Stud all walls with 2x2 timber
Supply 100mm rock wool to fill new created cavity's in walls and ceiling.
Supply and install pink back fire proof plaster boards for walls and ceiling
All materials and labour included
All area to be covered approx 92 sqm

Remove 8x4 sheets of cladding and stud work on all 4 walls
Stud all walls and ceiling with 2x2 timber
Supply 100mm rock wool to fill new created cavity's in walls and ceiling.
Supply and install pink back fire proof plaster boards for walls and ceiling
All materials and labour included
All area to be covered approx 90 sqm