How to Build a Custom Gym Routine (Step-by-Step)

Template routines are a reasonable starting point, but they're built for a hypothetical average lifter with an average schedule and average weak points. You're not that person. Once you know your own schedule and which lifts you actually respond to, a custom routine outperforms a template — and building one is less complicated than it sounds.

Step 1: Pick a split that matches your actual week, not your ideal one

Full-body 3x/week, upper/lower 4x/week, or push/pull/legs 5–6x/week are the common structures. Pick based on how many days you'll realistically train, not how many days a program online recommends. A push/pull/legs split built for 6 days a week falls apart fast if you can only reliably hit the gym 4 times.

Step 2: List your exercises before you touch an app

Write down what you want to train each session — compounds first. A typical upper day might be bench press, overhead press, rows, then 2–3 accessory movements. Do this on paper or notes first; building it directly in an app while still deciding tends to produce a messier routine than planning it out first.

Step 3: Order by difficulty, not muscle group

Squats, deadlifts, bench, overhead press — anything that demands the most skill and central nervous system output — go first, while you're fresh. Isolation work (curls, lateral raises, calf raises) goes last regardless of which muscle it targets. Fatigue accumulates through a session; put the movements that suffer most from fatigue at the front.

Step 4: Set sets and reps before your first session

3–4 sets of 6–10 reps is a reasonable default range for most compound and accessory work if you don't have a specific program dictating otherwise. Write the target into the routine itself rather than deciding on the fly — that's what makes progressive overload trackable later.

Step 5: Keep it to 5–8 exercises per session

Beyond 8, rest timers and warmups start turning a session into a two-hour commitment, and the last few exercises get rushed or skipped entirely. If you have more you want to train, that's a sign to add a session, not extend one.

Step 6: Build it in your tracker

In Stay Fit, this means creating a custom routine, adding your chosen exercises in order, and setting target sets/reps per exercise — the same workflow whether you're building your first routine or your fifteenth, with no cap on how many you save. Other free-forever apps (Plates, Iron Log, FitNotes, GymMane) support the same custom-routine build; the mechanics are similar across all of them, though the interface varies.

Step 7: Run it for two weeks, then edit

The routine you build on paper is a hypothesis, not a final answer. After two weeks of logged sessions, look at what actually happened: which exercises you kept skipping, which ones left you undertrained, where the session ran long. Edit the routine based on that — swap an exercise, adjust set counts, reorder if fatigue is landing in the wrong place.

What goes wrong if you skip this step: A routine that looked good on paper but doesn't match your actual recovery or schedule gets abandoned entirely instead of adjusted, and you're back to a generic template.

When a template still makes more sense

If you're new to training and don't yet know your own weak points or realistic schedule, a well-designed template (a 5/3/1 variant, a basic PPL) is a reasonable starting point precisely because you don't have the data yet to build something more specific. Custom routines get more valuable the more training history you have to build them from — which is really just another argument for logging consistently from day one.