Dimond Steelspan 900 Roofing Profile

Dimond Steelspan 900 Roofing & Cladding

Suitable for 3° and greater

900mm Cover width

970mm Sheet width

Steelspan 900 has a high rib

Suitable for light commercial

Suitable for commercial

5 ribs per sheet

Steelspan 900 is manufactured in Hamilton.

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Dimond Steelspan 900 Profile

Steelspan 900 is an economic roofing and cladding profile designed for long spans whilst maintaining an appealing aesthetic.

Dimond Steelspan 900 Profile

Dimond Steelspan 900 Profile Dimensions



Sheet width



3° (approx 1:20)

all dimensions given are nominal.

Sheet Tolerances

Sheet width: ±5mm
Sheet width for aluminium +0, -15. If sheet cover widths are critical, advise Dimond at time of order.
Sheet length: +10mm, –0mm. For horizontal wall cladding where notified at time of order of intended use, tighter tolerances can be achieved +3mm, –0mm.

Profile Properties

Material Options Steel 0.4mm* Steel 0.55mm Steel 0.75mm* Aluminium 0.7mm* Aluminium 0.9mm Duraclad 1.7mm (total thickness)
Nominal weight/lineal metre (kg/m) n/a 5.55 7.47 2.31 2.96 2.70
Drape curved roof - min. radius (m) n/a 120 120 n/r 120 30
Purlin spacings for drape curved roof (mm) (1) n/a 2400 2400 n/r 2400 1500
Machine crimp curved -roof min. radius (mm) n/a n/a n/a n/a n/a n/a
Unsupported overhang (2) n/a 450 600 250 350 250

* Available only on request, subject to minimum order quantities. Check availability with Dimond.

(1) Recommended maximum purlin spacing at minimum radius

(2) Based on 1.1kN point load support, but not intended for roof access.

n/r – not recommended

n/a – not available

Roll-forming facility


Manufacturing location for Duraclad


Sheet lengths: Steelspan 900 is custom run to order. Where long sheets are used consideration must be given to:

  • special transportation licences for sheet lengths over 25m
  • site access for special lifting equipment
  • fixing techniques to accommodate thermal expansion.
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