Use the two diagrams immediately below to help explain how to measure to ensure you order the correct size for your project.
Dome only - if the measurement from the outside edge to outside edge of your upstand is 600mm you will need a dome of at least 600 x 600mm.
Roof Dome with PVC kerb - Select a roof dome size that is the same size or bigger than the structural opening in your roof
|Dome Size (mm)||Daylight Size (mm)||Dome Size (mm)||Daylight Size (mm)|
|600 x 600||450 x 450||1200 x 900||1050 x 750|
|750 x 750||600 x 600||1200 x 1200||1050 x 1050|
|900 x 600||750 x 450||1350 x 1050||1200 x 1200|
|900 x 750||750 x 600||1350 x 1350||1200 x1200|
|900 x 900||750 x 750||1500 x 1050||1350 x 900|
|1050 x 600||900 x 450||1500 x 1500||1350 x 1350|
|1050 x 750||900 x 600||1800 x 900||1650 x 750|
|1050 x 1050||900 x 900||1800 x 1200||1650 x 1050|
|1200 x 600||1050 x 450||1800 x 1800||1650 x 1650|
Applies to the vast majority of our customers and all but one of our products (more information on this later).
The lead times and delivery service are clearly displayed against each product, just below the price.
Please note, for certain products and delivery zones we can offer AM deliveries and Saturday Deliveries, if available, you'll be able to select and pay for these options via the checkout.
Delivery Charges will be applied for the following reasons:
You're outside of UK Zones A&B (Certain parts of Scotland, Scottish Islands, Northern Ireland, Channel Islands and IOM)
To view our delivery zones please View our delivery zones
We're unable to offer the following product/s with Free delivery:
Stira Loft Hatch/ Ladder combined
You can return a standard product within 14 days of receipt. Please note Made to measure products cannot be returned.
Click here to download a return form.