

🏰 Build dreams, spark genius, and never miss out on the ultimate fort adventure!
The Fort Building Kit is a 140-piece STEM construction toy designed for kids aged 4-12. Featuring a unique connect system with magic balls and rods, it enables quick, sturdy builds of forts, castles, and more. Crafted from durable, safe ABS plastic and certified to US toy safety standards, this kit promotes creativity, problem-solving, and teamwork. Perfect for indoor and outdoor play, it’s an ideal educational gift that transforms playtime into an inspiring engineering experience.





| ASIN | B0B87X7W6L |
| Additional Features | Sturdy |
| Age Range Description | Kid |
| Best Sellers Rank | #2,640 in Toys & Games ( See Top 100 in Toys & Games ) #166 in Toy Building Sets |
| Brand Name | SpringFlower |
| Color | Red |
| Customer Reviews | 4.4 out of 5 stars 1,671 Reviews |
| Educational Objective | Creative Thinking, STEM |
| Item Dimensions | 5.12 x 6.38 x 9.06 inches |
| Item Height | 23 centimeters |
| Item Weight | 2.9 Kilograms |
| Manufacturer | SpringFlower |
| Manufacturer Minimum Age (MONTHS) | 48.00 |
| Material Type | Acrylonitrile Butadiene Styrene |
| Model Name | SFFORT3RD |
| Model Number | SFFORT3RD |
| Model Year | 2022 |
| Number of Pieces | 140 |
| Size | Large |
| Theme | Transportation |
| Toy Building Block Type | Interlocking Toy Building Block |
A**N
Best Christmas Gift - Fun & Creative!
BEST Christmas gift for siblings! Our kids are always wanting to build forts. The pieces are easy to use, allow them to be creative and make whatever they want and they can cover the fort with a sheet & it will stay together! I don’t worry about items following over - super safe and sturdy!
L**K
Great toy!
I was honestly really surprised how well my kids figured out how to build the designs in the book it comes with. This is so much fun for them! I can tell it’s educational by how hard they focus on it and it’s easy enough for them to assemble themselves.
D**D
Love these!!!
It’s funny when people say these are flimsy. Sure, PVC pipe or wood would be more stable and long-lasting, but you’d lose the versatility. Sometimes the straight connectors come apart, but they’re easy to hot glue if you want them to hold better. This isn’t meant to replace a treehouse—it’s meant to replace sticks and furniture in the fort-making process. And honestly, it’s way sturdier than anything my kids have built on their own. I let them take the lead on the design, then step in to make sure it’s structurally sound and then we usually keep it up for a day or two. I really love the creativity it encourages and the fun memories they make in their forts.
C**R
Cool, but cheap
Fun for kids but the poles aren't very sturdy. We have another brand and they are made much better. We'll see if these stand up over time.
S**V
Great purchase to keep kids from playing with furniture.
Works as expected. The kid loves building with castles and towers. Two plastic hubs fell apart at seams but I easily glued them together. Overall great purchase and I ordered two more sets.
R**S
Easy to repair loose sides when they become detached. Easy instructions on basic forts.
This was a Christmas surprise for my son. We out it together pretty quick. I had to go back and read the instructions about the arrows on the balls, but attention to that small detail didnt hold us back. We constructed the spaceball, he has blown out a side when sleeping, so I bought a 2nd set. Easy to fix. He can do repaors easily by himself. Next build is to make a double wide after the additional kit arrived today. This has kept him feeling safe in a huge bedroom, after getting his own room. No more night wakes and wandering.
M**N
Fun toy with one disappointing educational mistake
This is a fun toy to watch the kids play with. It's a neat challenge to try to build any of the forts on the instructions, and they also love being creative and making up their own forts. I have a huge nitpick about the angle descriptions, however. The instruction manual lists several connectors at 135 degrees, and this is wrong. The spheres can accommodate 135 degree connections, as they can easily be used to make octagons (and 135 degrees is the internal angle of a regular octagon). However, the connector pieces cannot, because they're not 135 degrees; they're 120 degrees - the internal angle of a regular hexagon. So you can use the connectors to make hexagonal shapes, which is fine. You just can't use them interchangeably with the spheres to make huge octagons, which is also fine. It's just disappointing that the instruction manual labels those connectors as 135 degrees, when they're actually 120. Putting the pieces together is fun, but part of a the allure of a STEM toy is that you can learn about the math & science behind the fun as well. With a toy like this, that means understanding the angles. I would love for them to update the documentation so that the kids who play with this toy can also learn about the geometry behind it.
S**.
Love this.
Got this for my grandson and he loves it. Loves making tents and rockets. Easy to put together and durable pieces.
Trustpilot
2 months ago
2 weeks ago