MasterForm Hobs

MasterForm Hob Formwork Products

MasterForm Hobs are custom made to suit project requirements in width and height and can be cast-in or post-fixed on top of the slab in a fraction of the time and cost of conventionally formed hobs, freeing up valuable project resources. MasterForm also offer a free shop drawing service to identify hob types and schedule leg heights for your project.

 

PLEASE NOTE: MasterForm will be phasing out the Certification of all MasterForm Cast-in and Post-fix Hobs (Engineered without Reinforcement) from 1 July 2021. Please visit www.masterform.com/hob-update-july-2021 for more details.

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MasterForm cast-in hobs

MasterForm cast-in hobs are a revolutionary new concept. We offer a unique and innovative way of simplifying hob installation by allowing hobs to be poured in situ with the slab. The secret is in the patented supporting leg that gets fixed directly to the ply, securing the hob in place during the slab pour, making them much more resistant to movement. The result is a straight, level, MasterForm hob installed in only a fraction of the time and cost of doing it conventionally. None of the cold joints will become susceptible to cracking over time either. Best of all, since these hobs will deflect uniformly with the slab, MasterForm hobs deliver vastly superior waterproofing, so you will have no more water ingress issues. You’ll never go back to conventional formwork again.

  • MasterForm cast-in hobs are poured in with the slab. These come with legs that fix onto the formwork. This is poured at the same time as the slab, all poured as one to maximise efficiency
  • Hobs have the same density and structural integrity as the slab, allowing better support of load-bearing walls and minimising the risk of failure
  • The MasterForm hob acts like an upstand beam, further stiffening the slab at point load areas
  • Window and facade frames can immediately be measured and ordered, delivering savings to and speeding up the construction program
  • Support legs manufactured to correct heights
  • Corners, joiners and end caps are provided for the perfect finish
  • Special profiles are available, such as uneven hobs, precast flashing detail hobs
  • No more unnecessary time spent forming up and stripping formwork
  • No more extra site visits to drill and set up starter bars
  • Fixing onto metal deck instead of ply? No problem. We have complete systems to suit all substrate types
  • No more cold joints between the concrete slab and the hob, offering vastly superior waterproofing
  • MasterForm cast-in hobs are poured in with the slab. These come with legs that fix onto the formwork. This is poured at the same time as the slab, all poured as one to maximise efficiency
  • Hobs have the same density and structural integrity as the slab, allowing better support of load-bearing walls and minimising the risk of failure
  • The MasterForm hob acts like an upstand beam, further stiffening the slab at point load areas
  • Window and facade frames can immediately be measured and ordered, delivering savings to and speeding up the construction program
  • Support legs manufactured to correct heights
  • Corners, joiners and end caps are provided for the perfect finish
  • Special profiles are available, such as uneven hobs, precast flashing detail hobs
  • No more unnecessary time spent forming up and stripping formwork
  • No more extra site visits to drill and set up starter bars
  • Fixing onto metal deck instead of ply? No problem. We have complete systems to suit all substrate types
  • No more cold joints between the concrete slab and the hob, offering vastly superior waterproofing

Using the range of MasterForm products has had a very positive impact on our cycle times. Their team is always available with advice and recommendations for tricky and intricate formwork requirements.

Kosta Georgiou

Structures Manager, Hickory Group

MasterForm Hobs

The use of a permanent cast-in system for the creation of a monolithic hob/bund in the concrete slab is protected by Australian and International Intellectual Property Patents.

RELATED HOB FORMWORK PRODUCTS

Post-Fixed Hobs

  • MasterForm hobs can be ordered without supporting legs and retrofitted directly onto the concrete slab
  • You first pour the slab and then fix the hob later on
  • All MasterForm post-fixed hobs are designed so they can be fixed quickly and securely to the slab by using our unique, patented fixing system
  • Have been structurally certified, eliminating the need for extra dowel and lacing bars in most applications, saving you time and material costs
  • Corners, joiners and end caps are provided for the perfect finish
  • Only structurally rated post-fix and cast-in hob formwork system for use without reinforcement when used within defined parameters

Precast waterproof flashing Detail Hobs

  • Custom made to suit modified profiles
  • The perfect water detail for concrete panels bearing on a concrete deck
  • Allows for starter bars to be installed without concrete blowouts

MasterForm Metal Slab Edge Hobs

  • Made from durable steel
  • The quickest way to setup a stop end with an integral edge hob
  • No need to strip
  • Custom made to suit project requirements
  • Can include ferrules for balustrade/screen fixing

Perimeter Hobs Requiring An Off-Form External Face

  • An ideal solution for perimeter upstands and hobs where an off-form slab edge is required
  • Fixes easily to conventional edge formwork
  • Self-supporting and easy to setup
  • Manufactured to suit project requirements
  • Allows for a perfect finish on an off-form slab edge with no blemishes

AS 4654.2 Compliant Water Stop Hobs

  • Nominal 20mm upstand lip forms continuous water barrier in accordance with AS 4654.2
  • Can be membraned
  • 20mm upstand is 15mm thick, allowing it to be concealed with aluminium or timber skirting and can face in or out

Uneven Hobs

  • Manufactured to suit project requirements in both height and width
  • Allows or differing heights on each side of the hob and is designed to avoid conflict with reinforcement

Radius Hobs

  • Taken directly from the CAD files to ensure accuracy
  • Manufactured to custom height and width as required
  • Supplied with key plans for quick and accurate installation
  • Supplied with flat top legs set to height

How to Install
Our Cast In Hobs
For Concrete Pour

The faster, easier and cheaper solution to your
hobformwork needs!

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4 EASY STEPS

To Install Your Masterform Hobs

STEP 1 – SET THE LEGS

Mark the center line off the hob onto the formwork and align with the ‘V’ in the center of the hob leg base plate. screw fix legs onto either the ply or metal deck, ensuring all legs are rotated in the same direction. Legs should be spaced approx 1.2 – 1.5 metres apart, with a leg adjacent to each corner.

In situations where the bottom of the slab will be exposed we suggest fixing the legs onto our custom 25mm bar chairs. This will allow the concrete to flow under the plate, hiding it from view.

STEP 2 – FIX THE HOBS

Position hob over the legs and screw fix along the inner fold using the pre-drilled holes in the leg top plates as a guide.

We recommend using tie wire to further brace and secure the hobs as needed.

Position hob over the legs and screw fix along the inner fold using the pre-drilled holes in the leg top plates as a guide.

We recommend using tie wire to further brace and secure the hobs as needed.

STEP 3 – CONNECT THE HOBS

Create corners, join jobs and install end caps quickly and easily by using one of our MasterForm hob custom ancillary products.

STEP 4 – CONCRETE POUR

fill the slab area directly below the hob first and then fill the hob taking care to ensure that the concrete is still wet to avoid cold jointing.

IMPORTANT: Equally distribute the flow of concrete to either side of the hob leg during the pour, ensuring an even pressure is maintained along its length to avoid the hob from twisting.

REQUEST A QUOTE

fill the slab area directly below the hob first and then fill the hob taking care to ensure that the concrete is still wet to avoid cold jointing.

IMPORTANT: Equally distribute the flow of concrete to either side of the hob leg during the pour, ensuring an even pressure is maintained along its length to avoid the hob from twisting.

REQUEST A QUOTE

FINISHED FORMWORK

Sit back and enjoy the finished product.

You now have a monolithic cast-in hob that is the ideal start to a great build.

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FAQ

How Do MasterForm hobs save time on site?

MasterForm post-fix hobs are quick and easy to install and are a fully cast-in system therefore saving time on stripping.

Are MasterForm post-fix hobs easy to use?

MasterForm post fix hobs are installed with M8 x 100mm concrete screws at each hob spacer location (approx. 500mm crs.). Any reinforcement requirements are to be designed by the Project Engineer.

Are MasterForm cast-in hobs easy to use?

MasterForm cast-in hobs are provided with hob legs preset at the slab depth. The hob slips over the top cup and is screwed through the predrilled holes. Any reinforcement requirements are to be designed by the Project Engineer.

How do the support legs work on metal formwork?

MasterForm supply straddle brackets that adapt to the profile of the metal formwork system that are using. Simply confirm your profile with masterform.

Are MasterForm hobs rigid once installed and during the concrete pour?

As long as the wet concrete is uniformly placed around the support legs then very little movement is usually experienced.  Legs taller than 300mm usually require some stabilization with tie wire.  We also suggest some simple tie wire cross supports on the hob lengths as the guys on site feel necessary.

What length are MasterForm hob?

MasterForm hobs are 3m long.

Can MasterForm supply Radius profile hobs?

Yes. MasterForm will extract the profile directly from the architectural DWG background and supply you with a keyplan for quick and accurate installation.

What if I require a class 2 finish under the hobs?

MasterForm will provide you with 25mm plastic bar chairs to sit beneath the support legs to ensure a class 2 soffit.

How do we connect the MasterForm hob lengths?

MasterForm hobs are supplied with corners, joiners and end caps for a quick and tidy finish.

How do we order MasterForm hobs?

Simply send through your concrete profile plans and structural GA plans and masterform can schedule your project for you.

Do we need to waterproof masterForm hobs?

Yes.  All MasterForm hobs are manufactured with G275 Galvanized steel.  MasterForm can provide you with warranted systems from a number of suppliers recommended for use on our hobs upon request. Nothing more onerous than off-form hobs.

What lead times does MasterForm require for orders?

Typically 5-7 days from shop drawing approval however shorter time frames are possible.

Can we purchase MasterForm hobs anywhere in Australia?

All MasterForm hobs are manufactured in Melbourne and shipped anywhere in Australia on an express service.

Where have MasterForm hobs been used?

MasterForm is Australia’s leading hob manufacturer.  Our hobs have been used on projects all over the country including, Westside place Melbourne, Aurora in Melbourne, Capital Grand in Melbourne, The ribbon in Sydney, ParkOne in Sydney.

What is the benefit of using a preformed hob over an insitu formed hob?

MasterForm Hobs create an accurate and consistent hob profile that is easy for filling. The pre-fabricated hob eliminates the warping and twisting of timber formed hob. MasterForm Hobs also eliminates the need for coming back and stripping the timber away from the hob once the concrete is cured, saving considerable amounts of time.

Contact Our Team Today

If you require premium hobs for your project, contact MasterForm today by either filling in our online contact form or calling us on (03) 9457 3811 for a quote.