Sheathing for Hip Roof

The Sheathing for Hip Roof calculator computes the number of 4x8s need to cover the surface area of a hip roof based on the dimensions.  The surface area includes the four sides (faces).

INSTRUCTIONS: Choose units and enter the following:

• (S) Span of Roof
• (L) Length of Roof
• (P) Pitch (choose pitch from list)
• (oH) Overhang

Hip Roof Sheathing (sA): The calculator returns the area in square feet (ft²) and the number of 4x8s sheets to cover roof.

Plywood and OSB Price Survey Information

The following is web survey of 4x8 sheets of plywood and OSB.  It provides the date of the web survey, the store and several price points on items that were advertised on the store's website.  This is for convenience only.  Local pricing should ALWAYS be used!

• Survey Date: 4/26/24
• Survey Store: Menards
  • Price of 4x8 3/4" Plywood: $35.55 USD
  • Price of 4x8 5/8" Plywood: $30.78 USD
  • Price of 4x8 1/2" Plywood: $28.95 USD
  • Price of 4x8 3/8" Plywood: $24.03 USD
  • Price of 4x8 3/4" OSB: $30.49 USD
  • Price of 4x8 5/8" OSB: $23.87 USD
  • Price of 4x8 1/2" OSB: $22.45 USD
  • Price of 4x8 1/4" OSB: $18.98 USD
  • Price of 4x8 3/4" Pressure Treated Plywood: $50.98 USD
  • Price of 4x8 1/2" Pressure Treated Plywood: $44.84 USD
  • Price of 4x8 5/8" Grooved Panel Siding: $53.39 USD
  • Price of 4x8 1/2" Grooved Panel Siding: $48.99 USD

NOTE 2: Some stores carry plywood and OSB with thicknesses 1/32^nd smaller than others.  Therefore, 3/4" might be represented by 23/32", 5/8" by 19/32", 1/2" by 15/32", and 3/8" by 11/32".

CAUTION: The pricing information provided is for calculating convenience with NO implied guarantees to the accuracy of the values listed. Authoritative sources should be sought to confirm any value before risking health or wealth on the veracity of the data. Furthermore, Calc gives no guarantee that you will be able to buy products at listed prices or even if they will be available.  The data provided is purely a convenience for making estimates, so we strongly recommend that one ALWAYS use local pricing and authoritative specifications.

The Pricing Data can be used for the Subflooring Material Cost Calculator, CLICK HERE or in the Cost of Plywood Calculator,CLICK HERE.

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.

Hip Roof Calculator

The Hip Roof calculators compute the area, ridge lengths and materials required for a basic hip roof.

• Surface Area of Hip Roof: This computes the surface area of the four faces of a hip roof based on the dimensions.  The calculator also includes the number of 4x8s, bundles of shingles, bundles of ridge shingles and the number of roofing nails needed.
• Sheathing for Hip Roof: This computes the number of 4x8s need to cover the surface area of a hip roof based on the dimensions.
• Shingles for Hip Roof: This computes the number of standard and ridge shingles and roofing nails for a hip roof based on the dimensions.
• Cost of Shingles for Hip Roof: This computes the number of standard shingles for a hip roof based on the dimensions of the roof and size of the shingles and the unit price of a bundle of shingles to estimate cost of shingles for a hip roof.
• Roofing Nails for Hip Roof: This computes the number of roofing nails to shingle a hip roof based on the dimensions under normal and high wind conditions.
• Metal for Hip Roof: This computes the metal roof materials, panels and trim, for a hip roof based on the dimensions of the roof and width of the panels.  Trim includes ridge cap, angle trim, and snow guard.  It also includes the number of metal panel screws needed.
• Screws for Metal Hip Roof: This computes the number of metal panel screws needed for a hip roof based on the dimensions.
• Purlins for Hip Roof: This computes the total number and length of purlins (roof support boards) for a hip roof based on the ridge length of the roof, the roof pitch and the span of the roof.
• Underlayment for Hip Roof: This computes the surface area of a hip roof based on the dimensions and then uses the surface area to compute the cost of underlayment based on the unit price (price per square feet) of underlayment material.
• Surface area for Double Hip Roof: This computes the surface area of a hip roof with a hip roof dormer based on the dimensions and provides the number of 4x8 sheets, bundles of shingles, bundles of ridge shingles, length of flashing, and number of roofing nails for normal and high wind conditions.
• Hip Roof Geometries: This computes the metrics associated with of trapezoid pyramid shape of a hip roof based on the dimensions

A hip roof is a type of roof design where all sides slope downwards to the walls, usually with a fairly gentle slope. Each side of the roof typically has two slopes that meet at the top to form a ridge. The outer edges of the roof are angled upwards, creating a pyramid-like shape or trapezoidal shape.

Hip roofs are known for their stability and resistance to strong winds, making them popular in areas prone to hurricanes or high winds. They also provide good drainage, as rainwater easily runs off all sides of the roof.

Hip roofs are commonly found on a variety of structures including residential homes, barns, and some commercial buildings. They can be more complex to construct than simpler roof designs like gable roofs, but they offer advantages in terms of durability and aesthetics.

Roof Types

Roofing Calculators