Construction
Roofing Sheet Calculator
Calculate the number of roofing sheets, ridge caps, screws, and total cost.
Roof Shape
Length
m
Roof length (longest side)
Width
m
Roof width (shorter side)
Height / Rise
m
Height of triangle/trapezoid
Sheet Dimensions
m
×
m
Standard sheet size (length × width)
Material Prices
Per Sheet
$
Per Screw (100 pcs)
$
Sheet price per piece, screws per 100 pieces
Coverage 0%
Total Cost
$0
estimated total cost
Sheets Required 0
Ridge Caps 0
Screws Required 0
Roof Area 0 m²

📊 Material Breakdown

Material Quantity Unit Cost Total Cost

How the formula works

Area = Length × Width (Rectangle)  |  Sheets = Area ÷ (Sheet Length × Sheet Width)  |  Add 10% Wastage
  • Rectangle Area = Length × Width
  • Triangle Area = ½ × Base × Height
  • Trapezoid Area = ½ × (Top + Bottom) × Height
  • Sheets Required = (Area × 1.1) ÷ (Sheet Length × Sheet Width)
  • Ridge Caps = Length of ridge ÷ Standard cap length (2m)
  • Screws = Approximately 6-8 screws per sheet