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

Template routines are fine when you're starting out. 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 which days you can actually make it to the gym and which lifts your body responds to, a custom routine beats any cookie-cutter program - and building one is less complicated than Reddit makes it sound.

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

Full-body 3×/week, upper/lower 4×/week, push/pull/legs 5–6×/week - those are the usual suspects. Pick based on how many days you'll realistically train, not how many days some influencer's program demands. A six-day PPL split falls apart fast when you can only reliably hit the gym four times. I've watched people abandon great programs because the schedule was fantasy, not reality.

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 two or three accessory movements. Do this on paper or in your phone's notes app first. Building directly in a tracker while you're 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 nervous system output - go first, while you're fresh. Curls, lateral raises, calf raises go last, regardless of which muscle they hit. 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 solid default 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 - you need a baseline to beat.

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

Past 8 exercises, warmups and rest timers turn a session into a two-hour ordeal. The last few movements get rushed or skipped entirely. If you have more you want to train, add a session - don't stretch one into infinity.

Step 6: Build it in your tracker

In Stay Fit, create a custom routine, add your exercises in order, and set target sets/reps per exercise. No cap on how many routines you save - same workflow whether it's your first or your fifteenth. Other free-forever apps (Plates, Iron Log, FitNotes, GymMane) support the same build; the mechanics are similar, though the interface varies.

Step 7: Run it for two weeks, then edit

The routine you build on paper is a hypothesis, not gospel. 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 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 perfect on paper but doesn't match your recovery or schedule gets abandoned entirely instead of tweaked. You're back to scrolling for another template instead of fixing the one you already built.

When a template still makes more sense

If you're brand new and don't yet know your weak points or realistic schedule, a well-designed template (a 5/3/1 variant, a basic PPL) is a fine 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.