Modern Building Product

You can rely on Modern Building Product for the wholesale distribution of a range of industrial and general steel fastening, bracing and complimentary products.

Our latest innovation, DonoBrace, is New Zealand's only dynamically tested rod-bracing system, which boasts a number of points of difference over and above competing products.

* Note: Shed Fix Ltd was rebranded to Modern Building Product in February 2018.

Contact Us

Contact Warren for DonoBrace, Fasteners, Personal Access Doors and Vermin-Proof Bottom Girt.

Contact Gary for ModnColour and Wall Board & Panel.



The booklet includes information on testing, installation, design/dimensions and guidance for structural engineers.

View the DonoBrace information booklet

Dynamic Testing Video

View the dynamic testing video of the DonoBrace - DB25EC

Blocks, Revit and Archicad Objects


ModnColour pre-coated metals are manufactured specifically for use in New Zealand in accordance with standards AS 1397:2011 and NZ/AS 2728:2013. Please contact Gary Hall for more information.

Find out more

Wall board and panel

Modnboard / Modnpanel

The unique, patented Modnpanel prefabricated wall system consists of two Modnboard sheets encasing a layer of insulation.

The system is eco-friendly, energy-efficient and fire resistant, making it a sustainable building option which provides a safer living environment than any other in the market.

Modnpanel features include:

  • Non-combustible, zero flame and smoke spread, 180/240 rated
  • All structural elements are made from natural resources, which are bio-degradable, with no toxins or contaminants
  • Very environmentally friendly to produce (all natural minerals and resources)
  • No hazardous materials used* – Calcium silica free, formaldehyde free, asbestos free *(Contains fibreglass mesh for reinforcing)
  • Mould and insect proof – Inert, inedible, non-toxic and hypoallergenic
  • Delivered to site ready to infill bays. Penetrations for windows and doors are simply cut out to plan, using a sabre saw or skill saw


The ThermaTuff system incorporates Donovan Group's proprietary pre-engineered building system with our patented structural insulated panel system - Modnpanel.

The flexibility of the system gives consumers the ability to custom-design their project, while having the assurance of an energy-efficient, affordable, eco-friendly and fireproof building that can be erected in record time.

Galvanised columns and coldform steel rafters provided a strong vermin-resistant frame. The fully bolted, part-marked system is based on commercial technology which means erection is fast and simple. Once the frame is in place, the ModnPanel infill panels are locked into place using our bespoke eaves girt system.The system is completely pre-manufactured with all the necessary parts arriving on site as a kitset.

Please contact Gary Hall for more information.

Fasteners Catalogue

View the Fasteners Catalogue

Personal Access Doors

View the PA Door Flyer

Vermin-proof Bottom Girt

View the Vermin-Proof Bottom Girt details