How Much Garden Do You Really Need for a Golf Cage?

Almost every week someone sends me a photo of their garden on WhatsApp with a tape measure lying across the lawn and the same nervous question underneath: “Be honest — have I actually got enough room for a golf cage?” And almost every week I get to deliver good news, because the real space requirement is smaller than most people think. It is also smaller than some of our own older articles suggested — we used to say 6m behind the cage was “ideal”, and I have watched that number scare off buyers with perfectly workable 4–5m gardens. So this is the correction, with the real dimensions from my own garden and from the setups I have installed for customers.

The honest answer: about 4m of garden depth works

Start with the fixed bits. The cage itself is 3m × 3m × 3m, and inside it the archery-grade impact panel (the baffle) hangs roughly 30cm in front of the back net — that gap is what lets the panel absorb the shot instead of trampolining it back at you. So from the back of the frame you lose about 30cm before you get to the surface you are actually hitting into.

Now the bit our old article got wrong. I am 6ft 1in, and I hit driver comfortably from about 3m off the baffle — which means I am standing inside the bay, with the ball around the mouth of the cage. I do not need a runway behind me. About 2m of clear space behind the ball is genuinely comfortable: room to take your stance, waggle, swing full out and walk around the mat without ever thinking about what is behind you. Add that to the 3m frame and you are at roughly 5m of total depth for a completely relaxed setup — and a tighter 4m works, because so much of the swing happens inside the cage itself.

Where the “6m ideal” myth came from

Our earlier sizing guide quoted 6m of clearance as the ideal, and to be fair it was written cautiously — nobody ever complained about too much room. But caution has a cost. A customer with a 4.5m garden reads “6m ideal”, assumes he is 1.5m short, and quietly gives up on the idea. I have now had that exact conversation on WhatsApp enough times to know the number was doing damage. The truth from daily use is that 6m is a luxury tier, not a requirement, and the only setup that genuinely pushes you towards it is a radar launch monitor — more on that below. We are updating our full cage sizing guide to match.

Minimum, comfortable, ideal: the three tiers

Here is how I now frame it for every customer who sends me measurements:

Width is simpler: the cage is 3m wide, and I would want about 3.5m of clear width so you have access down at least one side. More on that in a moment.

Sheds, fences and hedges: the clearance that actually matters

Behind the cage

The back of the cage can sit close to a fence, shed or hedge — the impact panel and back net do the stopping, so nothing structural is required behind the frame. I leave around 30–50cm so the net can billow on impact without rubbing, air can move (a net pressed against a damp fence stays damp), and you can get behind it to check pegs and clear leaves. A customer squeezed his to about 30cm from a shed and two years on it is fine.

Beside the cage

The sides are the same story with one addition: keep any hard structure — shed corner, wall, washing-line post — clear of your actual swing arc at the open mouth of the cage. Stand where the mat will go, take a slow-motion driver swing, and make sure nothing lives inside that circle. It sounds obvious; it is also the single most common thing people forget until the cage is up.

Side access

Plan at least ~50cm of walkable gap down one side. You will use it far more than you expect: retrieving the odd ball that dribbles round the frame, brushing debris off the roof net, checking tension after storms. The other side can go tight to a fence or hedge without any problem.

Launch monitors change the maths — but less than you would think

This is where the tiers genuinely diverge, and it depends entirely on which technology you buy.

Radar units sit behind the ball. The FlightScope Mevo Gen2 wants about 2.4m (8ft) behind the ball to read your shot properly — FlightScope’s own setup guidance is clear on this, and the Garmin R10 is similar. With the ball at the cage mouth, that 2.4m sits entirely in your open garden space behind the cage, which is what pushes radar owners towards the 6m ideal tier (about 5.5–6m total depth in practice).

Camera units sit in front of the ball. The Garmin R50 sits roughly 60cm in front of the ball, photographing the strike — which means it lives inside the bay and fits any 3m cage with zero extra garden. If you are on the minimum tier and still want proper numbers, a camera unit is the answer, and it is exactly what I recommend to 4m-garden customers. The full ladder from entry to sim-ready is in our launch monitor comparison guide, and you can browse the current range in the launch monitors collection.

Do not forget width and height

Depth gets all the attention, but check the other two axes while the tape measure is out. Width: 3m of cage plus ~50cm of access down one side, so 3.5m clear is the comfortable target — the second side can run tight to a boundary. Height: the cage is 3m tall and needs to be, because a driver swing arcs well above head height; there is no safe 2.5m version, and anything overhanging — washing lines, low branches — needs to clear the roof or you will be brushing debris off the roof net every week.

Measure your garden in five minutes

Here is the test I give every WhatsApp enquiry. Take four objects — plant pots, bamboo canes, anything — and mark a 3m × 3m square where the cage would go, back edge 30–50cm off the fence. Now stand just inside the front edge of the square with your driver and make a slow full swing. If the club moves freely and you can imagine 1–2m of breathing room behind you, you have the space; we found most people who do this exercise discover they have more room than they feared. Then either configure your setup in the golf cage builder, or do what half our customers do: send me the photo with rough measurements on WhatsApp and I will mark up exactly where the cage goes, free. For the build itself, the step-by-step setup guide covers anchoring, netting and levelling.

Frequently asked questions

Can a golf cage fit in a 4m deep garden?

Yes. The 3m cage plus a hitting position at the cage mouth works in about 4m of total depth — I am 6ft 1in and hit driver from around 3m off the impact panel, standing inside the bay. Snug but fully usable with every club.

Do you really need 6m of garden for a golf cage?

No — that is an old rule of thumb we have retired. 6m+ is the ideal tier, mainly relevant if you want a radar launch monitor (which needs ~2.4m behind the ball). About 5m is comfortable; about 4m is the working minimum.

How close can a golf cage be to a fence or shed?

30–50cm behind and beside is fine — the impact panel does the stopping, the gap is just for net movement, airflow and access. Keep one side walkable and keep hard structures out of your swing arc at the cage mouth.

How much extra space does a launch monitor need?

Radar units (FlightScope Mevo Gen2, Garmin R10) need about 2.4m behind the ball, pushing you to roughly 5.5–6m of total depth. Camera units like the Garmin R50 sit ~60cm in front of the ball and fit inside any 3m bay — no extra garden at all.