Our innovative design has been created for use in the construction industry, on commercial build projects. The team at JMAC Safety Systems identified a gap in the market for this product last year, and since then have spent time trialling and testing the design to ensure, like we do with the rest of our products, we’re offering the best on the market.

About Features Resources Specification & FAQs
Leg adjusts from 1.8m - 3.0m
Shock absorbing legs
44 X stronger than standard leg

The Extendable Leg


The JMAC Safety Systems Extendable Leg can be used for traditional build houses, 1.8 platform, timber frame builds, 2.0m platform, or commercial buildings typically 2.4m – 3.0m platform. One leg fits all.

The extendable leg is installed with the use of a podium for any height over 2.0m. Our specialist installation teams will attend site and provide a detailed and thorough step by step installation guide.

Due to the durability and increased strength of the extendable leg, the working load remains at 2.0kn (200kg) per m2, even when the platform is erected at 3.0m

As with the standard legs, the extendable legs can be manufactured with your company branding and colours.

Due to the increased strength of the leg, the shock absorbing supersock was developed to allow impact and energy to be absorbed, diverting the initial impact away from the surface of the system.


Extendable Leg Installation

JMAC Click!

JMAC Profile Film

JMAC Your Safety, Our Vision


Shock absorbing legs with our revolutionary supersock.
44 X stronger than the standard leg
Easy to install up to 40m2 per hour
Flexibility for a wide range of construction projects; traditional build at 1.8m, timber frame 2.0m or commercial buildings from 2.4 up to 3.0m
The platform height can be extended in 50ml increments from 1.8m - 3.0m
One leg fits all
Manufactured from a fibre reinforced polymer
Various colour options available


Do you have any current vacancies within JMAC Safety Systems?

We’re always on the lookout for fresh and talented individuals to join our ever-growing team.  Please take a look at our Careers Page for more information.

Is the Macdeck system available to purchase on finance?

Yes, we offer the option to purchase our system via our recommended financial partners. You may also use your own.

Is Macdeck a freestanding platform?

No, the Macdeck system is not freestanding (yet) and requires 4 walls to support the load.

(Watch this space!)

Can the system be loaded?

Macdeck can be loaded up to 2.0kn (200kg) per m2, the weight should be evenly distributed above the legs, loading diagrams are provided on request for each specific house builder. *Please note, the loading is also determined by the floor joist manufacturers load capacity, you can load our system to 2.0kn. However, please bare in mind the joists may not be able to sustain the leg load imposed when the decking system is fully loaded.

Can scaffold be built through the Macdeck system?

*Macdeck is specifically designed to allow tubular or system scaffold to be built through the system. JMSS have a generic scaffolding design with supporting calculations for the erection of party wall scaffolding to be built through the decking system. JMACs heritage and experience comes through managing a successful scaffolding company, this allows us to tailor and advise on bespoke projects to coordinate scaffolding operations with safety decking platforms, creating value for money for the client.

Who uses our product range