SKU: 79944286524

Roman Arch STEM Box (Ages 5 & Up, With Adult Supervision)

Sale price$24.25 Regular price$26.95
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Roman Arch STEM Box (Ages 5 & Up, With Adult Supervision)Amazingly Easy to Build yet Very Strong! Most people have heard of the famous "Roman Arch." You can see them in great architecture such as the Colosseum in Rome and bridges and other vital infrastructure around the world. For most people in Canada, however, they are something foreign and ancient. Ask the average person in North America: "Have you ever built a Roman Arch"? The answer for virtually all of us is no. With this STEM Box, we aim to change

Amazingly Easy to Build yet Very Strong!

Most people have heard of the famous "Roman Arch." You can see them in great architecture such as the Colosseum in Rome and bridges and other vital infrastructure around the world. For most people in Canada, however, they are something foreign and ancient. Ask the average person in North America: "Have you ever built a Roman Arch"? The answer for virtually all of us is no.

With this STEM Box, we aim to change that. Stop missing out. Build your own Arch!  We supply everything you need. It's remarkably easy to do with the materials supplied in this STEM Box:

(1) Correctly shaped and pre-made "voussoirs" (stones) (plus we add two extra for a total of 11)*;

(2) A simple, pre-assembled wooden frame that provides abutments on both sides to support the arch;

(3) A centring - in the form of 2 quarter-circles (the temporary structure upon which you lay the stones of the arch during construction); and

(4) An informative and proprietary S.T.E.M. Store of Canada information sheet that provides step-by-step instructions and additional background information on arches and how they work.

We make all of these STEM Boxes by hand in Canada and perform quality checks on each one to ensure that they assemble easily and accurately.  We have used very safe materials in preparing these STEM Boxes (wood, school-safe glue, etc.).

Recommended for Age 5 & Up (with adult supervision).

Notes:
(1) The stones included with this STEM Box are all identical. Any one of these stones may function as the famous “Keystone” (being the final piece placed during construction that locks all the stones into position, allowing the arch to bear weight)!

(2) The Loonie coin (not included with the STEM Box) is displayed in some of the pictures to give you a sense of the size of the Arch.

(3) We tried placing a 15-pound weight on top the arch - it held it up no problem (you can see there was no cheating involved)! Can you do the same? Maybe you can achieve even more weight?

For excellent overviews of how arches work, check out these YouTube videos:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79944286524

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4.7 ★★★★★
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Cathy
Charlottesville, US
★★★★★ 5
Stylish & sturdy 3 floating shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
I bought these 12-inch deep floating shelves for my son’s room and they turned out great. The extra depth makes a big difference compared to standard floating shelves. He’s able to fit books, trophies, and some of his collectibles on them without everything feeling cramped. The shelves feel sturdy and well made once installed. The hardware that came with them worked well, and they sit flush against the wall which gives that nice clean floating look. They really helped add storage while also making the room look more organized and put together. I added lights underneath which I also bought here on Amazon... I also like that they’re deep enough to actually be functional, not just decorative. My son is using them every day and they’re holding up really well. Overall I’m very happy with this purchase and would definitely buy them again for another room.
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Reviewed in the United States on March 12, 2026
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Verified Purchase
James Garcia
Lake Worth, US
★★★★★ 5
Good looking shelves
Size: 11.6"D x 15.7"W, Color: Black, Size: 11.6"D x 15.7"W, Color: Black
These shelves turned out perfect for my bedroom project! I read lots of reviews about people having trouble with the wall anchors not holding up, but I’m going to equate that to user error. I had no trouble installing these and even took a couple shortcuts. I only used two wall anchors per shelf, but also pre checked the holes for studs. I used one dry wall screw per shelf as well. Knowing how wall anchors can be, I used one drill bit size smaller than the directions suggested. They said use 1/4, but I used 15/64. Probably could have gotten away with one smaller than that at 7/32. With all screws, I made sure not to press too hard into the wall and just turn the screw. That helps the anchors and threads stay snug in the dry wall. There was only one shelf that came out feeling a little saggy, but I think it’s because the holes in the shelf are not quite right. However, it still holds strong and no problem with a box of shoes on it. All this being said, I pre weighed my shoe boxes and knew I only needed to hold about 5-7 lbs. I was super detailed with measuring the bracket spots to make sure everything was spaced and leveled appropriately. The wood on the shelves does feel a little cheap, but it looks great so I couldn’t care less. I would purchase these shelves again and might have to as my display collection continues to grow.
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Reviewed in the United States on March 20, 2026
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KREY
Fort Morgan, US
★★★★★ 5
Easy install, wide and sturdy
Size: 10"D x 15.7"W, Color: Brown, Size: 10"D x 15.7"W, Color: Brown
I put these shelves in a strange little cubby that was created in my kitchen by removing the sad excuse for a pantry that was once there. Super easy to hang, I’ve only hung two here and have other plans for the 3rd one. Good purchase for sure. Very sturdy and look expensive, without the high cost.
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Reviewed in the United States on December 20, 2025
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Verified Purchase
Tyra Church
Los Angeles, US
★★★★★ 4
Great shelves!
Size: 12"D x 35.4"W, Color: Black
These were perfect for what I needed & easy to install with included hardware; looks great and looks like quality item. I like that they will hold 20 lbs so I can change what I place on them with no worries.
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Reviewed in the United States on November 10, 2025
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Stephanie L Trott
Massapequa, US
★★★★★ 5
Easy installation
Size: 11.6"D x 15.7"W, Color: Black
Nice and sturdy
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Reviewed in the United States on May 20, 2026

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