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SR30+ wide

1000mm cover width

PLAIN galvanised as standard, with polyester white or additional coatings available for enhanced protection in aggressive environments.

CALL NOW: 01787 275 055

Nationwide delivery

24 hour delivery

24 hour support

PLAIN OR COATED

SR30+ - Trapezoidal Roof Deck Profile

A sinusoidal profile engineered for short spans, canopies and light structures. 1000mm cover width maximises coverage rate and minimises joints.

1000mm cover width is the widest in the sinusoidal range, reducing the number of sheets needed and minimising side laps and joins.

The 30mm depth is engineered for short spans (1–2.3m). No over-specification. Lower material weight means less freight and easier on-site handling and is cost efficient.

Watch this short video for a quick explanation!

Efficient Spanning Capability
With its 30mm profile depth and gauges of 0.7mm or 0.9mm, SR30+ achieves reliable spans across common purlin spacings, minimising the need for extra secondary steelwork. This reduces installation time and overall project costs.
Lightweight and Flexible
At only 6.66–8.57 kg/m² (depending on gauge), SR30+ is lightweight yet robust. Its 1000mm wide sheets optimise coverage, speeding up laying and reducing labour time on site.
Long Lengths: Supplied in lengths up to 12m, reducing joints and improving programme efficiency.

Aesthetics and Finishes:
A variety of colours and paint finishes can be applied to the underside of the deck to create an attractive finish, while also contributing to fire safety compliance.
SR30+ is an ideal solution for roof decking where strength, speed, and coverage are key. The clean underside can remain exposed for an industrial aesthetic or be adapted to suit internal finishes. Polyester white-coated soffits can enhance brightness and reduce the need for additional finishes.
Transport Optimisation: Each artic can carry large coverage due to the wide 1000mm sheets, minimising deliveries and on-site storage.
Fixing Efficiency: End laps of 150mm and simple main-fix fasteners mean installation is straightforward and reliable.

DESIGNED FOR

SMALL BUILDING PROJECTS

Features

Profile depth: 30mm | Pitch: 200mm | Crown: 121mm

Available gauges: 0.7mm & 0.9mm steel (S350)

Maximum sheet length: 12 metres

Typical span range: 1.0m–2.3m

Galvanised or polyester coated

Benefits

Fire Performance

SR30+ meets Class A1 Reaction to Fire, Class 1 (BS476 Part 7) and Class O in line with current Building Regulations, offering peace of mind on safety and compliance.

Corrosion Protection Options

Available in hot-dip galvanised finish (Z275) or polyester-coated systems, SR30+ provides strong durability in demanding environments.

Applications

Agricultural Buildings

Lightweight, fast-fixing roof for grain stores, livestock shelters and farm outbuildings. The shallow profile is economical and the 1000mm cover width reduces fixing points.

Light Industrial

Ideal for workshops, factories and storage sheds. The 2.3m maximum span handles typical purlin spacings with minimal deflection and excellent cost-to-coverage ratio.

Canopies & Covered Areas

Perfect for external canopies, covered walkways and semi-open structures where weather protection matters more than high strength requirements.

Refurbishment & Over-Cladding

Retrofit existing structures with a lightweight profile that doesn’t add excessive dead load. Easy to cut on site and compatible with most existing purlin spacings.

TECHNICAL SPECIFICATION

Technical

Material & Coating Options

Steel grade: S350 (minimum yield 350 N/mm²)

Gauges available: 0.7mm | 0.9mm only (no 1.2mm)

Galvanised: Z275 (275g/m² zinc dual-sided coating, 15–25 year durability)

Polyester coated: White 150g/m² Z150 base (25+ year durability, enhanced aesthetics)

Fire performance: Class 1 | Class 0 (subject to insulation and final assembly)

Span & Deflection

Typical span range: 1.0m–2.3m (based on 0.9mm gauge, deflection Span/200)

Deflection limit (default): Span/200 for most applications | Span/90 for more rigid structures

Load factor: 1.5 safety factor applied

Bearing length: Minimum 60mm on purlin

Typical purlin spacing: 1.0–2.0m centres (design-dependent)

For more information, please download our datasheet or click here.

ENQUIRY HERE

★ ★ ★ ★ ★

I have been using RMD profiles for a number of years and I can honestly say they are an amazing company to use . From the moment you contact them they make your project they're priority , they are very friendly, professional and cannot do enough for they're customers . During all my years of estimating I have never even gone to another decking company as I know from experience RMD profiles offer a 5 star service and I will be using them for many more years to come .

Nicolas Curtis

★ ★ ★ ★ ★

We initially obtained quotes for five similar competitive products. RMD was the best quote, but more importantly their support and lead time made our decision a no-brainer. Once we decided to go with RMD, Matt was able to accommodate some very specific cuts and get it loaded the same day we called. The delivery arrived as promised the next morning, and the delivery guys were terrific. We were delighted with the support provided, and love the product. Our builders had originally proposed a beam and block solution for the ground floor over our basement excavation, and had never come across steel decking in a domestic property. They absolutely love it now - and intend to completely abandon beam and block in favour of this for all future projects. They found it quick and easy to work with, and we actually started pouring concrete the same day it was delivered. It's been great working with a team who are so enthusiastic about both their product, and their customer support. Big thanks to Matt!

Adrian Timpson

★ ★ ★ ★ ★

Proactive team members provide an excellent service all round. I have been very happy with the input that provide. All queries are dealt with efficiently. Timescales are adhered to. I would highly recommend RMD Profiles Ltd.

Ian Drury

★ ★ ★ ★ ★

Excellent company from start to finish, kept to timescales and were always available when help needed. Great price too! Would definitely use again and would recommend.

Jeff Pillinger

★ ★ ★ ★ ★

Matt and his team are amazing, knowledgeable, professional and supportive. We have been working on numerous projects since 2021 and would recommend for profile decking supply and fit. Their service is commendable. Thank you Matt and team RMD, keep up the good work!

Rakesh Boyjoonauth

★ ★ ★ ★ ★

Matthew, Sean & Craig was extremely helpful from tendering, advice design and pre start site meetings. We had to delay the start date by a week and this was not an issue with RMD they accommodated the move and done everything they could to accelerate their install to help us make some time up. The Install team worked extremely hard and done a great job. Would highly recommend RMD Profiles and look forward to working with them on Future projects.

Oliver Jarvis