Price per sheet depends on gauge, profile, finish, sheet length, and accessories. Understanding these variables helps you plan accurately and avoid unexpected overruns:

1. Gauge & Thickness
   28G: Affordable but thinner, best for temporary or low‑load structures. 26G: Heavier, ideal for permanent homes and coastal areas. The difference in price is offset by longevity—thicker gauges often cost less over the lifespan of the roof.
2. Profile Type
   Box profiles typically cost slightly more than corrugated sheets due to their design and material requirements. However, they offer better water shedding and aesthetics.
3. Finish & Color
   Matte and UV‑resistant finishes last longer and maintain color. Darker colors may fade faster if not UV‑protected. Premium finishes add a bit to the initial cost but reduce repainting needs.
4. Accessories & Hidden Costs
   Remember to budget for: Ridge caps, valleys, screws, gutter systems, delivery (though Ngao Mabati often includes free nationwide delivery) and kkilled labor.
5. Measuring Accurately
   A poorly estimated BOQ can inflate costs. Use exact roof dimensions or have a professional site visit. Consider overlaps and wastage.