NextSet
Writing

Running a gym · 25 August 2026 · 3 min

How many machines does a gym actually need?

We built a tool that answers this exactly, because we had to. The floor is lower than most owners think — and the gap costs less than a leg press.

Every gym owner has been sold a machine they didn't need. Usually more than one.

We had to answer this question properly, because NextSet builds training plans from whatever a gym actually owns — so we needed to know what "enough" is. Not as an opinion. As a number the software can check.

Fifteen movement patterns

Everything worth training is one of fifteen patterns: squat, hip hinge, chest press, overhead press, row, pulldown, quads, hamstrings, glutes, side and rear delts, biceps, triceps, calves, core, cardio.

That's the whole list. Every exercise anyone has ever sold you is one of those fifteen wearing a different badge. A plan is complete when it covers them; it has a hole in it when it doesn't.

The floor is two things

Here's the part that surprises people. We measured our own exercise library against a gym that owns dumbbells and one adjustable bench, and nothing else.

All fifteen patterns are coverable. Every one of them, for a complete beginner, for someone with bad knees, for someone with a bad back.

Two pieces of equipment. That's the floor. A gym with dumbbells and a bench can give every member a complete, progressive, eight-week training plan and never once tell them "sorry, we can't train that here."

We didn't assume this — when we first checked, our library only filled seven of fifteen patterns on that gym, and we had to go and write the missing thirty-two exercises. The floor is a promise we had to earn.

What machines actually buy you

If two things are enough, why own more?

Machines don't make plans possible. They make them better, and they make them better in three specific ways:

They're easier to load progressively. A pin stack goes up in fixed, repeatable increments. Dumbbells at most gyms jump 2.5kg at a time, which on a lateral raise is a 25% increase.

They're easier to do badly and still be fine. A hack squat holds the path for you. That matters enormously for the beginner who joined in January and has never squatted.

They let people train around an injury. Someone who's flagged their lower back can still train legs hard on a leg press. On dumbbells alone, their options narrow fast.

The honest ranking

If you're buying, this is the order that adds the most coverage per rupee:

  1. A rack and a barbell. Turns your floor from "we can train everything" into "we can train everything heavy."
  2. A lat pulldown. Vertical pull is the pattern dumbbells cover worst. A pullover is a substitute, not an equal.
  3. A leg press. The best injury-friendly leg option there is.
  4. A cable station. One machine, a dozen patterns, endless small-increment loading.
  5. A leg curl. Hamstrings via dumbbells alone are genuinely awkward.

After those five, you're buying variety, not capability. Variety has value — people get bored, and bored people cancel — but be honest with yourself about which one you're buying.

We'll just tell you

When a gym sets up on NextSet, it photographs its floor and gets a straight answer:

We can build complete plans with your equipment. 13 of 15 movement patterns are covered by your machines — hip hinge and glutes fall back to dumbbells and bodyweight.

And if the equipment genuinely can't support complete plans, we say that instead, and name what's missing. We'd rather lose the signup than quietly hand your members a plan with a hole in it.

You can find out what your own floor covers in about ten minutes, for free. It costs you some photos.