Please enter your EXTERNAL up-stand sizes here (see images and downloads for more info).Â
We work to the external up-stand size as the thickness of up-stands can vary and therefore the internal size can vary depending on this. Using the external up-stand size maintains a reference point.
Typically the up-stand is 75mm - 100mm thick.
So for example if you order a Lantern 1200mm x 1800mm your EXTERNAL up-stand size needs to measure 1200mm x 1800mm. The aluminium ring beam then overhangs this by 12mm all around and the glass even more (see diagram).