The Complete Guide to nSuns 5/3/1: Programme Breakdown and How to Start

If you've spent any time on r/Fitness or r/weightroom, you've seen nSuns recommended to basically everyone who asks "what programme should I run next?" There's a reason for that. It's one of the most effective intermediate strength programmes available, it's free, and it works.

But most of the guides out there either drown you in spreadsheet screenshots or skip the bits that actually matter — like how to pick accessories, when to reset your training max, and which variant suits your schedule.

This is the breakdown I'd want before committing to 12 weeks of high-volume compounds.

What nSuns Actually Is

nSuns 531 LP is a linear progression programme built by a Reddit user called nSuns (real name Cody Lefever). It takes Jim Wendler's 5/3/1 rep scheme — sets of 5, 3, and 1 on the main compound lifts — and compresses the progression from monthly to weekly. Then it layers on extra volume inspired by Sheiko-style programming.

The result is a high-volume programme that drives your squat, bench, deadlift, and overhead press up quickly, provided you can recover from it.

It suits late-stage beginners and early intermediates. If you've run something like Starting Strength or StrongLifts to its conclusion — session-to-session progress is stalling, weights are getting sticky — nSuns is a logical next step. I ran StrongLifts years ago as a beginner powerlifter, and this is the kind of programme I'd have moved onto if it existed in the form it does now.

If you're a genuine beginner who's been lifting less than six months, this probably isn't for you yet. The volume will bury you. Run GZCLP first, then come back.

The Structure

Every training day follows the same pattern:

T1 (primary lift) — 9 sets of your main compound. This is where the 5/3/1 progression lives. You'll work up from around 65% of your training max to a top AMRAP set at roughly 95%, then back down.

T2 (secondary lift) — 8 sets of a complementary compound. Lighter, higher rep. This is your volume work and it drives hypertrophy alongside the strength focus.

Accessories — 3 to 6 exercises of your choosing. Typically 3-4 sets of 8-15 reps. This is where you address weak points and fill gaps the main work doesn't cover.

The programme comes in four variants:

4-day — upper/lower split. Two upper days (bench/OHP), two lower days (squat/deadlift). This is the one to start with if you've never run nSuns before.

5-day — the most popular version. Adds a third upper day focused on overhead press and incline bench. Monday through Friday, weekends off.

6-day squat — five days of the standard template plus an extra squat day. For people who want to prioritise their squat.

6-day deadlift — same concept, extra deadlift day instead. Pick this if your deadlift is lagging.

Most people run the 5-day. If you're unsure, start with the 4-day for eight weeks and move up.

Training Max and How to Set It

Your training max (TM) is 90% of your actual one-rep max. Every weight you lift in the programme is calculated as a percentage of this number.

If your bench 1RM is 100 kg, your TM is 90 kg. Every set weight flows from there.

If you don't know your 1RM, test it or estimate it. A set of 5 at a given weight gets you close enough using the Epley formula. Don't overthink this — being conservative is always better than being optimistic. If your TM is too high, you'll stall in two weeks and have to reset anyway. If it's slightly too low, you'll just progress a bit faster through the early weeks.

Set your TM conservatively. Every programme forum is full of people who started too heavy and stalled in a fortnight. The ego hit of starting light is nothing compared to the frustration of grinding through sessions you can't recover from.

Progression Rules

This is the bit that makes nSuns work. Progression is driven by your AMRAP (As Many Reps As Possible) set — the top set each day where you push for max reps at around 95% of your TM.

How you perform on that set determines what happens next week:

0-1 reps: Don't increase your TM. Consider whether it needs to come down.
2-3 reps: Increase TM by 2.5 kg (or 5 lbs).
4-5 reps: Increase TM by 2.5-5 kg (5-10 lbs).
5+ reps: Increase TM by 5-7.5 kg (10-15 lbs).

This is autoregulation without having to think about RPE charts. You push hard on one set, the programme adjusts itself. Good weeks reward you. Bad weeks hold you steady. It's elegant in its simplicity.

One thing people get wrong: the AMRAP set isn't an invitation to grind out ugly reps until you collapse. Stop when your form breaks down or you hit RPE 9 — one rep left in the tank. Ego reps at 95% of your training max are how you get injured, and an injury will cost you more progress than any single set will gain.

Choosing Accessories

This is where nSuns gives you the most freedom, and where most people overthink it.

The main lifts cover your pressing, squatting, and hinging. What they don't cover well is pulling (rows, pull-ups), direct arm work, and rear delts. Your accessories need to fill those gaps.

A practical setup for the 5-day:

Every session: Some form of rowing or pull-up. Your back needs as much volume as your pressing gets, and the main lifts don't provide it. Barbell rows, dumbbell rows, cable rows, lat pulldowns, pull-ups — rotate them, but do them every day.

Upper days: Add direct tricep and bicep work. Pushdowns, overhead extensions, curls. 3 sets each. Face pulls or band pull-aparts for rear delts.

Lower days: Add leg curls, leg extensions, and core work. The main lifts hit quads and glutes hard, but direct hamstring work helps balance things out.

Don't get clever with accessories. Pick exercises you can recover from, progress on slowly (add reps before adding weight), and actually enjoy doing. The main lifts are the programme. Accessories are support, not the show.

When to Deload

nSuns doesn't have a built-in deload protocol. This is a feature, not a bug — but it means you need to manage your own fatigue.

General rule: if you stall on your AMRAP sets for two consecutive weeks across multiple lifts, take a deload. Drop your TM by 10%, reduce accessory volume by half, and run one easy week. You'll come back stronger.

If only one lift stalls, the issue is probably specific — technique, sleep, or your TM got ahead of your actual strength. Reset that lift's TM by 10% and keep everything else moving.

Every 5-7 weeks, check in honestly. If your joints ache, your sleep is suffering, and you're dreading sessions, you need a deload whether your numbers say so or not. High volume programmes are a contract with your recovery. Break the contract and the programme stops working.

Common Mistakes

Starting too heavy. I've said it twice already. Third time for luck. Start light. The programme adds weight every single week. You don't need to begin at your limits.

Skipping back work. The programme has zero prescribed pulling. If you don't add it yourself, you'll develop a pressing-to-pulling imbalance that'll catch up with you as shoulder issues down the line.

Running it on a cut. You can, but expect to stall faster and recover slower. If you're cutting, either accept slower progression or switch to the 4-day variant to manage fatigue.

Turning accessories into a second programme. Three to six exercises. That's it. If your accessory block takes longer than your main work, you've overcomplicated it.

Chasing AMRAP numbers instead of quality. Five clean reps at 95% TM is worth more than eight ugly ones. The progression system works on honest numbers. Lie to it and you'll just get buried by unrealistic weights the following week.

How Long Should You Run It?

Most people get good mileage from 12-16 weeks. Some run it for six months. The programme doesn't have a built-in end date, so you keep running it until one of two things happens: you stop making weekly progress despite proper deloading, or the volume becomes unsustainable alongside the rest of your life.

When that happens, you've outgrown linear weekly progression. Time to move on to something periodised — Wendler's full 5/3/1, GZCL's Jacked & Tan 2.0, or a programme with planned intensity and volume phases.

That's not failure. That's the programme doing its job.

The Spreadsheet Problem

Traditionally, nSuns lives in a Google Sheets spreadsheet. You punch in your 1RM numbers, it calculates your weights for the week, and you either bring your phone with the spreadsheet open or print it out.

It works. It's also a pain. Updating your TM each week, scrolling through tabs mid-session, trying to read tiny spreadsheet cells between sets while your hands are chalked up — it's functional but it's not a good training experience.

This is just the sort of thing I hated doing that led me to start creating the VALDA platform with auto programme imports. I've spent months writing the logic that breaks programme text down into structured training data — days, exercises, sets, rep schemes, progression rules. You paste the nSuns template text into the parser, it extracts the full structure, and you've got it loaded as a structured programme in your app. Start a workout from any day, log your sets, and your PRs and progression are tracked automatically.

No spreadsheet. No manual TM updates. No squinting at cells.

[Paste your nSuns programme into VALDA and start training in 30 seconds →]

Quick Reference

Best for: Late beginners and early intermediates who want rapid strength gains on the big four lifts.

Duration: 12-16 weeks typical, longer if progress continues.

Frequency: 4, 5, or 6 days per week depending on variant.

Session length: 60-90 minutes including accessories.

Equipment needed: Barbell, squat rack, bench. Standard gym setup.

Start with: The 4-day variant if new to nSuns. The 5-day if you've run high-volume programmes before.

Training max: 90% of your actual 1RM. Be conservative.

Progression: Weekly, driven by AMRAP performance.

Deload: When you stall for two consecutive weeks on multiple lifts. Drop TM by 10%.