Steel Granny Flat Frame Kits

Supply your plans. We'll handle the rest.

Design, fabrication, and delivery to site.


Thinking about adding a granny flat? Newcastle Steel Frames & Trusses can take your approved plans and turn them into a precision-engineered steel frame kit, ready for delivery to your site.


Our in-house project detailers will work directly from your architectural or engineering drawings to design the full frame:  walls, roof trusses, and floor system, before fabricating everything at our Morisset facility.

Whether you're a builder pricing up a job or an owner builder working through the process for the first time, we've done this before.


How it Works

1.

Supply Your Plans

Send us your approved drawings.

2.

Design & Detail

Our detailers model the complete steel frame.

3.

Fabrication & Delivery

Fabricated from BlueScope TRUECORE® steel and delivered to site.