The Guinness Book of Records has always had a very close relationship with the construction sector. The best architects and engineers have competed to defy the laws of physics and make the tallest building in the world (the Jeddah Tower in Saudi Arabia is under construction to reach the vertical kilometer), the longest bridge in the world (Danyang-Kushan in China with 164.8 kilometers) or the largest glass roof (a shopping center in Macau whose roof is equivalent to 30 glass tennis courts).

Windows and enclosures have not been an exception; the sector has been innovating for decades and achieving more efficient results, with better thermal and acoustic insulation and adapted to all types of situations. Furthermore, for the most eccentric there are windows that have achieved their Guinness Record diploma. This spectacular window installed in a renovated bourgeois house in Antwerp (Belgium) holds the honor of being the largest window in the world. The data is overwhelming, measuring six meters high by three meters wide and weighing up to four tons.

The work was carried out by the Belgian studio Sculp IT, which was in charge of all the rehabilitation and renovation of the single-family home. The immense window was intended to solve a structural problem of the house: there was no exit to the backyard. The architects, Pieter Peerlings and Silvia Mertens, opted for this innovation to practically integrate the garden into the home and allow the new tenants to benefit from the natural light and views of the garden. Its dimensions are not the only important feature of this window, but it also has insulating glass and a pivoting system to open each of the leaves.