nSuns is one of the highest-volume powerlifting programs available. Built on Jim Wendler's 5/3/1 framework, it adds a daily max system and significant accessory volume. Here is what it actually involves and who it is designed for.
July 22, 2026
nSuns is a high-volume powerlifting-focused training program based on Jim Wendler's 5/3/1 framework, developed by Reddit user nSuns and widely popularized through the r/weightroom community. It adds a daily max system and substantially more accessory volume to the original 5/3/1 structure, producing one of the highest total weekly volumes of any commonly run intermediate program. nSuns is available in 4-day, 5-day, and 6-day variants and is designed for intermediate lifters whose primary goal is building the squat, bench press, overhead press, and deadlift.
It is not a beginner program. The volume demands require a training base, a well-developed recovery capacity, and the experience to know the difference between productive discomfort and overtraining. Run correctly, nSuns produces impressive strength gains. Run incorrectly, it produces overuse injuries and burnout.
To understand nSuns, you first need to understand what it is based on. Jim Wendler's 5/3/1 is a four-week strength cycle that operates on a Training Max (typically 85–90% of your true one-rep max) rather than your actual maximum. Each week prescribes main sets at specific percentages of this training max:
The final set of weeks 1–3 is performed as an AMRAP (as many reps as possible). This AMRAP set is where real progress lives: you push the top set to technical failure, which generates the strongest adaptive signal. At the end of each four-week cycle, you increase your training max by 2.5 kg on upper body lifts and 5 kg on lower body lifts.
nSuns modifies the original 5/3/1 by extending the main work sets significantly. Instead of three main sets plus the AMRAP, nSuns programs the standard 5/3/1 sets and then adds multiple back-off sets (typically five additional sets at descending weights based on your training max). The total working sets per main lift per session is usually 8–9, compared to 3–4 in standard 5/3/1.
The training max in nSuns is updated after every single session based on actual performance, hence 'daily max'. If your AMRAP set produced more reps than the minimum prescribed, your training max increases immediately for the next session. This is a more aggressive progression model than Wendler's original monthly cycle.
The 4-day variant is an upper/lower split. Two upper days train bench press and overhead press as the main lifts with significant row volume. Two lower days train squat and deadlift. This is the most accessible variant and the recommended starting point for anyone new to nSuns. Sessions typically run 75–90 minutes.
The 5-day variant adds an additional session and more accessory volume. The main lifts are distributed across five days, allowing each lift to be trained with more frequency and more accessory work per session. This is where most committed nSuns runners land after adapting to the 4-day program.
The 6-day variant is among the highest-volume programs commonly run by non-professional lifters. It adds significant accessory volume and a sixth training day. Recovery demands are extreme; this variant is appropriate only for experienced lifters who have fully adapted to high-frequency training, sleep 7+ hours per night consistently, and have minimal physical stress outside the gym.
Beyond the main and back-off sets, nSuns includes structured accessory work in every session. This is where you train secondary muscle groups: rows, pull-ups, dips, leg press, Romanian deadlifts, face pulls, lateral raises, curls, and similar movements. The accessory volume in nSuns is higher than most comparable programs, which is a significant contributor to both its effectiveness for muscle development and its high recovery demands.
A common approach is to prioritise one or two accessory movements per session and keep them consistent for 6–8 weeks, then rotate them. This creates measurable progression in accessories rather than randomly sampling different exercises each session.
There is no hard limit. Many intermediate lifters run nSuns for 6–18 months before transitioning to more advanced periodized programs or simply reaching a personal ceiling on the daily max model. Unlike GZCLP, which has a built-in progression cap, nSuns's daily max model can theoretically keep working as long as you are gaining strength, though gains do slow significantly as you approach your genetic ceiling.
Use 85–90% of your true one-rep max as your starting training max. If you do not know your 1RM, use a weight you can lift for 5 reps with a rep-to-1RM conversion formula, or simply start conservatively and allow the daily max model to move your numbers up quickly. Starting too heavy is the most common nSuns mistake and leads to stalling within the first two weeks.
The main and back-off sets are mandatory: they are the core of the program. Accessory work is where you have more flexibility. If time is a constraint, prioritise one or two accessories that address genuine weaknesses and cut the rest before cutting any main work. A session with all main sets and two accessories is more productive than a truncated main session with full accessories.
nSuns's daily max model requires careful tracking. After each session, you calculate your next session's weights based on your AMRAP performance and update your training max accordingly. This is manageable with a spreadsheet, but it is a non-trivial amount of math and record-keeping to sustain across months of training, particularly across four main lifts on different schedules.
Sweatora can run nSuns with all training max calculations and session weights computed automatically. You log your AMRAP performance, and the app handles the rest: updating your training max, setting next session's prescribed weights, and tracking your progress across the full 5/3/1 cycle. The program runs itself so you can focus on the lifting.
Run nSuns with automatic training max updates. Get started with Sweatora today.
