Lumberjack Stack

Choose this exercise

Purpose: Coordinate physical positioning and timing across a group without equipment.

Use it when: Use as a rapid physical warm-up or energizing reset between seated agenda blocks when participants are comfortable with light hand contact.

Skip it when: Skip when participants prefer no physical touch, when infection control policies restrict handshakes, or when participants have wrist, hand, or shoulder mobility constraints.

Group arrangement: Starts in pairs (with one trio if odd-numbered), expands into balanced teams of 3 to 6, then combines into one circle.

Timing: UWT suggested 8-minute progression; source notes under 5 minutes.

Materials and tools

• Open floor space clear of chairs and obstacles

Before participants arrive

1. Clear an open floor space where the entire group can stand together in a tight circle.

Say this to open

We are going to build a shared hand tower called a Lumberjack Stack. First, find one partner nearby. If we have an odd number, one group will form a trio. We will practice the basic grip together.

How to run it

1. Demonstrate the Lumberjack grip 2 minutes

   Demonstrate the grip with a volunteer. Person A makes a fist with thumb pointed upward. Person B grasps that upright thumb, pointing their own thumb up. To build a four-hand tower, Person A wraps their second hand around Person B's thumb, and Person B caps the stack with their second hand. Pairs practice this four-hand tower, release, and repeat with a new partner. Trios rotate turns to build six hands. Anyone opting out of contact serves as a Stack Architect.

2. Build small group stacks 3 minutes

   Combine pairs into groups of 3 to 6 participants. If the total count leaves an awkward remainder or a single group under 8 (such as 7 participants), run one combined group or invite participants to serve as Stack Architects. Each group stacks hands in an alternating vertical column until everyone contributes both hands. Stack Architects call balance adjustments, count total hands placed, and confirm vertical stability.

3. Attempt full room stack 2 minutes

   Gather everyone into a single close circle. The group attempts to build one unified vertical hand stack using both hands from every participating member. Stack Architects observe from the perimeter to signal balance corrections, count hands, and declare when the tower reaches a stable freeze. Stop immediately if someone loses balance or releases their grip. Allow up to two quick attempts.

4. Debrief coordination 1 minutes

   Conclude the physical challenge. Ask two brief debrief questions to the room and take two volunteer responses before transitioning.

Debrief questions

• What adjustments did the group make as the tower grew taller and less stable?
• How did you manage physical reach and balance when everyone joined the central stack?

Finished output: A completed multi-hand tower involving all participating group members or an intentional collective decision to stop.

Remote

This activity requires physical hand contact and cannot run online without changing into a completely different exercise. For fully remote teams, select an exercise designed specifically for video platforms instead.

Hybrid

In-person attendees perform the physical hand stack. Remote attendees participate as Stack Architects over video, directing tower balance via audio, counting placed hands, and signaling when the tower holds a stable freeze.

Access and participation choices

• Offer the non-contact role of Stack Architect, directing tower balance, counting hands, and checking stability without physical touch.
• Participants may step back, lower their arms, or release their grip at any moment without explanation.

If the session gets stuck

Taller stacks pull people off balance or strain shorter participants' arms.

Lower the base of the tower toward waist height by having participants bend their knees or place the foundation hand on a sturdy table.

Someone prefers not to touch others or cannot grasp firmly.

Introduce the Stack Architect role before the demonstration so stepping back into observation and direction is normal and immediate.

Terms used here

• Lumberjack grip: A thumb-up fist grasp where the next person's fist wraps around the upright thumb below it.
• Stack Architect: A non-contact participant role responsible for monitoring tower balance, counting placed hands, and confirming stability.