• Delivery Within 7 Days
  • Custom Made To Order
  • Choice of 16 Colours
  • Available With a Range of Finishes
  • 48-Hour Express Delivery on Request

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Suitable For:

Side Extensions

Covered Walkways

Storage Covers

Open Shelters

Utility Areas

A lean-to metal roof is a smart choice for adding durable, low-maintenance protection to any small structure. Whether you’re covering a workshop, carport or storage area, a steel lean-to roof provides strength, weather resistance and long-lasting performance.

At Cardinal Steels, our steel lean-to roofing sheets are designed for easy installation and a sleek, modern finish. Cut to your exact specifications and delivered nationwide, our steel roofing sheets can help you build a lean-to roof that looks great and stands the test of time.

Box profile sheets

Box Profile Roofing Sheets

Box profile sheets are ideal for lean-to roofs, where a single-slope design needs strength and stability. The ribbed profile adds rigidity along the span, protecting your lean-to from rain, wind and UK weather. Available in CS32/1000 (32mm) and CS34/1000 (34mm), these lightweight yet strong sheets provide durable, low-maintenance protection for attached structures, garden lean-tos and storage shelters.

Corrugated roof sheets

Corrugated Roof Sheets

Corrugated roofing sheets, with a 13.5 profile, 19mm depth, and 76.2mm pitch are designed to give lean-to roofs strength and consistent coverage across the single slope. At 0.7mm thickness, they are lightweight, durable and easy to fit, making them ideal for attached lean-tos, garden shelters, or storage extensions, as well as cost-effective roof upgrades.

Bespoke profile steel roof sheets

Bespoke & Obsolete Profiles

Bespoke steel sheets are custom-made to fit your lean-to roof, ideal for unusual spans, single-slop designs or renovation projects. Manufactured to your chosen profile, length, and thickness, they provide durable, low-maintenance protection against UK weather. A tailored lean-to steel roof offers a long-lasting solution for attached structures, garden shelters or storage lean-tos.

flat steel sheet being fed out of production machine

Flat Metal Sheets

Flat steel sheets, available in widths of 1220mm or 12500mm and lengths from 3m, are a versatile solution for lean-to roofs. Their lightweight, 0.7mm thickness makes them easy to install along single-slop structures, providing durable, low-maintenance protection and a sleek, modern finish for attached garden shelters, storage lean-tos, or small extensions.

Anti-condensation roofing

Anti Condensation Sheets

Anti-condensation steel sheets feature a drip-stop membrane bonded to the underside, designed to absorb moisture and minimise condensation. Perfect for lean-to roofs, they help keep interiors dry and protect stored items, garden equipment or household extensions, while providing durable, low-maintenance roofing that stands up to UK weather.

Insulated Roof Sheets

Insulated roof panels feature a steel outer sheet with a built-in thermal core, designed to reduce condensation and help regulate temperature. For lean-to roofs, they provide extra comfort and protection, keeping attached structures warmer in winter, cooler in summer, and dry year-round. Lightweight yet strong, these panels offer durable, low maintenance roofing tailored to the unique single-slop design of lean-tos.

Our products can support domestic lean-tos, side shelters, covered walkways and storage areas
Sheet profiles can be chosen to suit the existing building, roof pitch and overall finish
Lightweight options are available for simple timber or steel-framed lean-to structures
Roofing can be specified around airflow, exposure, condensation risk and budget
Wall flashings and trims are available to help seal the junction between the lean-to and main building

Single Skin Sheets

Straightforward roofing option for open, well-ventilated lean-to structures

Single skin sheets are a practical choice for lean-tos because many are open-sided, naturally ventilated and mainly used for shelter or storage. In these cases, an insulated system is often unnecessary.

For side passages, covered utility areas, log stores and simple domestic shelters, single skin sheets provide durable weather protection at a sensible cost. They can also be paired with wall flashings for a cleaner join against the existing building.

Recommended By Cardinal Steels
Why We Recommend Them
- Well suited to open-sided lean-tos and simple shelters
- Cost-effective option for basic weather protection
- Lightweight enough for many timber and steel-framed structures
- Available in profiles that suit both domestic and agricultural buildings
- Easy to pair with wall flashings, fixings and finishing trims
Important Note
Single skin sheets work best where airflow is good and condensation is unlikely to be a major issue. For enclosed lean-tos, heated spaces or structures used to store moisture-sensitive items, non-drip or insulated systems may be more suitable.

Use Our Online Roofing Calculator

Build your quote online using our free metal roof calculator. Simply choose your roof type, desired measurements, finish, colours and accessories, and we’ll put together an instant quote for your order.

Get In Touch Today

Cardinal Steels has supplied precision steel roofing across the UK for over 30 years. Every sheet is cut to your specifications, reducing waste and making installation simple. With a wide range of profiles, lengths and finishes, our steel sheets are ideal for lean-to roofs, from attached garden shelters to storage extensions. Combined with fast UK-wide delivery and expert advice, Cardinal Steels makes it easy to get a durable, long-lasting metal lean-to roof tailored to your project. Contact us today to request a free, no-obligation quote!

 

Why Metal Roofing Suits Lean-To Structures

Steel roofing sheets make lean-to structures stronger, longer-lasting and easier to maintain, while perfectly following their single-slope design.

Designed for Single-Slope Simplicity

A steel lean-to roof is ideal for the distinctive single-slope design of lean-tos. Its panels fit neatly along the slope, providing full coverage and a clean finish without complicated cuts or joins.

Lightweight Strength

Many lean-to structures are built with minimal framing, so it’s important to choose a roof that adds protection without extra weight. A lean-to metal roof is both lightweight and strong, easily handling rain, wind and snow while keeping the structure safe and stable.

Quick Fit for Attached Structures

Many lean-tos are attached to garages, sheds, or houses. A steel lean-to roof can typically be installed against existing walls, making it a practical option for adding weatherproof coverage with minimal structural adjustment in many cases.

Long-Term Protection

A steel lean-to roof resists rot and corrosion, with optional anti-condensation and insulated sheets, making it ideal for structures that are partially open or exposed to the elements. This means less maintenance and more peace of mind over the years.

Sleek, Customisable Finish

A metal lean-to roof can be tailored to match existing buildings, creating a cohesive, attractive finish that complements your property.

Our Process

Make an Enquiry

Reach out via phone, email or our online form to discuss your project. Our team will provide expert advice on roofing profiles, coatings and finishes to help you make the right choice.

Design & Customise

Send your roofing sheet requirements via email or phone call or use our Online Roof Calculator to input your custom specifications including profile type, sheet lengths, thickness and colour. If you’re project requires custom profiles or obsolete sheets then fill out our on-site contact form.

Add Extras & Finalise Your Order

Enhance your order with additional components such as Z purlins, flashes, trims and fixings. Once all details are confirmed, we begin manufacturing your custom steel roofing sheets with precision and care.

Nationwide Delivery

Your order will be delivered via our own fleet guaranteeing complete transparency at every stage of your order. We’ll provide you with an estimated timeslot the day prior to delivery so you can better plan your project’s timeline.

Areas We Cover

Birmingham

Sheffield

Leeds

Manchester

Liverpool

Cannock

Coventry

Wolverhampton

Walsall

Stoke-on-Trent

York

& Beyond

Order & Delivery FAQs

How do I place an order?
There are several different ways you can place an order for your roofing sheets, wall cladding or accessories.

 

  1. Fill out the contact form at the top of the page or on our Contact Us page
  2. Speak to us directly on 01527 330000
  3. Build your quote online using our roofing calculator 
  4. Emailing us directly at [email protected]
Do you have a minimum order size?

We do not have a minimum order size here at Cardinal Steels. We stand firm that no job is too small, whether it’s a garage or an industrial estate, we provide the same level of dedication and service.

While some competitors may overlook smaller projects, we ensure that our service remains exceptional no matter the job size.

Can I collect my roofing sheets from your yard?

We’re more than happy for you to pick up your roofing sheet orders directly from our facility if you would prefer this over our nationwide delivery service. All we ask is that you let us know that this is the case.

We are conveniently located just 10 minutes from Junction 1 of the M42 and 15 minutes from Junction 4 of the M5, in the heart of Bromsgrove, Worcestershire.

Can I recieve my roofing sheet order sooner than 7 days?

Yes – we can often arrange a 48-hour express turnaround for your steel roof sheet delivery, subject to vehicle availability and scheduling. If your area isn’t already on our route, a small additional charge may apply depending on the order size and delivery method, which we’ll confirm with you at the time of enquiry.