If you're staring at a massive pile of logs in the back of a trailer or stacked up against a fence, you're probably asking yourself what's the measurements of a cord of wood so you don't end up paying for more than you're actually getting. It's one of those things that sounds simple until you're standing in a muddy driveway trying to do mental math while a guy in a truck waits for his check. To keep it short and sweet right off the bat: a standard, "full" cord of wood measures 128 cubic feet.
Now, if you want to visualize that in a way that actually makes sense, think of a stack that is 4 feet high, 4 feet wide, and 8 feet long. That's the gold standard. If the wood is stacked neatly and tight, and it hits those dimensions, you've got yourself a cord. But as anyone who has heated their home with a woodstove knows, it's rarely that straightforward once you start talking to different sellers.
Breaking Down the 128 Cubic Feet Rule
When we talk about that 128 cubic feet, we're talking about stacked wood. This is a big distinction. You can't just toss a bunch of logs into a heap, measure the height of the pile, and call it a day. Well, you can, but the measurements will be all wrong because of the massive air pockets between the logs.
To get a true measurement, the wood has to be "ranked and well-stowed." That's just a fancy way of saying the logs are laid parallel to each other, tucked in tight, with as little air space as possible. If you've got big, gnarly, twisted oak branches, they're going to have more air gaps than straight-cut pieces of pine, but the overall dimensions of the stack remain the same.
The "Face Cord" Trap
This is where things usually go south for people who are new to buying firewood. You'll see an ad on the side of the road or on Facebook Marketplace that says "Cord of Wood - $100." You think you've hit the jackpot because everyone else is charging $300. You call the guy, he drops it off, and you realize it's a tiny little pile that wouldn't last a week in a blizzard.
What you likely bought was a face cord.
A face cord isn't a legal unit of measurement in many places, but people use it all the time. A face cord is usually 4 feet high and 8 feet long, but the depth is only as long as a single log. Since most people cut their firewood to about 16 inches, a face cord is basically one-third of a full cord.
So, if you're comparing prices, always ask the seller if they're talking about a "full cord" or a "face cord." If they seem shifty about it, or they say something like, "it's a cord as it sits," you're probably getting the short end of the stick.
Common Face Cord Dimensions
- 4' high x 8' long x 12" deep: This is a very small face cord (about 1/4 of a full cord).
- 4' high x 8' long x 16" deep: This is the most common size (1/3 of a full cord).
- 4' high x 8' long x 24" deep: This is rare, but it would be 1/2 of a full cord.
Can Your Pickup Truck Haul a Cord?
I see this all the time. Someone rolls up to a wood lot in a standard Ford F-150 or a Chevy Silverado with a 6.5-foot bed and tells the guy to "fill 'er up" with a full cord. I hate to be the bearer of bad news, but unless you've built some seriously tall wooden side-rails and you're tempting fate with your suspension, you aren't fitting a full cord in a standard pickup.
A standard 8-foot "long bed" pickup truck, filled level to the top of the bed rails, holds about half a cord (roughly 64 cubic feet). If you have a short bed (6 feet), you're looking at even less—maybe 45 to 50 cubic feet.
To actually get a full 128 cubic feet into a pickup, you'd have to stack it well above the roofline. Not only is that a great way to get pulled over, but firewood is heavy. A full cord of seasoned oak can weigh over 3,500 pounds. Most half-ton pickups aren't rated to carry that kind of weight in the bed. If the wood is green (wet), it can weigh over 5,000 pounds. Your truck will not be happy with you.
Why the "Thrown" Cord is Different
Sometimes, you'll buy wood that is delivered and "thrown" into a pile from a dump truck. The seller might tell you it's a "thrown cord." Because the wood isn't stacked, it takes up more physical space because of all the random angles and air gaps.
A common rule of thumb is that a thrown cord should occupy about 180 cubic feet to equal a 128-cubic-foot stacked cord. If a guy shows up with a small trailer that's only 100 cubic feet and claims it's a full cord because it's "loose," he's trying to pull a fast one on you.
Does the Type of Wood Change the Measurement?
Nope. Whether it's balsa wood or heavy hickory, the measurements of a cord don't change. However, your satisfaction with that cord definitely will.
A cord of willow or poplar will weigh a lot less and burn through in a heartbeat. A cord of white oak or locust will be incredibly heavy and burn for hours. This is why people are willing to pay a premium for hardwoods. You're getting the same volume (that 128 cubic feet), but you're getting significantly more energy (BTUs).
How to Check Your Delivery
When the wood gets delivered, don't just point to the driveway and say "thanks." If you really want to be sure you aren't getting scammed, you have to stack it.
I know, it's a lot of work. But it's the only way to know for sure. Stack it up against a fence or between two posts. Once it's all neat and tidy, grab your measuring tape.
Multiply the Height x Width x Length.
If you have 4 feet high, 4 feet wide, and 8 feet long, you get 128. If your numbers are different, just multiply them out and divide by 128. For example, if you have a stack that is 4 feet high, 2 feet wide, and 12 feet long: * 4 x 2 x 12 = 96 cubic feet. * 96 / 128 = 0.75.
In that case, you only got three-quarters of a cord. If you paid for a full cord, it's time to have a polite but firm conversation with your wood guy.
A Few Tips for Accurate Stacking
To make sure your measurements are fair to both you and the seller, keep these things in mind:
- Keep it level: Don't let the stack "mound" in the middle. Try to keep the top as flat as possible so your height measurement is consistent.
- Watch the gaps: Don't "log cabin" the ends (stacking them in alternating directions) unless you have to for stability. This creates extra air space that shouldn't really be there if you're trying to get an honest volume count.
- Ground clearance: Ideally, stack your wood on pallets. It keeps the wood dry, but it also gives you a nice flat base to measure from. Just remember not to include the height of the pallet in your "4 feet high" measurement!
Final Thoughts
At the end of the day, knowing what's the measurements of a cord of wood is your best defense against getting ripped off. Most firewood sellers are honest folks just trying to make a living, but mistakes happen, and "cords" are often estimated rather than measured.
Remember: 128 cubic feet is the magic number. If you keep that in mind, along with the 4x4x8 visualization, you'll be in great shape for the winter. Just make sure you have a good pair of gloves and maybe a friend to help you stack it, because 128 cubic feet of wood is a lot more than it looks like when it's sitting in a heap on your lawn!