Hunt Enginnering

 

Innovative Design, High Quality Fabrication, Neat Appearance and Light Weight Construction

 

Special Applications

Although commonly referred to as a joist, the HJ & HB range of products are ideal for use as a truss or rafter in all types of roofing.

Skillion or gable constructions are suited to our joists for use in domestic, industrial and agricultural areas. ie. houses, carports, garages, factories, farm sheds and lean-to’s.

They may also be used for hanging beams and suspended ceilings.

Hopleys Joists may be powder coated in a range of fashion colours to make them a design feature on internal application

Roofing Span Tables (Monoslope)

Hopleys Joists may be powder coated in a range of fashion colours to make them a design feature on internal applications.

Span - Maximum Allowable Spacing, Simply Supported

MetresHJ150HJ200HJ250HJ300HB350HB450
3.5 3600
4.0 2700 4200
4.5 2100 3300 3600
5.0 1700 2600 3300 3600
6.0 1200 1800 2300 3000
7.0 900 1300 1700 2400 7000
8.0 650 1000 1300 1800 5600 7000
9.0 800 1000 1200 4400 5800
10.0 800 1100 3400 4700
11.0 900 2500 3900
12.0 1800 3200

Dead Load 0.13kPa, Live Load 0.25kPa, Maximum Deflection Span / 180

This table may also be used for wind uplift to a maximum of 0.4kPa with suitable lateral restraints. Where wind load governs, ie., in excess of 0.4kPa, the span shall be reduced. No provision has been made for the 1.3kN concentrated load. Where joist ends have rigid connections or are over multiple supports that spans may be increased. Consult your/our engineer for details.

Portal Frames

Hopleys open web light weight steel joists are an economical solution for portal frames. Typical applications include farm sheds, machine and hay sheds, horse sheds, garages and carports.


 

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The obvious advantages over timber products are stability without warping or shrinking, a lack of costly off cuts and ease of handling during construction.