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LeanBuilt: 12-Week Strength & Shred
IntermediateFree

LeanBuilt: 12-Week Strength & Shred

Train Hard. Eat Smart. Stay Lean.

· Jul 2025
1athletes running this program
iOS & Android

Overview

Length
12 weeks
Days / week
6 days
Level
Intermediate
Goal
Bodyweight Fitness, Athletics, Muscle
Equipment
Dumbbell Only
Session length
50 min
To help you shed fat, retain muscle, and build strength through structured full-body resistance training, daily movement, and smart nutrition, without extreme restrictions. You’ll stay functional, energized, and lean with workouts that support long-term sustainability.

Who it's for

Intermediate athletes ready for a structured program
Athletes focused on building muscle size
Athletes who can train 6 days per week
Athletes with access to a set of dumbbells

Muscle engagement

Front
Back
Abs
12.1%
Upper Back
11.3%
Glutes
10.3%
Quadriceps
9.1%
Front Delts
8%
Triceps
7.7%
Lats
7.2%
Hamstrings
7.2%
Chest
6.4%
Middle Delts
5.9%
Biceps
5.3%
Lower Back
3.2%
Rear Delts
2.3%
Adductors
2.2%
Cardio
0.6%
Other
0.6%
Forearms
0.4%
Week 1 Workouts
#ExerciseSetsReps
1Squat (Barbell)46 reps
2Bench Press (Dumbbell)48 reps
3Bent Over Row (Dumbbell)310 reps
4Plank31 min
#ExerciseSetsReps
1Lat Pulldown48 reps
2Dumbbell Row310 reps
3Bicep Curl (Barbell)312 reps
4Face Pull315 reps
5Cycling130 min
#ExerciseSetsReps
1Walk180 min
2Lying Leg Raise315 reps
3Russian Twist320 reps
4Bird Dog11 rep
#ExerciseSetsReps
1Romanian Deadlift (Barbell)48 reps
2Walking Lunge310 reps
3Glute Bridge (Dumbbell)312 reps
4Hanging Leg Raise310 reps
#ExerciseSetsReps
1Overhead Press (Barbell)46 reps
2Incline Bench Press (Dumbbell)310 reps
3Lateral Raise (Dumbbell)315 reps
4Tricep Dip (Bodyweight)312 reps
#ExerciseSetsReps
1Clean Deadlift46 reps
2Push Up315 reps
3Seated Row (Cable)312 reps
4Goblet Squat315 reps
5Battle Ropes110 min

Weeks 2–12 are in the app

Download Boostcamp to follow the full program with auto-progression and built-in coaching notes.

Common questions

Yes, LeanBuilt: 12-Week Strength & Shred is completely free to follow on Boostcamp. Download the app on iOS or Android, find the program, and start your first workout immediately. All 12 weeks are fully unlocked.

This program is built around a dumbbell only. Make sure you have consistent access before starting, since the progression model assumes you can perform the same movements week over week.

Each session typically takes around 50 minutes to complete. That estimate covers your working sets but doesn't account for warm-up or rest between sets, so budget a little extra time when you're first learning the movements.

LeanBuilt: 12-Week Strength & Shred is structured around 6 training days per week, with rest days built in to allow for recovery. The Boostcamp app lets you reschedule sessions if your week doesn't go to plan.

The program runs for 12 weeks. The structure is designed so that each week builds on the last, with weights, volume, or intensity progressively increasing as you go.

LeanBuilt: 12-Week Strength & Shred is available inside the Boostcamp app, free on iOS and Android. Once you download the app, you can search for the program by name. The app tracks all your sets and weights automatically, so you always know exactly what to do next session.

Get started

Boostcamp app
11,000+ free programsStrength, hypertrophy, powerlifting and more, from elite coaches. All free.
Auto-progressionWeights and targets update automatically based on how you perform.
Coaching notesBuilt-in cues from the creator inside every workout session.
Progress trackingLog every set and see your strength gains over weeks and months.
Advanced analyticsTrack volume, intensity, and 1RM trends to see exactly how your training is evolving.
Free on iOS & Android