How to Do Depth Jumps: Box Height, Contact Time, and a Safe Progression

To do a depth jump, stand on a box 12-18 inches high, step off — never jump up or out — land softly on the balls of both feet, and explode straight back up the instant you touch the ground. The entire ground contact should last under a quarter-second. Done this way, the depth jump trains reactive strength: your tendons load like a spring on landing and release that energy into a bigger, faster jump. It is an advanced drill, so the technique, box height, and progression below assume you build a base first.

What a Depth Jump Actually Trains

A depth jump develops the stretch-shortening cycle — the rapid load-and-release that lets a stretched tendon return stored energy. When you drop off the box and hit the floor, your calves, quads, and glutes absorb force eccentrically, then fire concentrically to launch you back up. The shorter and stiffer that transition, the more “free” elastic energy you keep.

That reactive quality is different from raw strength or a standing jump. It is why depth jumps sit at the top end of most plyometric exercises for vertical jump programs rather than at the start. If you are building a full jump program, treat depth jumps as one advanced tool inside the broader how to jump higher framework, not the whole plan.

Before You Start: The Base You Need

Depth jumps punish athletes who skip the prerequisites. Meet these three checkpoints first:

• Strength base. A common guideline is a back squat around 1.5x bodyweight before adding high-intensity depth jumps. Absolute strength gives your tendons the capacity to absorb landing force.
• Landing skill. You should be able to drop into a soft, quiet quarter-squat landing and hold it. If you cannot stick a landing from a box, you are not ready to rebound off one.
• Low-level plyometric volume. Spend several weeks on pogo hops, ankle bounces, and box jumps so your tissues adapt gradually.

If any of these is missing, start with a box jump workout and a general plyometric exercises list to build landing mechanics and low-amplitude bounce before you ever step off a box.

How to Do a Depth Jump, Step by Step

1. Set the box. Begin with a 12-inch box for most athletes, 6-12 inches for newer jumpers. Place it on a firm, non-slip surface with room to jump straight up.
2. Stand tall at the edge. Toes near the front, arms ready, eyes forward.
3. Step off — do not jump. Lead with one foot and let gravity drop you. Jumping up or forward off the box changes your fall height and spikes landing force unpredictably.
4. Land on the balls of both feet. Feet hip-width, knees tracking over toes, hips loaded, torso upright. Think “stiff ankles, soft absorb.”
5. Rebound instantly. The moment you touch down, snap straight up as high as possible, driving the arms. Minimize the pause — the floor should feel hot.
6. Land the rebound softly and reset. Step back onto the box; don’t rush the next rep.

The single cue that separates a real depth jump from a slow squat-and-jump is ground contact time. Aim for under 0.25 seconds. If you feel yourself sinking, pausing, or “collecting” before the jump, the box is too tall or you are too fatigued.

Choosing the Right Box Height

Box height is the most misunderstood variable in depth jumps. Taller is not better. The correct height is the one from which you rebound highest while keeping ground contact short — often called your optimal drop height.

• 12 inches (30 cm): Default starting point for most athletes learning the drill.
• 18 inches (45 cm): A strong intermediate height once contact time stays short.
• 24 inches (60 cm): Advanced, and near the ceiling of usefulness for most people.
• Above 24-30 inches: Research consistently shows contact time lengthens and rebound height falls for the majority of athletes, so extra height adds landing stress without adding power.

A simple field test: film yourself rebounding from two or three heights and measure how high you jump on each. Use the height that produces your best jump with the shortest contact, not the tallest box you can tolerate. This same “test, don’t assume” logic runs through any serious vertical jump workout plan.

Programming: Volume, Frequency, and Rest

Depth jumps are high intensity, so quality beats quantity every session.

• Volume: 20-40 ground contacts per session for most athletes; beginners to plyometrics stay near 20. Split into 3-5 sets of 5-8 reps.
• Frequency: 1-2 sessions per week, with 48-72 hours between them. Pair them with lower-intensity days built from plyometric leg exercises so you keep training without hammering the same tissues.
• Rest between sets: 1-3 minutes. These are neural, not metabolic — you want to be fresh for every rebound.
• Placement in the session: Early, after warm-up, before heavy fatigue sets in. Never grind depth jumps at the end of a tiring workout.

Stop any set the instant contact time lengthens or jump height drops. A fatigued depth jump trains slow mechanics and raises injury risk — the opposite of the goal.

A Safe 6-Week Depth Jump Progression

This block assumes you already pass the base checkpoints above.

Weeks 1-2 — Landings and low bounce. No box drops yet. Drill stick-the-landing drops from a low step, plus pogo hops and ankle bounces, 3-4 sets of 6-8, twice a week. Groove a quiet, stiff, quick contact.

Weeks 3-4 — Introduce the drop. Add depth jumps from a 12-inch box, 3 sets of 5, once a week, with a second lighter plyometric day. Obsess over technique: step off, land midfoot, rebound straight up. Keep contact short.

Weeks 5-6 — Add height and intent. Progress to 18 inches if your rebound stays explosive, 3-4 sets of 5-6, and jump for maximum height each rep. Optionally add a rebound-to-box or rebound-to-hurdle to reinforce vertical drive.

After this block, depth jumps fold neatly into a broader routine covering strength, mobility, and speed — the same layered approach in guides on how to increase your vertical leap and other plyometric exercises to jump higher. Depth jumps aren’t only for court and field athletes either; runners use a scaled version to build tendon stiffness and stride economy, which is why they appear in programs of plyometric exercises for runners too.

Common Depth Jump Mistakes

Jumping off the box instead of stepping. This changes your fall height and spikes landing force. Always step off and let gravity do the work.

Using a box that’s too tall. Ego height kills the drill. If your knees cave, your contact drags, or you sink into a deep squat before jumping, drop the box height immediately.

Long, soft ground contact. Depth jumps are a fast, springy bounce, not a slow squat-and-jump. If you can count “one” between landing and take-off, you’re too slow — cue “quiet and quick.”

Too much volume, too often. More reps do not mean more power. Past 40 quality contacts you’re mostly accumulating fatigue and joint stress.

Skipping the strength base. Depth jumps on weak, undertrained tendons are the fastest route to a patellar or Achilles complaint. Build the base first, always.

When Depth Jumps Are Worth It — and When to Skip

Depth jumps earn their place for intermediate-to-advanced athletes chasing reactive power for jumping, sprinting, and change of direction. What most guides skip and this one names outright: the box height that matters is your optimal drop height measured by rebound, not a number copied from a program. If you are new to training, returning from injury, dealing with tendon pain, or you cannot yet land softly and squat a solid base, skip depth jumps for now and build capacity with lower-intensity jumps. The drill is powerful precisely because it is demanding — respect that, earn it with a base, and it becomes one of the best tools you have for jumping higher.