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Trusses

Trusses

Hopley's Trusses

At Midalia Steel we are proud to be the distributor of Hopley's Trusses in Western Australia. Hopley's Steel Trusses / joists are manufactured from high tensile, light weight galvanised steel for durability and little or no maintenance. Their obvious advantages over timber products are; stability without warping or shrinking, lack of costly off cuts, ease of handling during construction. This is a modular system with a range of fittings fastened with self-drilling fasteners. The open web design allows for all pass through services such as pipes and cables. Flat surfaces allow for easy fixing of ceilings and flooring.

  • FLOORING: Domestic, Commercial & Industrial
  • ROOFING: General
  • STRUCTURES: Ideal for lean-to's and sheds.

Products Categories

  • Hopley's Trusses
  • Hopely's Portal Rafter
  • Hopley's Standard Fittings
Pricing has been temporarily removed, please fill out your shopping cart and we will send you back an official quote.

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DESIGN SERVICE FOR YOU...

MIDALIA STEEL can arrange to have your job professionally designed using Hopley's in house engineers and design draftsmen. All you need to do is provide your local branch with all the relevant sizes and rough layout and the Hopley's engineers will sort out all your design issues for you - to engineering specifications.

The following table is a guide for roofing spans with an expected live load of 0.25kPa, dead load 0.13kPa, and maximum deflection span/180:

 

PLEASE NOTE:  

The "HJ" range of joists are a roll form product which we keep in standard lengths.  Pricing is inclusive of freight ex-East to our store.

The "HB" range of joists are custom made to order from square tube and not stocked in W.A.   Due to the weight and nature of them being "mostly air" - the freight cost from East to W.A. is quite significant.  All the "HB" range will be quoted on application.

ROOFING SPANS
ALLOWABLE SPACING mm - SIMPLY SUPPORTED
SPAN (m)HJ150HJ200HJ250HJ300HJ350HJ450
3.53600
4.027004200
4.521003300
5.0170026003300
6.0120018002300
7.0900130017002400
8.0650100013001800
9.08001000120044005800
10.0800110033004700
11.0090025003900
12.018003200

The following span table is for single spans; for multiple spans consult your engineer. Refer to AS 1170 Part 1 - 1989 Domestic Floors. Floor thickness - Minimum 20mm Plywood or Pressed Particle Board.
Live load 1.5kPa Dead load 0.25kPa. Maximum deflection span/500:

FLOORING SPANS - DOMESTIC
ALLOWABLE SPACING mm - SIMPLY SUPPORTED
SPACING (mm)HJ150HJ200HJ250HJ300HJ350HJ450
4503.54.24.85.57.38.7
6003.23.84.35.06.67.9

This flooring span - industrial table is based on Dead load 0.3kPa and maximum deflection span/250:

FLOORING SPANS - INDUSTRIAL
ALLOWABLE SPACING mm - SIMPLY SUPPORTED
LIVE LOAD (mm)450 c/c   600 c/c450 c/c   600 c/c450 c/c   600 c/c450 c/c   600 c/c450 c/c   600 c/c450 c/c   600 c/c
4503.5            2.94.2            3.64.6            4.05.6            4.77.4            6.78.8            8.0
6003.2            2.13.0            2.63.3            2.93.9            3.46.0            5.27.1              6.4

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