Wooden stacking blocks, sold under names such as Jenga, are found in homes all over the world. This challenge turns the game into a record: how tall a tower can one person build from a single set of 54 blocks?
It takes planning as well as steady hands, because a taller design is usually less stable. The Book of World Records certifies the record in four age groups. If no record exists yet in your group, reaching the minimum on this page sets the first one.
Rules
- One set of 54 standard wooden blocks (about 7.5 cm x 2.5 cm x 1.5 cm each). Extra blocks are not allowed.
- Blocks may be placed in any direction, but they may not be glued, cut, wedged with paper or fixed in any way.
- The tower is built on a flat table or floor by one person alone.
- Building time: 10 minutes.
- After the time ends, the tower must stand without being touched for 10 seconds.
- The height is measured from the surface to the highest point of the tower.
How it is measured
After the 10-second check, the height is measured on camera with a tape measure held upright beside the tower. Show the reading in close-up.
The blocks are counted on camera before the attempt to show that there are exactly 54.
Evidence you will need
- One unedited video of the count, the build, the 10-second check and the measurement.
- A close-up photo of the tape measure reading at the top of the tower.
- Signed statements from two independent witnesses (not family members), with their names and phone numbers.
- Proof of date of birth for age-group titles, such as a birth certificate or school ID.
After you apply, our team confirms the exact list for your attempt by email.
Safety
- Build on a stable surface and keep small children away from a falling tower.
- Participants under 18 need written consent from a parent or guardian.
For schools and organisations
Families and schools can run a tower-building contest and submit the best result as an individual record. A team title such as "Tallest tower built by a team from 1,000 stacking blocks" can be proposed when you apply.
Questions
Can I use more than one set of blocks?
Not for this title. It allows exactly one set of 54 blocks. Larger towers can be proposed as separate titles.
Does the tower have to be playable like the game?
No. Blocks may be placed in any direction, as long as nothing holds them together except balance.
Can I attempt this at home or at school?
Yes. Block tower records can be certified from an unedited video, as long as two independent witnesses are present and the rules on this page are followed.