Room For It

Home gym room size calculator

Add the machines you own, type their real sizes, then drag them around a plan of your room. Each one carries the space it needs around it, so you can see where two machines are fighting over the same floor.

Waiting

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Add your room size and a machine to see whether the layout works.

  • Room this layout needs—
  • Headroom—
  • Through the door—
  • Floor covered—
Machine Tightest side Clear floor Enough?

A treadmill that fits the room still has to get into it. Turn it through the door →

Drag a machine to move it. The dashed band around it is the floor that machine needs kept clear. Objects can be focused with the Tab key: arrow keys move the focused object, and the [ and ] keys turn it.

Not sure of your numbers? Start from an example:

Wall to wall, left to right on the plan. Type 16' 6" if you like.

Wall to wall, top to bottom on the plan.

Measure to the lowest thing up there: a joist, a garage door track, a light. That is what you will hit.

What is in the room

    A preset only fills in the boxes below. Change any of them and the drawing follows your number, not the label.

    Every box below belongs to this machine. Pick another one to edit that instead.

    Side to side. Measure the widest part, which is often the feet rather than the frame.

    Front to back. On a treadmill this is the whole deck, console included.

    The tallest part. This is what the ceiling check and the door check both use.

    Room you need above the machine: to press a bar overhead, or for a runner's head above a treadmill deck. Zero if nothing happens up there.

    Floor this machine needs kept clear

    These four turn with the machine. Front is the bottom edge on the plan until you turn it.

    For a rack, enough to walk a loaded bar out and step back.

    For a treadmill, the run-off zone. Your manual gives a figure for this one.

    Room to load a plate, or to step off sideways.

    Often the same as the left, but not on a machine pushed against a wall.

    The machine you are editing, side by side
    Side Wants Has Enough?

    The door into the room

    Measure the gap with the door standing open, not the frame. The open door itself steals an inch or two.

    Floor to the underside of the frame. Put zero in either box to skip the door check.

    What this assumes
    • The clearance figures are starting points, not rules. Manufacturers publish their own, and they vary a lot between machines. The defaults here are typical of what manuals ask for. Look up yours and type it in.
    • Treadmill run-off is a safety figure from the maker. The default of 79 in behind the belt is at the common end of what manuals ask for. Yours may want more or less, and it is the one number on this page worth checking before you buy.
    • A machine is drawn front-down. Its front faces the bottom of the plan until you turn it, and the four clearance figures turn with it.
    • The ceiling is checked on its own. Running out of headroom shows as Tight, not as a failure, because only you know whether you press overhead. The inches missing are in the table.
    • The door check keeps the machine square. It tries each of the three faces both ways up. It does not tilt anything on the diagonal, which is how long things really go through doors.
    • Nothing else in the room is counted unless you add it. Water heaters, shelving, a car and a garage door that swings inwards all take floor this plan knows nothing about.

    How this calculation works

    1. Each footprint
    2. Add its own clearance
    3. Check walls and machines
    4. Check the ceiling
    5. Check the door

    floor needed = machine + clearance on each of its four sides; ceiling needed = machine height + space above it

    Each machine is measured twice. Once as the box it stands in, and once as that box grown by the space it needs on each of its four sides. The footprints must not touch each other or cross a wall. The grown boxes may cross each other, but every time they do, something is in the way.

    The three verdicts mean different things. Fits means every machine has all the space you asked for. Tight means a side has some space but less than you wanted, so you can still use the machine. Doesn't fit means a side has no space at all, two machines are in the same place, or something is taller than the ceiling.

    Typical sizes and the floor one machine wants to itself
    Machine Typical size Clear floor, inches Smallest room
    Power rack48 × 48 × 84 in36 front, 12 back, 24 sides8' × 8'
    Squat stand48 × 24 × 72 in36 front, 12 back, 24 sides8' × 6'
    Treadmill34 × 76 × 57 in79 front, 12 back, 20 sides6' 2" × 13' 11"
    Rower24 × 96 × 20 in12 front, 12 back, 12 sides4' × 10'
    Exercise bike24 × 48 × 50 in12 front, 24 back, 12 sides4' × 7'
    Flat bench24 × 48 × 18 in24 front, 24 back, 24 sides6' × 8'
    Functional trainer60 × 36 × 84 in48 front, 6 back, 12 sides7' × 7' 6"

    Sizes are typical of what is sold, not a standard. The last column is the room one machine would want alone, squared up to the walls. Two machines side by side usually need less than the two figures added together, because their clear zones can share floor where nobody stands.

    Every machine wants a different shape of space

    This is the part a single clearance figure gets wrong. A treadmill needs a long empty strip behind the belt and almost nothing at the sides, because the risk is being thrown off the back. A power rack needs space in front to walk a bar out, and space at both sides to slide plates on. A rower is nearly all length already, so it wants a margin at each end and little else.

    Add two machines and the shapes start to matter. A bench parked in front of a rack is fine as storage and useless as a layout, because that is the floor you walk the bar into. The plan shows it: the bench sits inside the rack's dashed band, and the verdict says which machine is crowded.

    Ceiling height fails quietly

    Floor space is the thing people measure, and headroom is the thing that stops them. An 84 inch rack stands up fine under an 8 foot ceiling. Put a bar on your back and press it overhead and you have run out of room, and no amount of dragging things around the plan fixes it.

    Treadmills have the same problem in reverse. The machine is short, but you stand on a deck that is six to ten inches off the floor, so the ceiling has to clear the tallest runner plus that deck. Measure to the lowest thing above the machine. In a garage that is usually a joist or the door track, not the ceiling itself.

    Getting it into the room is a different problem

    The door check on this page is deliberately separate from the verdict, because moving furniture cannot fix a doorway. It takes the three faces of the machine and tries each one both ways up against the opening you typed.

    A treadmill almost never goes through a 30 inch opening in one piece. It folds, or the uprights come off. A power rack always comes apart, so its assembled height of 84 inches does not matter at the door. The check is most useful for the things people assume are fine: a functional trainer, a wide bench, a rower that has to turn a corner on a landing.

    Common questions

    How much space do you need for a home gym?

    It depends on the machines, not on the room. A power rack with room to walk a bar out and load plates wants about 8 by 8 feet of floor to itself. A treadmill with the run-off zone many manuals ask for wants a strip about 6 by 14 feet. A bench wants about 6 by 8 feet. Machines can share floor where their clear zones do not overlap, which is why this page measures them together.

    What ceiling height do you need for a home gym?

    A common power rack is about 84 inches tall, so an 8 foot ceiling leaves about a foot above it. That is enough to stand in, but pressing a bar overhead or pulling up above the bar needs more than the rack itself. For a treadmill the sum that matters is the deck height plus the height of the tallest runner, which is usually taller than the machine.

    Will a treadmill fit through a standard door?

    Usually not while it is assembled. A typical treadmill is about 34 inches wide and 57 inches tall, and the narrowest face it can present to a 30 inch opening is still too wide. Most treadmills fold or come apart for exactly this reason, so check what the manual says before you measure the stairs.

    Once the machines fit the room, the question is whether they get into it — see will furniture fit through a door. For where the clearance figures come from and how to find yours, read how much space a home gym really needs.