Input benchmark – metal roofing

The input benchmarks have been developed in consultation with the Metal Roofing and Cladding Association of Australia.

They represent the industry norm and apply to metal roofers who work directly with household customers and are responsible for purchasing their own materials. The main activity for these businesses is the installation of metal roofing and cladding.

These benchmarks are current as at April 2015.

Input benchmark guide

The table below sets out input benchmarks for metal roofers.

You can use these benchmarks to compare and check your business performance to the metal roofing industry average.

Benchmark guide

Installation rate – two tradesmen (square metres per day)

40 – 50

Cost of materials as a percentage of the price charged to the customer

45 – 55

Whole house – typical job size (square metres)

150 – 170

Days to complete typical whole house job – two tradesmen


Price charged ($) per square metre

aluminium or zinc coated steel

30 – 51

colour coated steel

40 – 62


  • All dollar amounts are GST-inclusive.
  • Add extra for scaffolding when used.

Input benchmark – sales turnover

You can use these benchmarks to:

  • estimate your income
  • compare your income against the metal roofing industry average
  • check that your records accurately reflect your income.

Income guide

Metal roofing used per year (square metres) – two tradesman


Price charged ($) per square metre

aluminium or zinc coated steel

30 – 51

colour coated steel

40 – 62

Sales turnover range ($)

330,000 – 682,000

Days worked per year



  • All dollar amounts are GST-inclusive
  • Add extra for scaffolding and edge protection when used

Input benchmark examples

Example 1

Kevin runs a metal roof installation business and has one sub-contractor working for him. They work on household jobs only. They can install 50 square metres per day and Kevin charges an average of $45 per square metre (including materials).

Using the benchmarks, Kevin estimates that he has installed 11,000 square metres of metal roofing with income of $495,000.

Kevin's records show reported income of $492,000, which is within the benchmarks. He is happy with his record keeping.

Example 2

Joe has a metal roofing business with one employee. It has been a busy year due to storms in the local area. Joe worked 230 days in the year to fit in the extra work. On average he installed 50 square metres per day. He charges $60 per square metre for colour coated steel and $50 per square metre for aluminium or zinc coated steel.

Joe's records show that he purchased 11,500 square metres of metal roofing. Two-thirds of the jobs completed used colour coated steel.

Using the benchmarks, Joe estimates income of $650,900 for the year.

Joe's records show income of $575,000, which is less than he expected. He checks his quote book and finds several cash jobs which he has not included. This is an additional $75,000 in income.

Joe recalculates his income for the year at $650,000, which is within the benchmarks. Joe is happy with his records but asks his bookkeeper for advice on keeping better records.

End of example
    Last modified: 25 Feb 2016QC 43680