







🏰 Build big, play bigger — your castle awaits!
The National Geographic Jumbo Cardboard Building Blocks set features 45 extra-thick, durable cardboard pieces designed for safe, secure, and creative indoor play. Perfect for kids to build custom castle playhouses, it includes a drawbridge, crowns, and an educational guide, fostering imagination and learning in a large, lightweight kit.





| Item Weight | 9.74 Pounds |
| Size | Large |
| Style Name | 45 Piece |
| Theme | Castles |
| Color | Grey |
| Material Type | Cardboard |
C**E
Don’t bother looking any further, BUY THESE NOW!!!
We got these as a birthday present for my daughter who loves building with blocks and wanted something bigger. SHE ABSOLUTELY LOVES THEM!!!! She plays with them all the time and has a blast! The color/stones are perfect, so so much better than the basic blue, red, yellow bricks I used to play with as a kid. My daughter is 3 and has stepped on a few of them before and had no issue with them breaking or deforming so I would say they are pretty durable. They stack well and you can make a different set up every time you play. I love that some of them have windows with torches on them and that there are four different sizes included (big rectangle, smaller rectangle, square, and triangle!!!). The set also came with two paper crowns, a jaw bridge (cardstock and high quality), and a little card with information about medieval castles in Europe!They do come flat and need to be assembled which was a little time consuming, but the instructions were easy to follow and once you get the hang of it you can breeze right through the building process.I HIGHLY recommend these over the normal, boring blue, red, yellow cardboard blocks- you won’t be disappointed. The way my daughter’s imagination runs wild while building with these brings me so much joy. To me these were definitely worth the money that we paid and I would do it again and again!!!
S**U
Great, strong design!
Very sturdy blocks! Took me an hour to build them but my hefty 4yo used them as 'skates' and they held up perfectly! I like that they give tons of the blocks with designs on it instead of just plain castle walls. I bought two sets but the one made so many blocks I havent even opened the second set yet.
M**L
Engaging toy for prek class
Perfect for my PreK class. Used with neurodiverse students ages 4-5 during our castle/fairy tale unit.
S**.
It's cardboard but still pretty cool
This is a pretty cool set that toddlers will love if they like building things. Just keep in mind that all of these blocks are made of cardboard but the cardboard is thick and folding them according to the instructions is kind of tedious but keeps the integrity of the structure. These should be kept indoors only and because it is cardboard I don't think they'll hold up over time but we'll have to see.
J**J
Great size for little hands
My preschool kiddos loved this blocks during our fairy tale theme. They are easy to use and held up to 18 2-4 year olds. They really enjoyed the size of these blocks and spent quite a bit of time building castles.
R**C
Endless possibilities with these fun, durable cardboard blocks!
I am very impressed with these cardboard blocks. We have used a different brand of cardboard blocks before, but these are thicker cardboard, sturdier construction and slightly larger. I love the castle theme and variety of pieces that are included. One set is enough to build a sizeable castle wall. Assembly was simple with the included instructions. We had a convenient place to store ours, but once folded, they will not easily be unfolded to store flat, so keep that in mind when purchasing.
S**A
So let's talk National Geographic!
So caught this on a deal! Ordered two sets to give my son more building blocks and play. The idea to purchase two sets had turned out to be a good one, we have managed to build many castles with them and unimaginable play time. This stimulates the imagination for him and we love it! I built the two sets of blocks Christmas morning in around an hour. They are built like banker boxes so don't look at the folding instructions and get discouraged because these are made to last and once you build one they are much easier from that point forward! My son is 50 lb + and standing on these doesn't even phase them! If you need quality when buying cardboard blocks these really are perfect.
A**.
Fun blocks
Excellent!!
Trustpilot
4 days ago
2 weeks ago