The GZCL Method
Cody Lefever's tiered framework for intermediate+ lifters
Quick Facts
- Level
- Intermediate
- Days / week
- 3–5
- Duration
- Ongoing framework
- Category
- Powerlifting
- Equipment
- Barbell, Squat rack, Bench
- Origin
- Created by Cody Lefever in 2014 via r/powerlifting
What is GZCL Method?
The GZCL Method is Cody Lefever's legendary strength framework from r/powerlifting. It's not a program — it's a template you can apply to any lift or goal. The core idea: organize your training into three tiers by intensity and volume.
T1 is your heaviest working set (~85–100% of 1RM), focused on building strength. T2 is moderate-intensity accessory work at 65–75% for volume. T3 is high-volume, lighter-intensity work (below 65%) for hypertrophy and muscle endurance.
GZCL spawned multiple follow-up programs: GZCLP (the beginner linear progression version), Jacked & Tan, UHF, and more. Intermediate lifters use the GZCL Method to build their own programs around squat, bench, deadlift, and press progressions.
Best For
- + Intermediate lifters past linear progression
- + Powerlifters wanting to build their own program
- + Lifters who enjoy programming theory
- + Those wanting balanced strength + hypertrophy
Not For
- − Beginners — start with GZCLP or StrongLifts
- − Lifters who want a done-for-you program
- − People without good bench/squat/deadlift form
Program Structure
T1 — Max Effort
Heavy main lift
- 1 main lift: 2-4 reps at 85-100% 1RM
- Example: Squat 5×3 at 85%, last set AMRAP
- Focus: strength development
T2 — Volume
Accessory compound
- Related compound: 3×8-10 at 65-75% 1RM
- Example: Front squat after squat day
- Focus: hypertrophy support
T3 — Isolation
Hypertrophy finisher
- Isolation work: 2-3×15+ at lighter weights
- Example: Leg press, leg curls, calf raises
- Focus: volume + muscle growth
How to Progress
GZCL is progression-agnostic — apply it to any scheme. Common approaches: linear (add weight weekly), undulating (vary T1 intensity day to day), or block (4-week cycles of accumulation → intensification → peaking). The framework tells you how to organize volume, not how to progress.
Pros
- + Highly customizable
- + Works for powerlifting and general strength
- + Teaches programming principles
- + Balances strength + hypertrophy
- + Spawned many great derivative programs
Cons
- − Not beginner-friendly
- − Requires self-programming knowledge
- − Easy to over-complicate
- − Needs accurate 1RM testing
Run GZCL Method in Fitloop
Fitloop handles the progression math, rest timers, and tracking — so you just show up and lift. Free forever, no ads.
Frequently Asked Questions
GZCL vs GZCLP — which should I run?
GZCLP is a specific 4-day linear progression program for beginners, based on the GZCL framework. GZCL (the method) is the underlying framework for intermediate+ lifters. Beginners run GZCLP. Intermediates apply GZCL to build their own programs.
Can I use GZCL for hypertrophy?
Yes. Shift the T1 reps up (5-8 instead of 2-4) and emphasize T2/T3 volume. This is how programs like Jacked & Tan are built from the GZCL template.
How do I set my T1 weights?
T1 uses 85-100% of your 1RM in varying rep schemes. A common T1 is 5×3 @ 85%, or 6×2 @ 90%. Match the rep scheme to your goals: fewer reps at higher intensity for peak strength, more reps at moderate intensity for muscle growth.
Do I need all three tiers every day?
Yes — a full GZCL workout hits all three tiers. T1 is the heavy main work, T2 is the related compound, T3 is hypertrophy. Skipping T3 is the most common mistake — and the fastest way to regret your program design later.
How long should I run a GZCL-based program?
Typical blocks are 8–12 weeks, followed by a deload and a test. After the test, adjust your 1RM and start a new cycle.