Zincalume Flat Sheet 450mm
The Zincalume flat sheet is a 450mm wide strip of 0.55mm BMT Zincalume steel, cut to length for wide custom flashings and capping work. The wider strip suits large flashing profiles that need a broad sheet, and the unpainted aluminium-zinc finish resists corrosion without painting. The price per metre includes GST, and the flashing tolerance of +200mm / -0mm ensures a precise fit.
Key Features
- 450mm wide Zincalume flat sheet
- 0.55mm BMT, heavier than a standard 0.42mm roof sheet
- Unpainted finish, corrosion resistant
- Cut to length for wide custom flashings
- Price per metre, including GST
- Flashing tolerance of +200mm / -0mm in length
Specifications
- Product: flat sheet
- Width: 450mm
- Material: Zincalume steel, 0.55mm BMT
- Length: cut to order, tolerance +200mm / -0mm
- Application: wide custom flashings, capping and folding
- Pricing: per metre including GST
How To Use It
Cut the flat sheet to the length you need and fold it on a brake to make the wide flashing profile for the job. The 450mm strip suits larger apron flashings, wide capping pieces and edge trims. The 0.55mm BMT steel is formable yet stiff enough to hold its shape, and the unpainted finish needs no painting.
Applications
- Wide custom flashing profiles made on site
- Large capping and edge trim pieces
- Zincalume roofs and coastal areas
- Where a non-standard wide profile is needed
What You Need To Complete The Job
Pair the flat sheet with a Zincalume apron flashing for a standard detail, and fix with Multifix roofing screws. For a wider strip see the 600mm flat sheet. Browse the Custom Flashing range for more.
Frequently Asked Questions
What is the 450mm flat sheet best for?
It is best for wide custom flashing profiles and capping pieces that need a broad sheet, such as a large apron or a wide edge trim.
How is it priced?
It is priced per metre including GST and cut to your required length with a tolerance of +200mm / -0mm.
Can I get it in Colorbond?
Yes. The same flat sheet is available in Colorbond for a colour-matched finish.
Can I get a wider sheet?
Yes. Wider flat sheets are available in 600mm, 750mm, 1050mm and 1200mm in Colorbond or Zincalume.
Can I order for delivery or pickup?
Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.




