Animatronic Dinosaur Size Guide: 3 m to 12 m

Between a three-metre raptor and a twelve-metre sauropod there are four or five sensible sizes, and the right one is decided by the site long before it's decided by the species.

Here's what changes at each step, and how to measure a space so the answer isn't a surprise on delivery day.

What each size actually gives you

Length	Weight	Joints	Typical use
3 m	~80–150 kg	8–14	Indoor exhibits, mall activations, close-up interaction
6 m	~300–450 kg	14–22	The usual park hero piece; visible across a plaza
9 m	~600–900 kg	20–30	Landmark pieces at park entrances; needs crane access
12 m	~1,000 kg+	25–40	Sauropods and large theropods as destination attractions

These are build ranges, not fixed values — a 6-metre piece with a long tail and a deep body can land outside the band. Use them to sanity-check a quote, not to specify one.

How to measure the space properly

The footprint is the easy part. Four measurements decide whether a size is actually possible:

Clear height. A piece that rears or lifts its head needs headroom above its static height. A five-metre animal standing tall can want six and a half metres of clearance — check the actual ceiling or the tree canopy, not the drawing.

Tail swing. A whip tail sweeping through a wide arc needs more floor than the body occupies. Mark the arc on the ground with chalk before you commit to a position.

The route in. Door width, turning radius, floor loading, lift capacity. A 9-metre piece that can't get through the service corridor is a 9-metre piece that lives in the car park.

Service access. One metre behind and around the piece, for skin repairs and motor access. If planting or a fence blocks it, maintenance becomes a landscaping job.

Bigger isn't automatically better

Two things break the "go big" instinct.

First, viewing distance. A piece is impressive when it fills a visitor's field of view. At three metres away, a six-metre animal already does that; a twelve-metre one at the same distance is a wall of skin. Large pieces need stand-off space to read.

Second, cost isn't linear. Surface area is what you pay for in skin, and structural class is what you pay for in frame. Crossing from six to nine metres changes both, which is why the price step is bigger than the length step suggests.

Power and transport by size

A three-metre piece runs from a standard circuit. By six metres you want a dedicated supply near the position. At nine and twelve metres, cable runs get long enough that voltage drop affects motion — plan the supply location with the piece, not after it.

Transport follows the same curve. Three metres ships as a crate in a van. Six needs a truck. Nine and twelve need a low-bed, a crane at both ends, and a route survey for bridges and overhead lines.

Questions we get asked

Can we start at 6 m and extend to 9 m later?

Rarely worth it. Extending changes the frame and the centre of gravity, so it's closer to a rebuild than an upgrade. Choose the size you'll want in five years.

Does a bigger piece move more slowly?

It should. Large masses moving quickly look wrong and load the gearboxes. Slower motion on a big piece is both more convincing and cheaper to build.

What if the site is uneven?

It needs a level pad or a foundation. An animatronic standing on a slope puts asymmetric load through the frame, and the joints bind before anything visibly breaks.

Choosing a size

Send the four measurements — footprint, clear height, route width, and where visitors will stand — and we'll tell you which size reads best in that space. YESDINO has been building animatronic dinosaurs since 2015.

Photos of the site are more useful than a plan at this stage; they show the things drawings leave out.