the edges, and losing its defined shape — which looks messy, wastes material (requiring replenishment), and can create maintenance headaches. Edging creates a physical barrier around the perimeter that keeps the DG contained where you want it, holds the compacted surface together at the edges (reducing erosion and crumbling), and gives the path, patio, or area a crisp, finished, intentional appearance. It also helps separate the DG from grass (preventing the lawn from creeping in and the DG from spilling into the lawn). Edging options include: steel or aluminum edging (a popular, durable, low-profile choice that gives clean lines), natural stone or boulders, concrete or paver borders, brick, plastic/composite landscape edging, or wood (less durable). The choice depends on the look, durability, and budget. For loose natural DG especially, edging is important to control the loose material; stabilized and resin-coated DG are firmer but still benefit from edging for clean edges and containment. The edging is installed around the perimeter as part of the base preparation, before or as the DG is laid. While you could install DG without edging in some informal, contained settings, in most landscaping applications (paths, patios, beds adjacent to other surfaces), edging is considered an important component for a tidy, durable, low-maintenance result. This calculator includes a steel/metal edging add-on (and a decorative border option). Budget for edging in your DG project — it protects your investment and keeps the surface looking sharp. Skipping edging often leads to spreading, erosion, and more maintenance.

Decomposed granite can work well for both patios and driveways, but the right type and proper installation matter, and there are trade-offs to consider versus harder surfaces like pavers or concrete. For patios: DG makes an attractive, natural, casual patio surface at a lower cost than pavers or poured concrete, and it's permeable (good drainage, eco-friendly) and fits natural, Mediterranean, or southwestern styles well. Stabilized or resin-coated DG is recommended for patios (rather than loose) so the surface is firm, stable, and resists tracking, dust, and ruts — important where you'll place furniture and walk frequently; resin-coated gives the firmest, cleanest, most low-maintenance, and most accessible surface. Considerations: even stabilized DG is softer and less rigid than pavers/concrete (furniture legs can sink or be uneven, and it can shift slightly), it may need occasional maintenance/replenishment, and loose DG would track into the house — so choose a stabilized/resin type and good edging and base for a patio. For driveways: DG (typically coarser and stabilized) can surface rustic, rural, or budget driveways, providing a natural look, permeability, and lower cost than asphalt/concrete/pavers; it needs a thicker layer and a strong, well-compacted gravel base to handle vehicle weight, plus good drainage and edging. Considerations: a DG driveway is less durable than hard paving under vehicle traffic — it can rut, erode, develop potholes/washboarding, lose material, and need regular maintenance, grading, and replenishment, especially with heavy use, turning vehicles, or slopes; stabilization helps but doesn't match asphalt/concrete durability. It's best suited to lighter-use, rural, or aesthetic driveways where the natural look and lower cost are priorities and some upkeep is acceptable. So: DG is a good, cost-effective, attractive choice for patios (use stabilized/resin) and for rustic/light-use driveways (use stabilized, thick base) — but for high-traffic, low-maintenance, or formal applications, harder surfaces (pavers, concrete, asphalt) are more durable. This calculator includes patio and driveway applications (priced higher for the added prep). Match the DG type and base to the use, and weigh the natural look and lower cost against the maintenance versus hard paving. For driveways especially, proper base and stabilization are key.

Decomposed granite requires some ongoing maintenance, with the amount depending heavily on the type (loose vs. stabilized vs. resin-coated) — loose DG needs the most upkeep, while stabilized and especially resin-coated DG need much less. For loose (natural) DG, expect regular maintenance: replenishing/topping up the DG periodically as it compacts, erodes, tracks away, or thins out (loose DG gradually depletes and needs new material added every so often); raking/grading to smooth out ruts, low spots, and unevenness from traffic and weather, and to redistribute the material; controlling dust (loose DG can get dusty when dry); managing erosion (especially on slopes or after heavy rain, where DG can wash out — requiring repair); weed control (weeds can grow in DG, so periodic weeding or pre-emergent treatment, even with a weed barrier); and keeping edging intact to contain it. This makes loose DG higher-maintenance, though the tasks are simple. For stabilized DG, maintenance is significantly reduced — the binder holds the surface together, so it resists erosion, tracking, dust, and rutting much better; you'll do occasional spot repairs/re-stabilizing of any worn or damaged areas, some weed control, and far less replenishing and raking than loose DG. For resin-coated DG, maintenance is minimal — the hard, bonded surface strongly resists erosion, weeds, tracking, and rutting, so it mostly just needs occasional cleaning (sweeping/rinsing) and rare repairs; it's the most low-maintenance DG option. General maintenance for all types includes keeping drainage working (to prevent erosion), maintaining the edging, occasional weed control, and cleaning. Over time, even good DG surfaces may need touch-ups, and high-traffic or sloped areas need more attention. To minimize maintenance: choose stabilized or resin-coated DG, ensure proper base prep, drainage, and edging at installation, and address issues (ruts, erosion, weeds) promptly. This calculator lets you choose the type (with stabilized/resin costing more upfront but saving maintenance). Factor the ongoing upkeep into your choice — loose DG is cheapest upfront but highest-maintenance, while stabilized/resin cost more initially but are much easier to maintain. For low-maintenance, lean toward stabilized or resin-coated.

Installing decomposed granite is relatively quick — a typical residential project (a path or patio) often takes one to two days, though larger areas or those needing extensive base prep can take longer. For a straightforward project (a path, walkway, or modest patio with manageable base prep), the installation — excavating, grading, adding and compacting any base, laying the weed barrier and edging, spreading the DG in lifts, and compacting it (with water) — can often be completed in a day or two. Loose DG over firm ground with simple prep is the fastest; stabilized DG adds the step of mixing the stabilizer and proper compaction; resin-coated DG requires applying/mixing the resin and allowing cure time, which can extend the timeline (and the resin needs to cure before use). Larger areas, driveways, or projects with significant excavation, grading, drainage work, extensive base installation, removal of an old surface, or lots of edging take longer — potentially several days. Factors affecting the time include: the area size, the DG type (loose is quickest; resin needs curing), the amount of excavation and base prep (full excavation and a gravel base take more time than laying over existing ground), grading and drainage work, edging installation, the site access and conditions, removal of any existing surface, and the weather (compaction needs the DG moistened, and resin needs appropriate conditions to cure). After installation, loose and stabilized DG are generally usable soon (stabilized firms up as it cures/dries over a short period), while resin-coated DG needs its cure time before traffic. Compaction (often in multiple passes with watering) is important and shouldn't be rushed for a firm, durable result. Overall, DG is one of the quicker hardscape surfaces to install compared to pavers or poured concrete, contributing to its appeal. This calculator estimates the cost; the installation time depends mainly on the area, the DG type, and the base-prep/site work required. A contractor can give a specific timeline. For most residential paths and patios, plan for a one- to two-day installation, with extra time for large areas, heavy prep, or resin curing.