Purlin and Girt Calculators

• Purlins for a Gabled Roof: 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.
• Purlins for Dormers: Computes the total number and length of purlins for needed for one or more roof dormers based on the dimensions.
• Purlins for a Gambrel Roof: Computes the length and number of rows of purlins needed for a gambrel roof based on the dimensions.
• Purlins for a Hip Roof: Computes the total number and length of purlins for a hip roof based on the ridge length of the roof, the roof pitch, the span of the roof and purlin spacing
• Purlins for a Pyramid Roof: Computes the total number and length of purlins for a pyramid roof based on the span of the roof, overhang, the roof pitch and the purlin spacing.
• Purlins for a Shed Roof: Computes the total number and length of purlins for a single sloped roof based on the span, ridge length and the front and back overhangs and the purlin spacing.
• Purlins and Girts for a Shed:  Computes the total number and length of purlins for the roof and girts for the walls based on the purlin and girt spacing and the ridge length of the roof, the front and back heights, the width (span) of the building and the front and back overhangs.
• Girts for a Building: Computes the number of rows of girts and their lengths for a building
• Pole Barn Materials: Computes the top to bottom framing (including purlins and girts), siding and roofing materials needed for a pole barn based on a few dimension.