The Screws for a Metal Hip Roof calculator computes the number of metal panel screws needed for a hip roof based on the dimensions.
INSTRUCTIONS: Choose units and enter the following:
- (S) Span of Roof
- (L) Length of Roof
- (P) Pitch (choose pitch from list)
- (oH) Overhang
Screws for Metal Hip Roof (nS): The calculator returns the number of screw for the metal panel hip roof and the total surface area (A) in square feet.
Metal Panel Screws are a specialized 
product that include a gasket to seal around the screw head and prevent moisture from penetrating the roof or siding through the screw hole, and a screw tip that cuts through the metal panels and is self-starting. Metal panel screws often come in painted colors to match the metal panels. The screws are used to attach metal panels to purlins or sheathing for a metal roof or to girts or sheathing for metal siding. Metal Panel Screws are typically used with a density of 75 screws per 100 square feet of metal roofing or siding area.
Metal Panel Screw Information
- 75 screws per 100 ft2 of roof surface area is the industry standard for screws in a metal roof.
- Common Screw Packaging Sizes: 1lb, 5lb, 20lb, 25lb, 30lb
- Common Metal Panel Screw Weights and Density
- #10 x 1" - 115 per pound
- #10 x 11/2" - 95 per pound
- #10 x 2" - 75 per pound
- #10 x 21/2" - 65 per pound
The current price of Screws for a Metal Roof is included in the C-Lok, Ag Panel, G-Rib price survey which includes the following:
Cost of Metal Screws (periodic survey)
- $0.09 USD/screw - Screws (with seal gasket) - dollars per screw
- Date Survey: 2/3/23
- Source of Pricing: CN Metals
Metal Panel Screws Calculator provides functions to compute the number of metal panel screws needed for a job based on the shape and dimensions of the roof or wall in metal panels as follows: 
- Screws for a Gabled Metal Roof
- Screws for a Metal Hip Roof
- Screws for a Metal Gambrel Roof
- Screws for a Metal Shed Roof
- Screws for a Metal Dormer
- Screws for Metal Shed or Run-in
- Screws for Metal Siding on a Gable End
- Screws for Metal Siding on a Gable End with Door
- Screws for Metal Siding Rectangular Wall
The Math / Science
A hip roof is basically a rectangular trapezoid volume has regular trapezoids in the front and back and triangles on the sides. The bottom and top rectangles are centered, form parallel planes and separated by the height.
Safety Tolerances
An addition of the TO parameter (default of 3") s added to the following dimensions.
- (r) Ridge Cap
- (sG) Snow Guard
- (j) Hip Covers
- (PL) Panel Length
- (aT) Angle Trim
It's better to have too much and have to cut it, than not enough.
Roof Calculators
- Gabled Roof
- Hip Roof
- Shed Roof
- Dormers
Building Calculators
- Total Building Materials Calculator
- Pitch of a Roof - Computes angle of incline in the roof in both degrees and rise over 12" run (e.g. 26.6o : 6/12) based on the length of the rise and run.
- Number of Trusses Needed for a Roof - number of trusses needed based on the roof width and the truss spacing.
- 4x8s needed for a roof - Calculates the number of 4x8 sheets needed to cover a roof.
- Roofing nails needed for a roof - Calculates the number of roofing nails needed for a roof in normal and high wind conditions.
- Number and Length of Metal Roof Panels - Computes the length and number of metal panels and trim pieces for a metal roof.
- Screws for a Metal Roof - Computes the number of screws needed for a metal roof.
- Number and Length of Purlins for a Roof - Computes the number of purlins for a roof based on dimensions and spacing.
- Number and Length of Rafters - Computes the number and length of rafter boards based on roof dimensions and spacing.
- Number and Length of Rafter and Collar ties - Computes the number and length of rafter ties and collar ties based on roof dimensions and spacing.
- Number and Length of wall top and bottom wall plates
- Number of Studs for a Room
- Number of Studs in a Wall
- Room Interior Area (wall and ceiling)
- Cubic Feet in a Room (volume)
- Number of 4x8 or 4x12 Sheets for a Room
- Number and Length of Floor Joists
- Number of Joist Hangers
- Compute the Cost of Floor Joists
- Compute iJoists for larger floors
- Compute the Number of 4x8 Sheets to cover the Deck or Floor
- Compute the number of Decking Boards to cover the deck or floor
Roofing Geometry Calculators