An open corner can be created with fixed window glazing, but using two sets of either bi-folding or sliding doors takes it to the next level because the doors move in opposite directions away from each other to leave the corner entirely open.

So how do open corners work? What kind of structural support do they need? And what are the options for using sliding doors or bi-folds?

There are various ways to create open corners and which one you choose can depend on your aesthetic preference, budget, and the structure of your home or extension. 

The most striking option is the floating open corner, also called a moving or frameless corner. This design has no visible supports and relies on a cantilevered or “floating” roof. A movable post is attached to the end panel of the glass doors, folding or sliding away when opened. This allows the entire corner to disappear, leaving a clean, unobstructed view and maximising natural light.

If a floating roof isn’t structurally possible, a fixed post can be used to support the roof. This post can be placed either inside or outside the room, still offering a generous open view while ensuring stability. Alternatively, a brick corner pillar can be built between the two sets of doors, though this reduces the fully open effect and visually separates the walls.

When closed, open corners are as secure, thermally efficient and watertight as standard bi-folding or sliding doors, with Solarlux offering multi-point locking for added safety.

Planning an open corner requires collaboration with architects, builders and glazing specialists to ensure the correct structural support and compliance with building regulations. Solarlux provides customisable options in aluminium or composite materials, with over 200 colour choices, offering bespoke designs suitable for any style of property.

Read more about open corner design.