What are Big Rocks? Covey's Metaphor for Scheduling Priorities First

Big rocks are your most important tasks and commitments — the ones that actually advance your goals — in Stephen Covey's famous jar metaphor. In his demonstration, a jar is filled with big rocks, gravel, sand, and water. Fill it in that order and everything fits. Start with the sand and gravel — the emails, errands, small urgencies — and the big rocks never go in.

The lesson: if you don't schedule your priorities first, other people's priorities will fill your week for you. The jar is your calendar; its capacity is fixed; only the order of filling is under your control.

What Counts as a Big Rock?

A big rock is defined by importance, not size or urgency. In Eisenhower matrix terms, big rocks live in Quadrant 2 — important but not urgent: the proposal that grows the business, the training that grows you, the recurring exercise slot, the difficult conversation you keep deferring, the weekly review itself. Nothing about them demands this week — which is exactly why they lose to gravel unless deliberately placed.

Covey's refinement in First Things First: choose big rocks per role. As a manager, a maker, a parent, a friend — one or two rocks each. This prevents the common failure where work rocks fill the jar and life gets the sand. (Full context in our guide to Habit 3: Put First Things First and the 7 Habits hub.)

How to Plan with Big Rocks

1. Weekly, pick 3–5. More than five big rocks means none of them are. Choose during your weekly planning session, looking at goals and roles — not at the inbox.
2. Schedule them first. Real calendar blocks, early in the week where possible. A big rock without a time slot is a wish.
3. Let gravel fill the gaps. Small tasks are batched into the spaces between rocks — never the reverse.
4. Review and repeat. At week's end, count the rocks that actually happened. That number, tracked over a month, tells you more about your effectiveness than any productivity score — though our weekly productivity calculator will happily give you one too.

This loop — rocks per role, scheduled first, reviewed weekly — is the workflow Week Plan was built around; the app calls them High Impact Tasks.

Related terms: Eisenhower Matrix · Weekly Review · Most Important Task Method