What wind speed is too high for a bouncy castle?

Anything above 24mph, including gusts, under HSE guidance. That is roughly Force 5, the point where small trees start swaying. Check the gust forecast for your postcode the day before, and deflate the castle if the wind picks up on the day. Indoors there is no wind limit at all.

Do bouncy castles need to be supervised?

Yes, constantly, by a dedicated adult whenever children are on the castle. The supervisor keeps numbers down, separates big children from small ones, stops somersaults and wall climbing, and calls breaks. Rotate the job between adults in 20 to 30 minute shifts so attention stays fresh for the whole party.

What is a PIPA tag and does my bouncy castle hire need one?

PIPA is the UK inspection scheme for inflatable play equipment. Each tested unit carries a numbered tag showing it passed an annual inspection to the BS EN 14960 standard, and you can check the number on the PIPA website. Only hire castles with a current tag; reputable operators show it willingly.

Can adults go on a kids bouncy castle?

They should not. A standard children's castle is rated for users up to about 12 years, and adult weight tears beds, strains seams and flattens small bouncers. If the adults want a turn, and they usually do, hire an adult-rated castle, which is built with stronger material and more anchor points.

Bouncy Castle Safety: The Guide for Parents and Party Hosts

Bouncy castle safety comes down to five things: a properly anchored castle, a hard stop on use in winds above 24mph, constant adult supervision, separating big children from small ones, and hiring a unit with a current PIPA test tag. Get those five right and the castle is one of the safer things at the party. This guide explains each rule, why it exists, and exactly what to check on the day.

The rules that actually matter

UK inflatable safety rests on two pillars. The first is the equipment standard, BS EN 14960, which governs how castles are built and anchored. The second is the PIPA scheme, the industry inspection scheme under which each inflatable gets an annual test and a numbered tag, checkable on the PIPA website in under a minute. The Health and Safety Executive's guidance adds the operating rules: anchor every anchor point, stop use in winds above 24mph, supervise constantly, and match the users to the unit. None of this is bureaucracy for its own sake. The serious UK inflatable accidents of the last two decades trace back overwhelmingly to two failures: a castle that was not anchored properly in wind, or unsupervised use. That is genuinely reassuring, because both are preventable by the person doing the hiring. Ask your operator two questions before booking: can I see the current PIPA tag for this unit, and how do you anchor it. FunFast only hires out inflatables with a current tag, and any operator worth booking will answer both questions happily.

Anchoring: the one that saves lives

Wind is the serious risk with inflatables, and anchoring is the defence. On grass, a castle should be anchored at every anchor point with substantial steel ground stakes driven at an angle, not the tent pegs from a family camping set. On hard standing, where pegs are impossible, the anchor points take ballast: sandbags or water barrels of serious weight, properly attached. The operator should do this themselves and should never leave a castle held down by fewer anchors than it has anchor points. What you can check as the customer takes ten seconds: every corner strap goes to a peg or a weight, nothing is anchored to a wheelie bin or garden furniture, and the blower tube is tied off and taut. If an operator drops a castle, inflates it and leaves without anchoring everything, send it back. It sounds harsh, but an unanchored castle in a gust is a genuinely dangerous object, and no saving is worth the alternative.

The 24mph wind rule and how to actually use it

HSE guidance says inflatables must not be used outdoors in winds above 24mph, which is Force 5 on the Beaufort scale: the point where small trees sway. The practical problem is that gusts matter more than the gentle average, and gardens are gustier than forecasts suggest. So use the rule like this. The day before, check the hourly forecast for gust speed, not just wind speed, at your postcode. If gusts above 24mph are forecast, the castle does not go up outdoors, and a decent operator will call you first to rearrange, move it indoors or refund. On the day, conditions can change fast: if trees are properly moving and loose things are taking flight, get the children off, switch off the blower and let the castle deflate until things calm down. A deflated castle in wind is laundry; an inflated one is a sail. Indoors, in a hall or barn, the wind rule disappears entirely, which is why winter castle parties move inside and lose nothing.

Supervision: what constant really means

Every castle needs a dedicated adult watching whenever children are on it, and dedicated means not managing a conversation, a drink and a phone at the same time. The job is small but continuous: keep numbers sensible for the size of the unit, keep age groups matched, stop somersaults and climbing on the walls, keep the front step clear, and call rest breaks when it gets frantic. Rotate the role between adults in 20 or 30 minute shifts agreed in advance, because supervision collapses when everyone assumes someone else is doing it. Shoes off, glasses off where practical, no food, drink or face paint on the bed, and pockets emptied of anything sharp. The hire company should walk your first supervisor through all of this at set up; the FunFast handover includes exactly that briefing. One more unpopular rule that prevents most tears: adults bouncing with small children is how small children get hurt, so keep the grown-up turns and the toddler turns separate.

Big kids, little kids and how many at once

Most castle injuries are not dramatic failures, they are collisions: a seven-stone ten-year-old landing on a two-stone three-year-old. The fix is separation. Run the castle in sessions by size, ten minutes for the littles, ten for the bigs, and hold the line when the bigs complain, because they will. On numbers, follow the unit's own limits, which the operator should state at handover; for a typical 12ft castle that means roughly six to eight small children or four to five larger ones, and fewer is always fine. Watch for the crowding pattern where everyone gravitates to the middle: spread them out, and keep children off the front step and the walls. The age cutoff matters too. A standard kids castle is rated for children up to around 12 years, and teenagers or adults on a kids unit is how beds get torn and ankles get rolled. If the adults want a go, and they will ask, hire an adult-rated castle in the first place.

The set-up checklist before the operator leaves

Run this two-minute check at handover, and a professional operator will be pleased you did. Site: the castle sits on reasonably level ground, clear of branches, washing lines and fences, with clearance around it (the front especially) and nothing hard or sharp within falling distance of the entrance. Anchors: every anchor point pegged or ballasted, pegs flagged or capped so nobody trips. Kit: safety mats at the entrance covering the step-off zone, the blower positioned so cable and tube sit out of the running line, cable taped down or covered where people walk, and the rain cover to hand if the sky looks ambitious. Paperwork: you have seen the PIPA tag, you know the maximum numbers and the age limit, and you have a phone number that will answer during the party. Finally, the deflation drill: know where the blower switch is and that the castle takes only seconds to go down. Thirty seconds of questions now buys a completely relaxed afternoon.