Moving glass walls: the types, and what drives the cost

A moving glass wall creates a large indoor-outdoor living space without demolishing the house or reworking the landscape. Cost is one of the first questions, but it cannot be answered without knowing what kind of system suits the house.

What drives the cost

The price of a glass wall depends on more than the glass. Labor and the design of the opening account for much of it, and each project is different. A specific price comes only from looking at the specific opening.

The main types

• Bi-fold. Panels fold together like an accordion. Because they are heavy, they are usually bottom-loaded, with the weight carried on the bottom track rather than on structure overhead. The folded stack takes up some space and remains visible.
• Stacking. Panels slide and stack behind one another on three to six tracks, depending on the size of the opening. Fully open, the wall admits plenty of light and air.
• Pocket. Panels slide like a stacking system but disappear into a pocket in the wall, so the opening can be cleared entirely.

How to choose

• Budget. Consider how long you want the door to last, how often it will be used, and the weather it faces, which affects insulation and sealing.
• Size. Measure carefully. Openings are not always as regular as they appear, and they can vary from room to room, sometimes because the structure has settled. An expert can tell you what the opening allows.
• Material. Wood is strong and traditional. Glass gives a modern look and, specified well, insulates and reduces sound.
• Sound. A door’s STC rating measures how much sound it stops. Doors differ widely, so compare ratings.

Protecting the glass

Laminated safety and security glass, or window film, helps protect against break-ins and against heat, and reduces glare on screens. Tempered glass is about four times stronger than untreated glass, withstands rapid changes in temperature, and breaks into small pieces rather than large shards.

Common questions

How do you cover a glass door? Curtains, shades or drapes give privacy and help keep out drafts and noise while still letting in light when open.

Are doors with glass secure? Security depends on many factors: the strength of the locks, any alarm system, and the material of the frame. Metal frames withstand more force than wood.

A glass wall connects rooms to each other and to the outdoors, fills the house with natural light and makes it feel more spacious. Choosing the right type for the opening is the first step toward an accurate cost.