Anyone considering a cargo bike wants to be sure of one thing above all else: will my daily load fit inside? With a cargo box measuring about 100×70 cm, you can carry a surprising amount, but it helps to be able to “visualize” it using concrete examples.
In this article, you'll find a practical answer to the question What fits in a 100-cm cargo bike box?. We translate centimeters into relatable messages, bags, children's items, and DIY supplies, including tips on how to use space efficiently.
Starting point: What does 100×70 cm mean in practice?
A container that is 100 cm long and 70 cm wide feels roughly like a wide trunk floor, but with raised sides. Its usability depends not only on the floor area, but also on the height of the bin, its shape (rectangular or tapered), and whether it contains a bench or accessories.
To help you visualize this, you can mark out a rectangle on the floor at home using tape: 100 cm by 70 cm. Then place the items you often take with you inside it; you’ll immediately see where the bottlenecks are.
Also consider height and “stacking space”
Most everyday items aren't flat. Grocery crates, school bags, and gym bags can easily reach a height of 30–45 cm, and sometimes you want to fit a jacket or another bag on top of that.
That's why it's helpful to think in layers: heavy and stable items at the bottom, light and soft items on top. You can also secure the stack with a strap or luggage net when going over bumps or around curves.
Quick rules of thumb for estimating your load
If you want to quickly determine whether something fits, these rules of thumb will help. They aren't mathematically perfect, but they work well for planning.
- 100 cm in length: Elongated items up to about 1 meter will fit flat, provided the bin is straight and there is no bench in the way.
- 70 cm wide: Two standard grocery bags usually fit side by side, often with room left over for an extra bag or a coat.
- You can stack them high: With soft items, you can work “over the edge,” as long as they’re securely fastened.
- Bench or seat: Bringing kids along means you'll be sharing your floor space with feet, bags, and possibly a car seat.
Daily routine: grocery shopping and household chores
For many people, the cargo bike is a substitute for the car when going to the supermarket. With a 100×70 cm cargo box, you can usually carry a substantial week’s worth of groceries, especially if you stack them smartly.
Example: A typical trip to the supermarket
Think of a combination of bags and crates. In practice, the following often works (depending on the height of your container):
- 2–3 full shopping bags (e.g., 20–30 liters per bag)
- 1 crate of soda or several cartons of milk at the bottom
- A large bag of potatoes or animal feed (10–15 kg), laid flat on the floor
- Loose items such as bread, fruit, and eggs on top
Tip: Place heavy bottles and packages in the center and at the bottom. This keeps the bike more stable and prevents them from shifting.
Example: bulk and large packages
Do you buy from a wholesaler or pick up a large quantity at once? If so, it helps to think in terms of “blocks.” A 100×70 cm floor is large enough to fit several rectangular boxes, as long as you stack them like a puzzle.
- A large box of diapers plus a box of paper towels
- Several trays of cans (stackable) with a bag on top
- A jerry can of cleaning solution (secure it tightly)
Children and School Supplies: What Goes Well Together?
The question “What fits in a 100-cm cargo bike box?” becomes especially relevant when you’re transporting both children and belongings at the same time. The available space is then determined by seating, legroom, and whatever else you can fit in there.
With one child
With just one child on a bench, there’s often plenty of room left for bags. You can usually bring the following without any trouble:
- 1–2 school bags or backpacks
- Gym bag and lunchbox
- A rain suit or an extra jacket
- A small step (depending on the handlebars/height; sometimes place it at an angle)
It's handy to have a bag hook or storage pocket on the side, so bags don't end up underfoot.
With two children
With two kids, the car is still practical, but the “free floor space” is getting smaller. Often, there’s still room for:
- 2 school bags (preferably placed upright against the wall)
- A grocery bag or gym bag between your legs
- A compact children's bike helmet or two (hanging on a hook)
If you're carrying a lot, it's a good idea to place the bags vertically and secure them with a strap so they don't tip over when you lift them.
Home, Garden, and DIY: Tools and Hardware Store
A 100×70 cm bin is also popular for small jobs. You don't have to lay everything flat; some items can be placed on their side or upright, as long as they're secured safely.
Example: trip to the home improvement store
This kind of combination often works well:
- A bucket or two of paint (thin and stable)
- A roll of plastic sheeting, tape, and brushes
- A small toolbox
- A folded stepladder or stool (placed at an angle)
For longer slats or tubes (around 1 meter), 100 cm is ideal, but make sure the inside of the box is truly straight and that there isn’t any curvature that “eats into” the length.
Garden supplies and yard waste
Garden waste is bulky but light. That’s exactly why you can take advantage of the stacking height.
- 2–3 bags of potting soil (usually 40 liters) as a base
- Above: pruning waste in a big bag or reusable yard waste bag
- Small tools such as gloves, pruning shears, and a small shovel
For loose branches, use a net or strap to prevent them from “spreading out.”.
Sports, Leisure, and Weekend Use
In addition to commuting to work and school, carrying leisure items is a major reason to choose a cargo bike. A 100×70 cm cargo box is often large enough for gym bags and picnic supplies, but less so for large, rigid objects.
Picnic and Beach
- Cooler Bag
- Picnic blanket
- 2–4 beach towels
- Toys (bucket, shovel, ball) in a crate
If you're visiting nature reserves, be sure to check the local rules regarding biking and trails. For general information about access and codes of conduct in nature reserves, the government's website is a useful starting point: The National Government on Nature and Biodiversity.
Sports Training
Think of soccer, field hockey, or fitness. These usually fit without any trouble:
- 2 gym bags
- A bag of balls or a single ball
- Water bottles, shoes, and jackets
Hockey sticks or other long items sometimes need to be placed at an angle or partially above the edge. In that case, make sure they are securely fastened and be mindful of any protruding parts when driving.
What doesn't work as well? Common estimation errors
With a 100×70 cm container, most misunderstandings involve “rigid” objects. You can stack boxes, but a hard object with a fixed shape must fit exactly.
- Wide strollers: A stroller usually works, but a large double stroller is usually too wide or too tall.
- Large crates: Some plastic crates are just over 70 cm wide, including the handles.
- Bike in the trunk: A children's bike rarely fits neatly flat; sometimes a balance bike or scooter will fit at an angle.
- Tall plants: A large houseplant might fit, but it's sensitive to drafts and can tip over.
If you regularly transport items like these, it’s a good idea to use a measuring tape and also take into account the interior dimensions between any edges, benches, or reinforcements.
Handy accessories to get more out of a 100×70 cm space
Accessories make the same container more versatile. You don’t gain any actual centimeters, but you do gain useful “organization” and stability.
- Luggage net or tie-down straps: essential for stacked cargo and loose items.
- Side storage compartments: perfect for a lock, rain pants, and small items.
- Crate System: 1–2 fixed crates make loading and unloading faster.
- Rain cover or tarp: keeps bags dry and prevents paper items from getting soggy.
Here's how to test at home what fits in your 100 cm tank
Want to make sure your daily setup works? Do a simple “dry run” with the items you already have.
- Mark out a 100×70 cm area on the floor.
- First, put down the heavy items (crates, bottles, food).
- Next, add bags, coats, and other loose items.
- Only stack items that you can secure safely.
Make a note of which items are always difficult to pack. That will give you immediate guidance: different crates, a net, or a different packing method.
Conclusion: 100×70 cm is more than enough for everyday life
A 100×70 cm container is just the right size for many trips. Groceries, school bags, sports gear, and small DIY supplies usually fit well, especially if you stack and secure them carefully.
Would you like help choosing a cargo bike configuration that suits your family and your most common cargo needs? Then check out the options at StoerBikes Feel free to contact us for advice tailored to your specific needs.