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20ft x 20ft Adult Party Castle

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Read the equipment-care rules

20ft x 20ft Adult Party Castle — Big Fun for All!

Elevate your next event with our gigantic 20ft x 20ft Adult Party Castle! Perfect for birthdays, corporate events, neighbourhood gatherings, or any celebration, this inflatable can accommodate over 19 participants at once, guaranteeing non-stop fun and excitement for all your guests. 🕺💃

🌟 Designed for Fun & Safety

  • All-Weather Ready: Built-in rain cover ensures play continues rain or shine. ☔️

  • Secure Play: Back netting provides added safety for participants. ✅

  • Spacious & Vibrant: Roomy design with bright colors makes it suitable for adults of all ages.

  • Event Versatility: Ideal for parties, team-building events, or community festivals.

🚚 Convenient Delivery & Setup

We make party planning simple:

  • Professional delivery, setup, and takedown included.

  • Fully secured and ready for immediate fun.

  • Serving Northampton and surrounding areas, so you can focus on the party.

📞 Book Your Adult Party Castle Today!

Don’t miss out on the chance to make your event unforgettable. Reserve our 20ft x 20ft Adult Party Castle now and give your guests a celebration they’ll remember!

Price: £220

Suitable for: Adults & Children

Important Notice: It is the responsibility of the hirer to ensure that the bouncy castle they book will fit in the desired space. All our inflatable measurements are clearly displayed on our website for your convenience.

Looking after the hire equipment

Please keep these items away from the hire equipment:

  • Silly String, party poppers, confetti and glitter
  • Food, drinks, cigarettes and e-cigarettes
  • Face paints, pens, markers, sharp objects and glow sticks

Balloons: Remove all balloons from the inflatable before collection. For overnight hires, remove them before leaving the inflatable overnight. Keep balloons off inflatables in wet weather because the colours can run and permanently stain the surface.

These items can damage the equipment. Repairs or replacement can cost thousands of pounds.

 Floor SpaceHeight
Unit Size:20.5ft x 19.9ft12ft
Required Space:23.5ft x 25.9ft13ft
Suitable
Indoors on Hard Surface
Outdoors on Grass
Outdoors on Hard Surface
Shower Cover Included
User HeightMaximum Users
0-1m19
0-1.2m14
0-1.5m11
0-1.8m9
Age RangeSuitable
Children
Adults
We are proud to deliver our inflatables to all parts of Northampton, Northamptonshire, and Milton Keynes. No matter where you are located in these areas, we've got you covered!

Want to check a date or see if this inflatable will fit? Message us on WhatsApp with your event date and postcode.

Want to add Didi Cars or a party game to your hire? See our party extras.

Delivery & collection

  • Garden hires: Standard delivery is 7am–noon. Summer collection is 4pm–7pm. For outdoor winter bookings, collection is 2pm–4.30pm.
  • Hall hires: Fixed delivery and collection slots are available between 10am and 5pm. Allow at least 30 minutes before and after the party for setup and pack-down. For larger setups, allow 60 minutes each way.
  • Overnight hires: Where agreed, collection is 7.30am–1pm the following day.
  • Multi-day hires: We deliver on your first booked day and collect on your last. The window depends on the season and venue.

For exact-time requests, charges and seasonal arrangements, see our delivery and collection policy.

Understanding Sizing Measurements

  • Unit Size: This is the manufacturer’s listed size of the inflatable, showing the minimum flat grass space required. Example: A 12ft x 12ft bouncy castle will need a 12ft x 12ft grass area for safe setup. For full dimensions, see the size tab on each product listing.

  • Required Space: This refers to the overall clear space needed for safe operation, free from obstacles. Example: A 12ft x 12ft castle that requires 16ft x 16ft means you’ll need the 12ft x 12ft base area plus 2ft of clear space on every side, away from walls, fences, washing lines or posts.

For any help or guidance on measurements, our friendly office team is just a call away.