The House Sheathing calculator computes the number of 4x8 sheets (e.g., OSB or T1-11) needed for a basic structure with gable ends.
INSTRUCTIONS: Choose units and enter the following:
Sheathing (nS): The calculator returns the number of 4x8 sheets needed to cover the outer wall surface area. The surface area is also returned in square feet. However, this can be automatically converted to compatible units via the pull-down menu.
The House Sheathing equation computes the surface area of the walls of a building with gable ends and uses that to estimate the number of 4x8 sheets are required to cover it. It is useful in computing the amount of materials for outer wall like OSB or plywood under siding, or finished pressure treated boards like T1-11 panels.
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!
NOTE 2: Some stores carry plywood and OSB with thicknesses 1/32nd 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.
Using the dimensions of the framing to compute the area. Then compute the number of 4x8 sheets required to cover the framing. Modern construction techniques take advantage of the time saving achieved through using pneumatic nail guns. Nail guns are used to rapidly nail sheeting to roof trusses and walls saving time and money.
The number of nails that will be needed are determined by the pattern of nails. There are two different patterns for nails based on whether there is blocking that allows continuous edges or if clips (see picture) are used. The diagram shows the two patterns.
Functions to estimate material amounts for a stick-built building from the bottom (footers and foundation) up through framing, siding and roofing. This is useful for a cabin, tiny-house or even a backyard shed. The functions include the following:
Summary Function
Roofing Functions:
Framing Functions:
Foundation and Basement Functions: