Quick answer: For infield mix (“infield dirt”), find a regional soil or aggregate supplier near your field. Tom Burns of Diamond Pro/TXI advises sourcing close because of transportation costs, and asking for a test (SportsField Management). Mound clay and conditioner come bagged and are listed by more sellers, including landscape-supply branches. Use the state table below. A listing is not an endorsement, and stock varies, so call before driving over.
Three different products
Infield mix is sand, silt and clay. Jeff Langner’s STMA fact sheet says recreational fields often run 70–75% sand and 25–30% silt plus clay. Rutgers researchers in SportsTurf cite ASTM’s 60 to 81% sand; over 75% gets too loose. The MLB groundskeeper blog calls “60 to 70 percent sand, 30 percent clay and 10 percent silt” the general standard for an OK infield. Comparing brands? See Beam Clay vs. Turface vs. Stabilizer.
Mound and plate clay runs above 35% clay, per Rutgers. Beam Clay’s mound guide: “Don’t use the same material on your infield and mound.” Beacon Athletics puts DuraPitch Premium at about mid-30% clay (rec, some high school) and DuraPitch Professional at about 55–65% (college, pro). See mound clay, plate clay and bricks.
Conditioner (calcined or vitrified clay) is a surface product, typically about a 1/8" layer, per STMA. See calcined clay vs. infield mix.
| Product | Used for | Usually sold | Ask |
|---|---|---|---|
| Infield mix | Skinned infield | Bulk, by the ton | Independent lab results? |
| Mound & plate clay | Mound, batter’s boxes | Bags, super sacks, bricks | Dry or premoistened? |
| Conditioner | Thin surface layer | Bags, super sacks, bulk | Spot-use bag count? |
How much to buy
Measure your skinned area and depth, then have the supplier confirm. For mounds, see building a pitching mound.
| Job | Amount | Source |
|---|---|---|
| Raise a regulation high school infield 1" | About 50 tons (2 truckloads) | Diamond Pro |
| 1" of new mix, 60′ Little League field | 25 tons | 2021 Winchester estimate |
| Regulation mound from scratch | 5 tons (200 bags) | Beam Clay |
| Mound top and front slope, 6" deep | About 40 bags | Beam Clay |
| Little League mound | About 13 bags per inch of depth | Beam Clay |
| Batter’s box / catcher’s box | About 4 / 3 bags per inch | Beam Clay |
| Conditioner spot use, 50-lb bags | Mound 1–2, plate 1–2, base paths 2–3 (Little League: 1, 1, 1–2) | Profile Products |
Bagged, bulk, super sack or bricks?
The Turface MVP spec sheet lists 50-lb valve bags, 2,000-lb super sacks and bulk dump-truck loads; Mar-Co’s guide lists 40-lb bags and 2,000- or 3,000-lb super sacks. Larry DiVito of the Twins told SportsField Management bagged material may cost a bit more than bulk but means less waste and easier storage, and the MLB blog’s mound guide notes a vendor gets you the same thing each time.
Bricks are cleaner, easier and replaceable when worn, but Beam Clay warns “you are paying to ship water”: about 14 mound bricks equal one 50-lb bag of mound clay, compacted.
Before buying clay, Beacon Athletics asks: do you have water to keep it moist, and can you maintain “a high-maintenance product”? If not, consider a rubber or artificial mat. On a budget, Profile Products suggests a couple of bags of clay and as many bags of blocks as you can afford, prioritizing the front of the rubber, the landing area and the back-foot spot in each batter’s box.
What it costs
Listed online in 2026 unless dated; before tax and delivery unless noted; prices vary by region and volume.
| Product | Price | Source |
|---|---|---|
| Virgin Infield Mix | $51.90/ton | West Valley Rock |
| Best Play Pro Infield Mix (K-Binder stabilized) | $113.75/ton | West Valley Rock |
| GEORGIA RED Infield Mix, bulk | $75/ton | Beam Clay 2026 catalog |
| GEORGIA RED Premium Infield Mix, bulk | $125/ton | Beam catalog |
| Diamond Pro Calcined Clay Pro Grade, 50-lb bag | $12.85, F.O.B. Fort Worth, TX | Beam catalog |
| Turface MVP, 50-lb bag | $50.83, free shipping | DoMyOwn |
| DuraEdge Native Premium | $73.60/ton | 2021 Winchester estimate |
| DuraPitch Pro mound clay, 50-lb bag | $19.50 | 2021 Winchester estimate |
| Pro League Red conditioner, 50-lb bag | $19.02 | 2021 Winchester estimate |
Example: 50 tons at Beam’s $75 a ton is $3,750 before delivery. New Canaan, Conn.’s October 2022 contract with DuraEdge Products for “Recreation Premium Infield Mix,” chosen because it contains 75% sand, was $26,004; asked whether pricing had changed from the year before, the answer was that shipping costs more. Full budgets: what an infield renovation costs.
Questions to ask before you order
- Do you test at an independent lab? Can I see the results and contact clients? (Bill Deacon, NY Mets)
- Stones or vegetative matter? What do you screen to? Same mix every time? Can I send it back? (Deacon)
- Can I get a sample and the data? Test it yourself (Luke Yoder, Padres).
- Can I see a sieve analysis? (James Hermann; decide first if you’ll blend calcined clay, and if so start with less sand)
- How far does it travel? (Tom Burns: source close, because of transportation costs)
- Should we till the old skin first? Yes, says Dave Dwizlewski, to avoid layering; he also warns there are no “silver bullet” products.
- At a landscape-supply branch: is it in stock at this branch? Their listings say stock varies.
Dr. Norm Hummel: “One of the biggest misconceptions with infield mixes is that they must drain.” Infields must be pitched to shed water; see fixing puddles and drainage.
Gear for this job
- Turface calcined clay conditioner — Kiln-fired granules that go on the skin as a surface conditioner to absorb moisture.
- Packing clay bricks — Dense clay for building the mound landing area and batter’s boxes so they hold their shape under cleats.
- Hand tamp — Packs down each layer of packing clay as you install it on the mound and in the boxes.
- Mound tarp — Covers the mound between uses to hold moisture in the packing clay and keep rain from washing it out.
Buying more than the basics? See our full field maintenance products list. As an Amazon Associate, InfieldFinder earns from qualifying purchases.
Where to buy: suppliers by state
Our directory’s infield mix and mound clay sources as of October 2026. A listing is not an endorsement, and stock varies, so call ahead.
| State | Business | Based in | What the listing says |
|---|---|---|---|
| AL | Miller Sand & Landscape Supply | Anniston | Infield mixes, conditioners, mound clay |
| AZ | West Valley Rock | Buckeye | Best Play infield mixes |
| Stabilizer Solutions | Phoenix | Stabilized infield mix, waterless mound clay | |
| CA | Barney’s Blends | Anaheim | Bucket clay, conditioner, infield mix |
| West Coast Sand & Gravel | Buena Park | Infield mix, mound clay by truckload | |
| Corona Clay Company | Corona | Infield mixes, mound clays | |
| Gail Materials | Corona | Pro Gold Infield Mix | |
| TMT Enterprises | San Jose | Custom infield mixes by ton | |
| Allen’s Valley Loam | Stockton | Stabilizer-treated infield blends, clays | |
| Western Materials | Valencia | Infield mixes, mound clay, conditioners | |
| CO | Arbor Rock | Broomfield | Infield mix, mound clay; bulk, bagged |
| All-American Sports Materials | Henderson | Infield mix, clays; field services | |
| FL | C & H Baseball | Lakewood Ranch | Infield mix; Diamond Pro distributor |
| C.C. Calhoun | Winter Haven | Mines infield, mound clay; bulk | |
| GA | River Sand Inc. | Alpharetta | Mound clay, infield mix by ton |
| Green Acres Supplies | Athens | Infield mix, Brick Dust Pro Mix | |
| The Stone Store | Athens | Infield mix, conditioner, mound mix; delivers | |
| Levinson Athletics | Roswell | Turface, DuraEdge, packing and mound clay | |
| IL | Turface Athletics | Buffalo Grove | Calcined clay conditioners, mound clays |
| Pro’s Choice | Chicago | Calcined clay conditioners; Pro Mound | |
| IN | Estes Material Sales | Hope | Washington Ball Field Mix, delivered bulk |
| Shelby Materials | Shelbyville | Custom infield mixes, mound clay | |
| KY | Alvis Materials | Petersburg | Diamond Dirt mix, mound mix |
| MA | New England Specialty Soils | Leominster | Infield mixes; mound clay, bags, bricks |
| Sheffield Pottery | Sheffield | Infield mix; straight clay for mounds | |
| Read Custom Soils | Wareham | Infield mixes, DuraPitch mound clay | |
| ME | Gray Brothers Grounds Care | Farmingdale | Infield work; Turface MVP on price list |
| MI | Phoenix Stone Company | Mount Clemens | Moisturized mound clay, field bricks |
| StoneQuest | Saginaw | Bulk infield dirt, infield mix | |
| Main’s Landscape Supply | Southfield | Infield, mound clay, bricks; bulk delivery | |
| Eco Green Supply | Wyoming | Mar-Co, Turface lines; bags to bulk | |
| MN | Bryan Rock Products | Shakopee | Red Ball Diamond Aggregate; shipped nationwide |
| MO | SportsFields4u | Warrenton | Infield mixes, bases, pitching rubbers |
| NJ | Beam Clay | Great Meadows | Infield mixes, mound and plate clay |
| NV | Cinderlite | Carson City | Infield mix by cubic yard |
| EP Minerals | Reno | Calcined clay conditioners, mound clay | |
| NY | Batavia Turf | Elba | DuraEdge infield soils, DuraPitch clay |
| Devitt’s Nursery & Supply | New Windsor | Bulk infield mix; Hudson Valley delivery | |
| OH | Pioneer Athletics | Cleveland | Mound packing clays; nationwide shipping |
| Buckeye Trade & Supply | Columbus | Moisturized mound clay, field bricks | |
| Chris Shane Company | Dayton | Mar-Co mixes, mound clay, bricks | |
| Tawa Mulch & Landscape Supply | Findlay | Mar-Co ball mix, mound clay | |
| Kurtz Bros. | Valley View | KB Infield Mix, mound clay; bulk | |
| OK | Mr. Mulch Landscape Supply | Norman | Clay-sand infield mix by the yard |
| ON (Canada) | Mar-Co Clay Products | Bright | Mound clay, packing clay bricks |
| OR | DirTech NW | Oregon City | Infield soil; super sacks, truckloads |
| Valley Athletics | Portland | Infield mixes, mound clays, conditioners | |
| PA | DuraEdge Products | Grove City | Infield mixes, mound clays; nationwide shipping |
| Laurel Valley Soils | Landenberg | Bulk infield mix, direct delivery | |
| Woehler Landscape Supply | McMurray | Infield mix; bulk pickup or delivery | |
| SC | Palmetto Sand and Gravel | Spartanburg | Sand-clay infield mix; bulk delivery |
| TN | Southern Athletic Fields | Columbia | Infield mix, mound and packing clay |
| TX | Crockett Sand & Gravel | Crockett | Infield skin material; East Texas |
| The Outdoor Company | Crowley | Infield clay mix by ton; delivery | |
| Diamond Pro | Dallas | Conditioners, mound clays, infield mixes | |
| Soil Building Systems | Dallas | Baseball Diamond Clay, bagged or bulk | |
| Sports Field Solutions | Fort Worth | Own infield mixes; installation | |
| TMC Sports Turf | San Marcos | Conditioner, mound clay; DuraEdge, Diamond Pro | |
| UT | One Source Materials | Springville | Infield mix, warning track mix |
| VA | Luck Ecosystems (FieldGem) | Richmond | Infield mixes, mound clay |
| WA | Santana Trucking & Excavating | Redmond | Infield Gold clay-based mix |
| WI | Kafka Granite | Mosinee | Decomposed granite, infield mix |
| SportZmix Solutions | Waupaca | Custom clay-silt-sand infield mixes | |
| Waupaca Sand & Solutions | Waupaca | SportZmix, Sure-Hop SELECT mixes; bulk delivery |
Near Austin? Our closest Texas listing is in San Marcos, the rest around Dallas–Fort Worth and Crockett.
Georgia landscape-supply branches
SiteOne Landscape Supply has 20 Georgia branches in our directory, including Buford, Marietta (Cobb Industrial Dr) and Alpharetta (Francis Rd). Their listings say SiteOne’s online catalog lists Turface Professional Mound Clay, Turface 5-Star Mound Packing Clay and Turface MVP, and that stock varies by branch. Ewing Outdoor Supply has 8 Georgia branches, including Marietta, Suwanee and Atlanta, whose listings say Ewing’s catalog lists Turface MVP and Turface Pro League Elite. In Roswell, Levinson Athletics’ listing names Turface 5-Star Packing Clay. More: baseball field suppliers and contractors near Atlanta.
Not in the table?
Browse our infield mix suppliers, mound & plate clay sources and equipment dealers categories. Local yard not listed? STMA notes a soils lab or your local Cooperative Extension office can test a sample for sand, silt and clay. For bases, covers, netting or portable mounds instead of dirt, see our field equipment suppliers guide.
Frequently asked questions
Can I use regular topsoil or fill dirt on an infield?
Test it first: STMA says every skinned infield is sand, silt and clay, and Deacon asks suppliers about stones and vegetative matter. As he puts it, spend “the small amount on a test.”
How much infield mix do I need?
About 50 tons raises a regulation high school infield 1" (Diamond Pro); the Winchester estimate used 25 tons for 1" on a 60′ Little League field.
Is mound clay the same as infield mix?
No. Rutgers puts mound and batter’s-box soil above 35% clay; recreational infield mixes often run 70–75% sand (STMA).
What’s the difference between calcined clay and packing clay?
Calcined clay is a conditioner, a surface product STMA puts at about a 1/8" layer. Packing clay is the high-clay material mounds and boxes are built from.
Stocking up on gear, too? See our baseball field maintenance products guide for conditioners, packing clay, drag mats, chalk, tarps and hand tools.
