Roof Lantern Size Guide - Which Size Do You Need?

Posted by Lawrie Fraser on 9th February 2024

YARD Direct - Roof Lantern Sizes - Everything you should know.

Selecting a roof lantern can significantly illuminate your living space and elevate your property's aesthetics, especially with top brands like Atlas Roof Lanterns and Korniche. These brands offer sleek designs with minimal bars and ample glazing, ensuring a captivating focal point for your home, both day and night.

But how do you determine the appropriate size for your roof lantern?

To assist you in making an informed decision, we've compiled comprehensive sizing guides for both Atlas and Korniche roof lanterns, along with measurements for each.

Atlas Roof Lantern Sizes & Prices

Atlas Roof Lanterns Size Chart:

Atlas roof lanterns are available in traditional and contemporary styles, blending seamlessly with any interior. These double-glazed lanterns boast impressive U-values ranging from 1.60 to 1.43. You can opt for clear glazing for a classic look or choose modern blue-tint glazing to reduce solar glare and create a more comfortable space underneath.

Once you've selected the size and glazing, you can further customize your lantern with five color combinations, including all black, black and white, grey and white, all grey, and all white.

Contemporary Roof Lanterns: 

100cm(W) x 150cm(H)

100cm(W) x 200cm(H)

100cm(W) x 250cm(H)

100cm(W) x 300cm(H)

150cm(W) x 175cm(H)

150cm(W) x 200cm(H)

150cm(W) x 250cm(H)

150cm(W) x 275cm(H)

150cm(W) x 300cm(H) 

250cm(W) x 120cm(H) 

Shop Contemporary Roof Lanterns.

Regular Roof Lanterns: 

100cm(W) x 200cm(H) 

150cm(W) x 250cm(H) 

200cm(W) x 300cm(H) 

200cm(W) x 400cm(H) 

Shop Regular Roof Lanterns.

Korniche Roof Lantern Sizes & Prices

Korniche Roof Lanterns Size Chart:

Korniche offers roof lanterns in four standard sizes, each available with two glazing options boasting a U-value of 1.2. You also have the flexibility to choose from five color combinations to match your aesthetic preferences.

Additionally, YARD Direct provides a price match promise*, ensuring you get the best deal on Korniche roof lanterns.

85 x 85cm

90 x 120cm

100 x 100cm

100 x 150cm

100 x 200cm

100 x 250cm

100 x 300cm

100 x 350cm

100 x 400cm

150 x 150cm

150 x 200cm

150 x 250cm

150 x 300cm

150 x 350cm

150 x 400cm

200 x 200cm

200 x 250cm

200 x 300cm

200 x 350cm 

200 x 400cm

250 x 250cm

How much does a roof lantern cost?

Roof lantern prices vary depending on size, material, and glazing type. At YARD Direct, our range of roof lanterns starts from £800 and goes up to just over £2,700.

Installation costs for roof lanterns may vary, however. You can check out our roster of approved installers to make sure the installation is to standard and of the best price. See YARD Approved Installers.

Do you need planning permission for a roof lantern?

In most cases, acquiring planning permission for a roof lantern installation is unnecessary, unless your property falls within a conservation area. However, it's crucial to adhere to permitted development rules, which include specific regulations:

  • The roof lantern must not extend more than 150mm above the existing roof's sloping plane.
  • It should not exceed the highest point of the roof.
  • If the roof lantern is on a side elevation roof slope, it must have obscure glazing.
  • Any roof openings must be at least 1.7m above the floor level.

These guidelines ensure compliance with local regulations and contribute to the seamless integration of the roof lantern into your property's architecture.

For further inquiries or clarification regarding planning permissions, feel free to reach out to our customer helpline at 01786 357252 or email us at We're here to assist you through the process.How to install a roof lantern:

Both Atlas and Korniche roof lanterns come with comprehensive installation guides and require basic tools such as a cordless screwdriver, soft mallet, wire cutters, and sealant. The installation process involves assembling the components, applying sealant, and securing the lantern in place.

Final thoughts:

Adding a roof lantern is an excellent way to enhance natural light and architectural appeal in your home. Choose the right style and size to complement your property, and enjoy the benefits of a well-lit living space. For more guidance, refer to our Roof Lanterns Buyer's Guide or contact our customer helpline at 01786 357252 or email for assistance.