The 12ft JR Jumping Castle is the smallest castle in the Jump About range. This 4.5m x 4.5m castle suits children aged 2 to 12 and fits in most backyards, double garages, and undercover areas on the Central Coast.
12ft JR jumping castle hire starts at $190 for 4 hours, $240 for a full day (9am to 4pm), or $340 for 24 hours. Setup and pack down are in the hire price. Pick your suburb at checkout to see the delivery fee.
About the 12ft JR Jumping Castle
The "JR" stands for Junior. This is the castle for younger children who want their own bounce space at a birthday party. At 4.5m x 4.5m, it fits in a standard backyard, double garage, or undercover area on the Central Coast. You need a flat space of at least 5.5m x 5.5m. We set up, inflate, and have everything ready before your first guest arrives.
The 12ft JR suits children aged 2 to 12. It is our most popular choice for toddler birthday parties, smaller backyards, and indoor setups during cooler or wetter months. The castle supports interchangeable themed banners, so you can pick a character theme that matches your child's party rather than being locked into a fixed design. Bookings run year-round, with the strongest demand during school holiday periods in January, April, July, and October.


Specifications
| Specification | Detail |
|---|---|
| Dimensions | 4.5m x 4.5m (approx. 12ft x 12ft) |
| Space required (with clearance) | 5.5m x 5.5m minimum |
| Age range | 2 to 12 years |
| Setup surface | Flat grass preferred. Also suitable on concrete or paving with sandbags, or indoors. |
| Power required | 1 x standard 240V power point within reach of blower |
| Indoor use | Yes. Fits most double garages and undercover areas. |
The 4.5m x 4.5m footprint is the smallest castle in the Jump About range. If you need something bigger with a slide or extra play features, the 13ft open jumping castle is the next size up. If a specific character theme is a must, the Cars themed jumping castle at 5m x 5m suits the same age group.


12ft JR jumping castle hire pricing
| Hire duration | Price |
|---|---|
| 4 hours | $190 |
| Full day (9am to 4pm) | $240 |
| 24 hours | $340 |
What is included in every hire
- The 12ft JR jumping castle (4.5m x 4.5m)
- Electric blower that runs throughout the hire
- Full professional setup and safety check on arrival
- Pack down and collection at the end of the hire
- Stakes for grass setup or sandbags for concrete and indoor surfaces
- Safety mats at entry and exit points
- Public liability insurance for every hire
At $190 for 4 hours, the 12ft JR is one of the most accessible jumping castle prices on the Central Coast. Your delivery fee is selected by suburb at checkout and shows before you pay.
Ready to book?Pick your date and suburb and we will handle the rest →
Delivery and setup
We handle setup and pack down for every hire. Our team arrives before the party, rolls out the castle, anchors it with stakes or sandbags, connects the blower, and places safety mats at entry and exit. At the end of your hire, we come back, deflate, pack up, and take everything away. Setup and pack down are in the hire price.
You need a flat, clear space of at least 5.5m x 5.5m, a standard 240V power point nearby, and a clear access path. Remove any hard debris before we arrive. Concrete and indoor setups use sandbags instead of stakes. Setup takes 15 to 20 minutes.
We deliver to more than 340 suburbs across the Central Coast, Newcastle, and Hunter Valley, including Gosford, Terrigal, Erina, Tuggerah, The Entrance, Charlestown, Maitland, and Cessnock. Pick your suburb at checkout to see your delivery fee before you pay. Fees start at $60 for nearby Central Coast suburbs.


Why the 12ft JR works for younger parties
The JR works well for toddler parties because the space stays manageable. A 4.5m x 4.5m castle gives kids room to bounce while parents keep an easy eye on the little ones. The banner system sets this castle apart from fixed-theme options: one frame, and you choose the character theme your child wants. No commitment to a single design.
Parents comparing options in the basic castle range often look at the Frozen jumping castle and other fixed-theme castles alongside the JR. The JR wins when theme flexibility is the priority, when you want a banner option that is not available in the single-theme range, or when your yard or venue calls for the smallest possible footprint.
See how the booking and setup process works.
Safety and insurance
We check every castle before each hire. On arrival, our team inspects the setup area, anchors the castle securely with stakes on grass or sandbags on hard surfaces, places safety mats at the entry and exit, and runs through the safety basics with you. Jump About carries public liability insurance for every hire. Children need adult supervision at all times while the castle is in use. Shoes and glasses come off before going in. In strong winds or severe weather, we will contact you to reschedule.
Frequently asked questions
What size is the 12ft JR jumping castle?
The 12ft JR jumping castle measures 4.5m x 4.5m (approximately 12ft x 12ft). You need a clear, flat space of at least 5.5m x 5.5m to allow 1m of clearance on each side. It is the smallest castle in the Jump About range and fits in most standard suburban backyards.
How much does it cost to hire the 12ft JR jumping castle?
12ft JR jumping castle hire starts at $190 for 4 hours. A full day (9am to 4pm) is $240, and 24-hour hire is $340. Setup and pack down are in the hire price. Pick your suburb at checkout to see your delivery fee, which starts at $60 for nearby Central Coast suburbs.
Can I choose a themed banner for the 12ft JR jumping castle?
Yes. The 12ft JR supports interchangeable themed banners, so you can match the castle to your child's party theme. Contact us for the current banner list when you book and we will bring your chosen theme on the day.
Is the 12ft JR jumping castle safe for toddlers?
The 12ft JR is one of our most popular castles for toddler parties. It suits children aged 2 to 12. Adult supervision is required at all times while the castle is in use. Jump About holds public liability insurance and checks all equipment before each hire. Read our full FAQ for more safety information.
Can the 12ft JR jumping castle be set up indoors or in a garage?
Yes. At 4.5m x 4.5m, the 12ft JR fits inside most double garages and undercover entertaining areas. You need a power point nearby for the blower and a clear access path. Indoor and concrete setups use sandbags instead of ground stakes.
Not sure which castle suits your party?
Pick from the full Jump About range.
The 12ft JR is the most compact castle in the Jump About range. Book the 12ft JR jumping castle now to lock in your date.
12ft JR Jumping Castle Hire
- Regular price
- From $190.00
- Sale price
We deliver, set up, and pack it all down across the Central Coast, so the only thing you organise is the party.
