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Joist Framing Calc

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The Joist Framing Calc has 14 functions and data items to compute the number, cost, and spacing of joists and i-joists.  This also includes the number of joist hangers and the maximum span of joists.

Joist Calculators

  • Floor Joist Count:  Floor joist framing with on center spacing.Computes the number of joists (joists and end plates) and joist ties required for a floor or deck based on the dimension of the room or deck and the on-center joist separation. 
  • Floor Joist Cost: Estimates the cost of Floor Joist boards (joists and end plates) required for a floor or deck based on the dimensions of the deck, spacing of joists and unit cost of joist boards.
  • Joist Hanger Count:Joist hanger Computes the number of joist hangers required for a deck based on the width of the deck and the spacing of joists.
  • I-Joist Count: Computes the the number of I-Joist boards required to cover a span (width) based on the size of the span and spacing of the I-Joists.
  • Maximum Joist Span: Computes the span length of a (1,200 pounds per square inch fiber stress) wood joist based on the live load, spacing, board width (e.g., 2x6 vs 2x10) and whether the joist need to be extra stiff for materials attached such as plaster below them. 
  • Joists on Beams: Computes the number of joists (2x dimensional lumber or i-joists), number of beams, number of joist hangers, and length of plate boards needed for a floor or deck with a span that might require one or more beams.
  • On Center Spacing: Computes the even spacing between a number of objects (e.g. posts, studs, joists, rafters, trusses, lights, rebars) over a specified length or distance.

2x6 Price Survey

The 2x6 Lumber Pricing table contains recent lumber prices for 2x6 of a variety of lengths with prices  from Lowes, Home Depot, Menards and potentially other stores based on their web sites.

This table is a repository of pricing data for common lumber (2x6's) as surveyed from the websites of major lumber retailers in the United States.  

2x6 price survey:

All prices are in U.S. dollars and based on searches of nationally advertised prices from the provider's web sites.   Search string: "kiln dried 2x6 lumber" is used in the retailer's website.  The term two by six (2x6) refers to the rough cut dimensions of construction grade lumber.  The typical 2x6 purchased at a lumber yard is actually 112" x 512".   Nonetheless, the term 2x6 persists. 

These values can be used in the Stud Framing Calculator  and the Joist Framing Calculator.

NOTE:  Local pricing should ALWAYS, ALWAYS, ALWAYS be used!  These price points are for estimation convenience only, and there is no guarantee on the prices of the product nor of their availability at the stated price.

2x8 Price Survey

The 2x8 Lumber Pricing table contains recent lumber prices for 2x8 of a variety of lengths with prices  from Lowes, Home Depot, Menards and potentially other stores based on their web sites.

This table is a repository of pricing data for common lumber (2x8's) as surveyed from the websites of major lumber retailers in the United States.  

The most recent 2x8 lumber price survey information is:

All prices are in U.S. dollars and based on searches of nationally advertised prices from the provider's web sites.   Search string: "kiln dried 2x8 lumber" is used in the retailer's website.  The term two by eight (2x8) refers to the rough cut dimensions of construction grade lumber.  However, the typical 2x8 purchased at a lumber yard is actually 112" x 712".   Nonetheless, the term 2x8 persists. These values can be used in the Joist Framing Calculator.

NOTE:  Local pricing should ALWAYS, ALWAYS, ALWAYS be used!  These price points are for estimation convenience only, and there is no guarantee on the prices of the product nor of their availability at the stated price.

2x10 Price Survey

The 2x10 Lumber Pricing table contains recent lumber prices for 2x10 of a variety of lengths with prices  from Lowes, Home Depot, Menards and potentially other stores based on their web sites.

This table is a repository of pricing data for common lumber (2x10's) as surveyed from the websites of major lumber retailers in the United States.  

The most recent 2x10 lumber price survey information is:

All prices are in U.S. dollars and based on searches of nationally advertised prices from the provider's web sites.   Search string: "kiln dried 2x10 lumber" is used in the retailer's website.  The term two by ten (2x10) refers to the rough cut dimensions of construction grade lumber.  The typical 2x10 purchased at a lumber yard is actually 112" x 9 12".   Nonetheless, the term 2x10 persists. These values can be used in the Joist Framing Calculator.

NOTE:  Local pricing should ALWAYS, ALWAYS, ALWAYS be used!  These price points are for estimation convenience only, and there is no guarantee on the prices of the product nor of their availability at the stated price.

2x12 Price Survey

The 2x12 Lumber Pricing table contains recent lumber prices for 2x12 of a variety of lengths with prices  from Lowes, Home Depot, Menards and potentially other stores based on their web sites.

This table is a repository of pricing data for common lumber (2x12's) as surveyed from the websites of major lumber retailers in the United States.  

The most recent 2x12 lumber price survey information is:

All prices are in U.S. dollars and based on searches of nationally advertised prices from the provider's web sites.   Search string: "kiln dried 2x12 lumber" is used in the retailer's website.  The term two by twelve (2x12) refers to the rough cut dimensions of construction grade lumber.  The typical 2x12 purchased at a lumber yard is actually 112" x 1112".   Nonetheless, the term 2x12 persists. These values can be used in the Joist Framing Calculator.

NOTE:  Local pricing should ALWAYS, ALWAYS, ALWAYS be used!  These price points are for estimation convenience only, and there is no guarantee on the prices of the product nor of their availability at the stated price.

Deck Builder Calculator provides estimates for a simple rectangular deck project.  Calculator functions include the following:

Framing Calculators:Pole barn framing with studs, girts, trusses and purlins.

  • Pole Barns: Calculates the materials for a pole barn including concrete in the pears, posts, girts, trusses, purlins and metal for the roof and siding.
  • Simple Building Calculator: This provides material estimations functions and data 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.
  • Joists: Calculates the number and length of joists for a deck or floor.Gambrel barn roof with joists, rafters and purlins.
  • Stud Framing: Calculates the number of studs, plate boards and blocking (2x4s, 2x6s) needed to frame a wall or room.
  • Trusses and Rafters: Calculates the number of trusses and the lengths of rafter boards for various shaped roof structures including gable, gambrel, hip roof, pyramid and shed roof.Shed roof with rafters and purlins.
  • Purlins and Girts Calc: Computes the number of purlins and girts needed for a wood framed structure of different shapes (gable, gambrel, hip roof, dormers)
  • 4x8s: Calculates the number of 4x8s needed for roofing, sheathing, subfloors, forms for poured concrete for various shaped buildings.

 

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