Your final set is over. You put the barbell down and look at the plates. You completed five reps, but the last one was tough. Should you add more weight next time, or stick with the same load?
That decision is at the heart of the 5×5 workout program. The format means five sets of five repetitions, and the goal is to gradually get stronger at a few main exercises. It is a good fit if you enjoy barbell training and want a clear plan for tracking your progress. To use it well, though, you also need to pay attention to how you perform each rep.
Five by Five, Explained Without the Gym Jargon
One repetition, or rep, is one complete movement: for example, lowering into a squat and standing back up. Five consecutive reps make one set. You then rest and start the next set. Once you have done that five times, you have completed 5×5, or 25 reps in total.
In the popular StrongLifts version, you use the same weight for all five working sets. “Working sets” are the sets that make up the main training load. Before them, you warm up with lighter weights. Your warm-up does not count toward those five sets.
For example, 5×5 at 30 kg means five sets of five reps with a total weight of 30 kg, including the bar. You do not add plates between working sets. This number is just an example; the right starting weight depends on how well you can perform the exercise.
What Your Week Looks Like
There are various programs built around five sets of five reps. To give you a concrete example, we use the basic StrongLifts structure here. It alternates between two workouts:
| Workout A | Workout B |
|---|---|
| Barbell squat: 5×5 | Barbell squat: 5×5 |
| Bench press: 5×5 | Standing barbell overhead press: 5×5 |
| Barbell row: 5×5 | Deadlift: 1×5 |
The deadlift is the exception: it has one working set of five reps. This is a feature of this particular version of the program.
You train three times a week, with at least one rest day between sessions. Here is what the schedule could look like:
- Week one: Monday A, Wednesday B, Friday A.
- Week two: Monday B, Wednesday A, Friday B.
You can choose different days. If you miss Wednesday, continue alternating at your next visit while keeping a rest day between workouts. There is no need to combine two sessions into one to “catch up.”
Your First Workout: Leave Room for Progress
Imagine that you can barely complete the fifth rep of your very first set. You still have four more sets to do with the same weight. Starting with the maximum weight you can lift five times can easily turn the entire workout into a series of all-out efforts.
Choose a weight that lets you control the movement from the first set to the last. At the beginning, you should be able to pay attention to your body position and technique. Every set does not need to end with a rep you can barely finish.
If these movements are new to you, ask a qualified trainer to show you the technique and how to set up the safety bars for squats and bench presses. Even an empty bar may be too heavy for a particular exercise. A lighter bar or a preparatory variation is a perfectly acceptable starting point.
Before the working sets, do lighter warm-up sets for the movement you are about to perform. Then allow yourself time to rest. The StrongLifts guide recommends around 3 to 5 minutes for difficult sets. If you constantly rush into the next set, it becomes harder to tell whether the problem is the weight or insufficient rest. Check the program’s rest guidelines.
Your Final Set Tells You What Comes Next
Let us return to the question at the start. The fifth rep was difficult. That alone does not determine whether you should increase the weight. All the sets matter, as does the way you completed them.
Here are three hypothetical training log entries. The weight is the same, but the next decision is different:
“30 kg: 5, 5, 5, 5, 5. Controlled technique.”
You completed all reps without assistance and with no visible change in the movement. This gives you a reason to try a small increase the next time you perform this exercise.
“30 kg: 5, 5, 5, 4, 3. Could not finish.”
Keep the same weight next time. Record what happened instead of rounding the result up to 5×5. Check your rest periods too: did you cut them short because you were in a hurry?
“30 kg: 5, 5, 5, 5, 5. Needed help with the final reps.”
On paper, the numbers look the same as in the first example. The execution, however, is different. Do not use assistance from a training partner or a shorter range of motion as a reason to add weight. First, establish a load you can control on your own.
In StrongLifts, the basic rule is to increase the weight after successfully completing the sets and to repeat the weight when you miss reps. The size and frequency of increases can be adjusted. A note about technique makes the numbers in your log more useful.
Why “Just Another 2.5 kg” Can Sometimes Be a Lot
Two small plates look like a modest change. Their significance, however, depends on the weight you are already lifting.
Going from 40 to 42.5 kg adds 6.25% to the load. Going from 20 to 22.5 kg adds 12.5%. The calculation is the same: divide the added weight by the previous weight, then multiply by 100. In the second example, the relative increase is twice as large.
So do not expect every exercise to progress at the same pace. If you completed your squats successfully but the overhead press is still challenging, make a separate decision for each. Smaller plates or more sessions at the same weight can make the transition more gradual.
And one detail that is easy to miss: an increase of 2.5 kg in total means 1.25 kg on each side of the bar. Adding 2.5 kg to each side means 5 kg in total.
One Difficult Day Does Not Mean You Have Stalled
If one workout does not go well, record the result and see what happens the next time you perform the exercise. But if you repeatedly fall short of the target reps on the same exercise, it makes sense to change something.
Start with what you can check: are your rest periods consistent, is your technique changing, have you added more exercises, are you returning after a break? This gives you a specific problem to address.
The standard StrongLifts setting is to reduce the weight by 10% after three consecutive unsuccessful workouts for that exercise. For example, 50 kg becomes 45 kg. This is a program rule, not a mandatory waiting period. If the load is clearly unsuitable, adjust it sooner. If you experience pain, stop the painful exercise and seek an assessment from a professional.
If you run into the same difficulty after every reduction, review the program with a trainer. You may need to change the number of sets, the exercises, or how often you increase the weight.
Will 5×5 Fit Your Daily Life?
Before you begin, consider whether you enjoy practicing the same movements and whether you can make time for them. Three exercises may sound like a short workout, but warming up and resting take time too.
If you only have two days a week available or five sets feel like too much, discuss a shorter version. Current guidelines from the American College of Sports Medicine (ACSM) also include options with 2 to 3 sets per exercise for developing strength. Consistency and an appropriate training load matter more than sticking to a single format.
You do not need a special set of supplements to start 5×5 either. First, organize your training, nutrition, and recovery time. Choosing a product makes sense after a specific assessment of your needs.
Leave the Gym with a Clear Plan for Next Time
After the final set, record three things: the total weight, the reps in each set, and a brief note about your technique. “Needed help with the last two reps” tells you more than “tough workout.”
That way, on your next visit, you will know whether to add a little weight, repeat the same load, or reduce it. This consistency is what makes 5×5 useful: every workout gives you a clear starting point for the next one.