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The Pole Barn Calculator contains functions to compute the construction materials for a pole barn with concrete piers, a slab, wood framing, roof trusses for a normal gabled roof and metal panels and trim for the roof and siding.

**Gable Roof Metal**: This estimates the materials needed for a metal roof for a simple gabled roof based on the roof dimensions.**Purlins for a Roof**: This computes the total number and length of purlins for a simple gable roof based on the ridge length of the roof, the roof pitch and the span of the roof.**Trusses Needed for Roof**: This computes the number of trusses needed for a roof based on the ridge length and spacing.**Metal Siding for Gable Ends**: This computes the metal siding materials (vertical panels) for a wall under a gable roof end based on the dimensions.**Metal Siding for Gable End with Door**: This computes the metal siding materials for a wall under a gable roof end based on the dimensions.**Girts for a Building**: This computes the number of rows of girts and their lengths for a building.**Wall Beams for a Building**: This computes the lengths beams for the outer wall of a building.**Posts for a Building:**This computes the number of vertical posts for a building based on dimensions and spacing.**Rebar and Concrete in a Slab**: This computes the total length and weight of rebar and the volume of concrete needed for a slab.**Piers for a Building**: This computes the number of piers for a building and the amount of concrete needed.**Pole Barn Materials**: This computes the top to bottom framing and roofing materials needed for a pole barn (see picture) based on a few dimension.**Pole Barn Metal Roof and Siding Cost**: This uses an estimated the linear feet of metal panels needed for a pole barn with a door way, and provides an estimated cost for the metal panels for the roof and siding based on a the dimension and cost per linear foot of panels.**Corrugated Metal Paint or Coating Volume**: This estimates the volume of paint or other coating (e.g., spray insulation) is needed for a corrugated surface.

**IMPORTANT NOTE**: **Confirm all calculations with authoritative sources** such as architectural drawings before risking health or wealth on the results of any calculator, and **ALWAYS adhere to government approved building codes**.