Folding Doors for Apartments

More and more apartments are adding balconies, or upgrading existing ones to larger versions. What could be more natural than replacing a window section and a patio door leading to the balcony with a folding door from Lacuna?

In apartments, you can create an exceptional quality of life by maximizing the opening to the balcony.

Let nature in and make the balcony a natural extension of your living space.

Why choose Lacuna?

Tests & Certifications

Lacuna doesn’t settle for standard testing. Our folding doors are tested at the Danish Technological Institute, in our own extreme tests, and by independent third parties abroad for moisture absorption, dimensional stability, and insulation. This ensures full documentation and helps make Lacuna folding doors the world’s most airtight.

Sustainability at the forefront

At Lacuna, care for the environment is an integral part of everything we do. Our raw materials are carefully selected, and our folding doors are developed with a focus on high insulation, reduced heat consumption, and a lower CO₂ footprint. With a Uw value of 1.0–1.2, they can help reduce energy consumption by up to 30%.

Easy installation, cost-effective fitting

Lacuna’s products combine energy efficiency, durability, and a refined finish with a revolutionary patented top-frame system. Here, the running track is integrated directly into the top frame, allowing for more precise installation, fewer materials, and an even better-looking result.

When quality needs to be felt

Read why customers choose Lacuna for their homes and building projects.

HAVE A LOOK AT OUR SHOWROOM

We know that visiting Denmark isn’t possible for everyone, so we’ve created a short video to give you a quick visual tour of our showroom and show Lacuna’s folding doors in action. It’s an easy way to experience the product and feel more confident in making the right decision.