How far can a 100mm, 150mm, 200mm & 250 mm C purlin span?. The span capability of C purlins depends on various factors including the material, thickness, and design specifications. This article helps to determine the appropriate span for your specific C purlin dimensions and load requirements.
C Purlins are used as roofing sheets at such places which needs sturdy and highly durable steel framing supports for industrial and commercial construction. In simple language, C purlins are a form of steel beams that run across the length of the roofing structure and provides much-needed support. C purlins are at 90 degrees and appear to be in the form of the alphabet “C” that’s why it name C pulin.
C purlins are used as purlins over walls, rafters, floor joists and studs for walls. In the field of architecture, structural engineering or building, a purlin or historically known as purline, purloyne, purling, C perling is a horizontal beam made of steel used for structural support in buildings, most commonly in a roof. It take all the load coming from roof sheets, rafter and withstand with and safely vertically downward transfer to stud or posts.
C Purlin is a horizontal beam or bar used for structural support in buildings, most commonly in a roof. C Purlins are used for industrial buildings, garages, verandahs and carports. The “C” shaped sections structural elements feature two equally sized flanges and are ideal for structural support in walls and as floor joists in addition to roofs.
C purlin is you have another option to select purlin made of steel. Steel purlin is a lightweight, straight, stable and more accurate. Steel purlin can be withstand in change of temperature by expansion and contraction. Steel purlin are usually manufactured with galvanized steel coated with zinc to provide rust protection and finally it can be finished with paint.
In this article you know about how far can a 100mm, 150mm, 200mm & 250 mm C purlin span that will help you in better understanding and to figure out or estimate of purlin size and their depth and help in important for you to use the right size C purlin.
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How far can a 100mm, 150mm, 200mm & 250 mm C purlin span
The standard sizes for C purlins are produced in nominal depth of 100mm (a 4 inch), 150mm (a 6 inch), 200mm (an 8 inch) and 250mm (a 10 inch). The spacing between C purlins depend on the type of roof cover used and their thickness as function of purlins is to carry roof cover sheet and safely transfer the load they carry to trusses, therefore the dimension of the roof cover determines their spacing.
Normally a spacing of C purlin is around 900mm (0.9m), 1200mm (1.2m) and 1500mm (1.5m). This can be spaced 1.2 metres apart when using sheeting with a thickness of 0.7mm, and 1 metre when using 0.5mm sheeting. Exact requirements will vary, but as a rough guide, this is a good rule of thumb to follow.
A typical 100mm (4″) thick C purlin can allow span up to 3.5m to 4.7m, a 150mm (6″) thick C purlin can allow span up to 5.5m to 8.7m, a 200mm (8″) thick C purlin can allow span up to 7.6m to 11.5m and a 250mm (10″) thick C purlin can allow span up to 10.8m to 13.7m when spaced 1200mm at centre to centre and wind velocity of 33 m/s.
In general, a 4-inch c purlin can span from 10 to 15 feet, while a 6-inch c purlin can span from 18 to 28 feet. Likewise, an 8-inch c purlin can span from 25 to 38 feet, while a 10-inch c purlin can span from 36 to 45 feet.
How far can a 100mm C purlin span
As general guidelines and rules, different gradation and weight, a 100mm (4″) thick C purlin can allow span up to 3.5m to 4.7m far distance when spaced 1200mm at centre to centre and wind velocity of 33 m/s. Thus 100mm C purlin will allow to span 3.5m to 4.7m far. Thus a 100mm depth of C purlin is most suitable for 3m to 4m span which can safely transfer the load they carry to trusses.
How far can a 150mm C purlin span
As general guidelines and rules, different gradation and weight, a 150mm (6″) thick C purlin can allow span up to 5.5m to 8.7m far distance when spaced 1200mm at centre to centre and wind velocity of 33 m/s. Thus 150mm C purlin will allow to span 5.5m to 8.7m far. Thus a 150mm depth of C purlin is most suitable for 5m to 8m span which can safely transfer the load they carry to trusses.
How far can a 200mm C purlin span
As general guidelines and rules, different gradation and weight, a 200mm (8″) thick C purlin can allow span up to 7.6m to 11.5m far distance when spaced 1200mm at centre to centre and wind velocity of 33 m/s. Thus 200mm C purlin will allow to span 7.6m to 11.5m far. Thus a 200mm depth of C purlin is most suitable for 7m to 11m span which can safely transfer the load they carry to trusses.
How far can a 250mm C purlin span
As general guidelines and rules, different gradation and weight, a 250mm (10″) thick C purlin can allow span up to 10.8m to 13.7m far distance when spaced 1200mm at centre to centre and wind velocity of 33 m/s. Thus 250mm C purlin will allow to span 10.8m to 13.6m far. Thus a 250mm depth of C purlin is most suitable for 10m to 13m span which can safely transfer the load they carry to trusses.
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Conclusion:-
● A 100mm C purlin can allow span up to 3.5m to 4.7m far distance when spaced @1200mm C/C and wind velocity @33 m/s.
● A 150mm C purlin can allow span up to 5.5m to 8.7m far distance when spaced @1200mm C/C and wind velocity @33 m/s.
● A 200mm C purlin can allow span up to 7.6m to 11.5m far distance when spaced @1200mm C/C and wind velocity @33 m/s.
● A 250mm C purlin can allow span up to 10.8m to 13.7m far distance when spaced @1200mm C/C and wind velocity @33 m/s.