1250mm x 1250mm Square Gazebo Style Roof Lantern

Our 1250mm x 1250mm Square Gazebo Style Roof Lantern is a made-to-measure rooflight featuring equal-sized sides for a traditional, symmetrical lantern design. Ideal for flat roof extensions, conservatories, garden rooms and other suitable flat roof projects, it creates an impressive architectural feature while bringing additional natural daylight into the room below.

The 1250mm x 1250mm measurement is the internal frame size. Please allow for the additional width of the uPVC frames and cill when calculating the overall dimensions required for your installation.

Complete Square Roof Lantern System

The lantern is supplied as a complete roof system with the main components required to create the finished gazebo-style structure.

• Internal frame size: 1250mm x 1250mm
• Square gazebo-style design with equal-sized sides
• uPVC window frames
• Lantern roof structure
• Roof guttering
• Choice of polycarbonate or glass roof glazing
• Decorative finial
• Made-to-measure construction

1250mm x 1250mm Made-to-Measure Roof Lantern

This model has a nominal 1250mm x 1250mm internal frame dimension. The equal width and length create the balanced square shape associated with a traditional gazebo-style roof lantern.

Because the lantern is manufactured to order, it provides an attractive solution for customers looking for a distinctive square rooflight for a flat roof rather than a simple flat glass roof window.

1250mm Roof Lantern Dimensions

Important: All sizes shown refer to the internal frame dimensions, not the overall external size of the complete lantern.

The uPVC window profiles are approximately 70mm wide. This adds approximately 140mm to both the width and length when calculating the external frame dimensions.

The cill extends approximately 160mm on each side. This adds approximately 320mm to both the width and length when calculating the overall external cill dimensions.

Dimensions for This 1250mm x 1250mm Lantern

• Internal frame size: 1250mm x 1250mm
• Approx. external frame size: 1390mm x 1390mm
• Approx. external cill size: 1570mm x 1570mm

Please check the internal frame, external frame and cill dimensions carefully before ordering.

Glass or Polycarbonate Roof Options

Choose between a glass or polycarbonate roof to suit your particular project.

Polycarbonate provides a lightweight and practical roofing option, while glass creates the appearance of a more traditional glazed roof lantern. Select your preferred roof material when configuring the lantern.

Traditional Gazebo-Style Roof Design

The equal-sided design creates the distinctive square gazebo-style appearance. The vertical uPVC window frames combine with the pitched roof above to create additional height and an attractive focal point within the room.

A decorative finial completes the traditional lantern appearance.

Roof Design and Structural Configuration

The exact configuration of a gazebo-style roof can vary according to the dimensions of the lantern. Larger roof lanterns may require a different roof configuration to provide the necessary structural support while maintaining the overall gazebo-style appearance.

The final roof arrangement should therefore be appropriate for the size of lantern being manufactured.

Ideal for Flat Roof Extensions

A 1250mm square roof lantern can introduce natural daylight into areas that may otherwise rely heavily on conventional windows and artificial lighting.

Suitable applications can include:

• Flat roof extensions
• Kitchen extensions
• Dining areas
• Garden rooms
• Conservatories
• Orangeries
• Other suitable flat roof projects

Product Specification

• Product: Square gazebo-style roof lantern
• Internal size: 1250mm x 1250mm
• Approx. external frame size: 1390mm x 1390mm
• Approx. external cill size: 1570mm x 1570mm
• Shape: Square
• Construction: Made to measure
• Frame material: uPVC
• Window profile width: Approximately 70mm
• Cill: Approximately 160mm each side
• Roof options: Glass or polycarbonate
• Guttering: Included
• Decorative finial: Included

Made-to-Measure Square Roof Lantern

The 1250mm x 1250mm gazebo roof lantern is manufactured to order. If you require an alternative square size or a configuration that is not shown within the standard product options, please contact us before ordering.

Frequently Asked Questions

Is the 1250mm x 1250mm measurement the overall lantern size?

No. The 1250mm x 1250mm measurement is the internal frame size. The overall external frame and cill dimensions are larger.

What is the approximate external frame size?

For a 1250mm x 1250mm internal frame, the approximate external frame dimensions are 1390mm x 1390mm.

What is the approximate overall cill size?

The approximate external cill dimensions are 1570mm x 1570mm.

Can I choose a glass roof?

Yes. The lantern is available with a choice of glass or polycarbonate roof glazing.

Is guttering included?

Yes. Roof guttering is included as part of the complete lantern system.

Is the decorative finial included?

Yes. A decorative finial is included to complete the traditional gazebo-style appearance.

Can I order another square size?

Yes. These roof lanterns are made to measure, so alternative square dimensions can be manufactured subject to the required roof configuration.