Materials
What Is in Cornhole Bags? Corn vs All-Weather Resin Fill Explained
Marisol Vega, Contributor
10 min read
You opened a bag in the garage and found dust, or a league flyer says "ACL bags only" while a retail listing says "regulation corn fill." Before you spend money on a backyard set or spare bags for league night, you need a straight answer to what is in cornhole bags and whether corn versus resin is about feel, storage, or the rule book.
The short answer: Cornhole bags are stuffed with either whole-kernel feed corn (traditional) or plastic resin pellets (modern all-weather fill). Finished bags still land near 6in x 6in and roughly 15 to 16oz regardless of stuffing. The American Cornhole Association lists corn or resin pellets as allowed fill on its regulation product page. American Cornhole League sanctioned events require bags from the current approved manufacturer list; competitive bags are resin-filled and must not leak pellets.
Quick facts: fill and regulation at a glance
| Fill type | Typical materials | ACA allowed? | ACL sanctioned play? | Best storage | Typical retail anchor |
|---|---|---|---|---|---|
| Whole-kernel corn | Feed corn, field corn, deer corn | Yes | No (approved list is resin only) | Dry indoor bin or shelf | cornhole.com eight-pack corn fill at $29.95 |
| Plastic resin pellets | Polyethylene or polypropylene beads | Yes | Required path for competitive play | Patio, shed, garage | Vendor resin and pro lines (no single list price in research) |
| Sand, rice, beans | DIY experiments | Not standard for regulation play | No | Varies | Not a regulation default |
Weight and thickness bands differ by body. The ACA regulation product page lists finished weight at 14 to 16.25oz and thickness about 1in (±⅛in). ACL general bag parameters target 16oz (15.5oz to 16.5oz tolerance), thickness 1.3in (1.1in to 1.5in), and a minimum 7.5in diagonal on new bags, with a laid-flat size of 6in x 6in (5.75in to 6.25in tolerance).
What is in cornhole bags: corn, resin, and odd fills
Whole-kernel corn (feed corn, field corn, deer corn)
Traditional cornhole bags use whole-kernel feed corn as fill. A cornhole.com retail listing specifies 16oz of whole kernel feed corn in 6in x 6in 10oz duck cloth bags for a set of eight.
Corn shifts inside the bag as you throw. It lands quiet on the board and breaks in over time, but that break-in comes with dust. Skip's Garage and DIY sources describe kernels grinding down until the bag feels looser and throws differently than it did new.
The trade-off is moisture. Corn absorbs water, clumps, and can attract pests when bags live in a humid shed or sealed tub after rain. That is less about tournament rules and more about whether you want to dry bags for two days after every storm.
Plastic resin pellets (all-weather and synthetic fill)
Most all weather cornhole bags and pro lines use plastic resin pellets, often polyethylene or polypropylene beads. Cornhole America and Board Decals describe resin as the industry default for weatherproof play.
Resin keeps weight uniform bag to bag, wipes clean, and does not rot. Vendors market dust-free resin as pellets that break down slowly so less plastic dust ends up on the board. That matters for ACL play, where foreign residue on the playing surface is a real concern.
Alternatives readers ask about (sand, rice, beans)
Nudge Printing and Canvas ETC mention sand, rice, and beans in DIY experiments. None of those are standard for regulation play. If you are sewing bags for carnival toss games, odd fills are fine. For backyard frames that should match official size and weight, stick with corn or resin.
Corn fill vs resin: side-by-side comparison
| Factor | Corn-filled | Resin-filled |
|---|---|---|
| Feel in hand | Loose, shifts with each throw | Firm, consistent |
| Slide on board | Changes as dust forms | More stable; fabric break-in matters more |
| Weather | Poor when wet | Strong in rain and humidity |
| Pests and mold | Risk in humid storage | Minimal |
| Lifespan (casual play) | Wears faster as dust and moisture build | Holds up longer in outdoor storage |
| Maintenance | Dry storage is critical | Low; wipe down after rain |
| ACA tournament | Allowed (corn or resin pellets) | Allowed |
| ACL sanctioned | No (approved list is resin only) | Required path for competitive play |
| Typical retail anchor | cornhole.com ~$30 eight-pack corn | Pro and all-weather resin lines from bag makers |
How fill interacts with fabric and weight
Duck cloth weight and dual-sided slick or stick faces change slide speed more than fill alone. A cornhole.com corn set uses 10oz duck cloth; many recreation bags use lighter weaves. The Cornhole Exchange plans matched sets with eight dual-sided bags in 6oz duck cloth, one slick side and one stick side, filled to a regulation 1lb with resin pellets. More on that fabric choice is on the materials section of the homepage.
Fill still has to land inside the weight band your league follows. ACA lists 14 to 16.25oz on its regulation product page. ACL targets 16oz with a 15.5oz to 16.5oz tolerance. Thickness differs too: ACA about 1in versus ACL 1.1in to 1.5in, which affects how a bag sits in the hole. For count, size, and weight in one place, see the regulation count and weight guide.
ACA vs ACL: fill rules that actually matter
American Cornhole Association: Published regulation bags allow corn or resin pellets as filling, alongside fabric and seam standards on ACA rules pages.
American Cornhole League: Inside material may be anything that does not damage the board or leave residue, but ACL Rules & Regulations prohibit bags with holes where plastic resin can leak. You may not add or remove resin after purchase, which rules out home "adjustments" to weight.
If you are not sure which body runs your league or fundraiser, the ACL vs ACA vs backyard rules guide walks through how to pick a standard before you buy bags.
Choosing fill by use case
Backyard and tailgate with indoor storage: Corn can work if you dry bags after rain and accept that feel will change as dust builds. Resin is the simpler default if you do not want to babysit storage.
Patio, shed, or brewery deck: Humidity and pests push most people toward all weather cornhole bags with resin fill. Bags that live outside on a taproom patio see the same rain and late-night humidity as a home shed.
League or ACL bracket: You need resin bags from the current ACL approved manufacturer list, not generic "regulation" corn fill from a big-box listing. The best pro cornhole bags by skill level guide covers stamp tiers once you know resin is the path.
Wedding or gift sets that may sit in a garage: Matched colors plus resin fill avoids the musty corn smell if the set waits months before first use.
Venues running two courts: Plan identical spare sets per court so rotation mid-event does not change slide or weight. Resin consistency helps when bags swap between boards during a bracket. Bulk and lead-time questions for breweries and event planners live in the site FAQ.
Storage and care by fill type
Corn: Store in a breathable bin with moisture absorbers. Never seal wet bags in a tub. Retire bags that clump or smell off; weight gain from water throws off your throws and can push a bag outside ACA or ACL weight bands.
Resin: Wipe dry after rain. Avoid punctures. ACL leak rules are why you should not stitch home repairs that open the pellet chamber. Replace a leaking bag instead of patching it.
During real frames, throw order and foul-line rules still apply no matter what is inside the bag. The official cornhole rules guide covers frame flow if you are comparing fill feel during live play.
Common fill mistakes
| Mistake | Why it hurts | Fix |
|---|---|---|
| Storing wet corn bags in a sealed tub | Mold, weight gain, smell | Dry thoroughly for a day or two; switch to resin for outdoor storage |
| Mixing corn and resin in one eight-bag set | Slide and weight vary throw to throw | One fill type per matched set |
| Puncturing resin bags to "adjust" weight | ACL illegal; leaks resin on boards | Replace the bag; do not alter fill |
| Buying "regulation" without reading the fill line | Wrong weight or carnival mini size | Read fill type and ounce line on the listing |
| Showing up at ACL night with corn-filled bags | Not on the approved manufacturer list | Check the BYOB bag list; see the skill-level guide |
Matched sets and what comes next
The Cornhole Exchange builds eight dual-sided 6oz duck cloth bags at regulation 1lb resin fill on matched board orders. The in-browser Design Studio, where you will pick builds, colors, and artwork with a live preview, is still in development. When ordering opens, matched resin sets will pair with boards built to ACL and ACA board specs so fill matches fabric on every set.
Once you know what is in cornhole bags and have picked a fill type, settle count and weight specs in the how many cornhole bags regulation guide. More regulation and materials articles are on the blog.
