Description

Can the Opening Percentage of an Aluminum Screen Panel Be Customized?

Yes. The opening percentage of an aluminum screen panel can usually be customized according to the design, privacy requirements, sunlight control, ventilation needs, and appearance of the project.

For an architect or contractor, the question is not simply how much of the panel should be open. The more useful question is: how much should people be able to see through it?

That is where the opening percentage becomes important.

What Does Opening Percentage Mean?

The opening percentage, also called the open area, refers to the proportion of the panel surface that is left open after perforation, cutting, or other pattern processing.

For example:

• 20% open area means approximately 20% of the panel is open
• 40% open area provides more visual permeability
• 60% open area allows substantially more light and airflow through the panel

The actual result depends not only on the percentage but also on the shape, size, and arrangement of the openings.

Two panels can have a similar open area but look completely different when viewed from a distance.

Can the Opening Percentage Be Adjusted for Privacy?

This is one of the most common reasons to customize the open area.

If the panel is being used as a privacy screen, balcony screen, parking facade, outdoor enclosure, or building facade, a lower opening percentage can help reduce direct visibility.

A tighter pattern can make it difficult to see through the panel from certain angles while still creating shadows and visual depth.

On the other hand, a more open pattern may be better when the priority is:

• Better airflow
• More natural daylight
• A more transparent appearance
• Greater visual connection between inside and outside

The right percentage therefore depends on what is behind the screen and how people will view it.

There Is No Single “Best” Opening Percentage

A common mistake is to look for one standard opening percentage that works for every project.

There isn’t one.

A screen installed in front of an air-conditioning area may need more ventilation. A balcony screen may place greater importance on privacy. A parking structure may require a balance between airflow and visual screening.

For a decorative facade, the opening percentage may even be selected mainly to achieve a particular shadow effect or pattern.

This is why we normally recommend deciding the function first and the percentage second.

What Else Affects the Result?

Opening percentage is only one part of the design.

The following factors also change how an aluminum screen looks and performs:

1. Hole or Cutout Size

Small openings tend to create a denser visual appearance.

Larger openings can make the panel look more open, even when the overall open area is similar.

2. Pattern Arrangement

Round holes, slots, geometric patterns, irregular shapes, and custom decorative patterns can produce very different visual effects.

The spacing between openings also matters.

3. Viewing Distance

A panel may appear almost solid when viewed from several meters away but become much more transparent when someone stands close to it.

For privacy applications, this is particularly important.

4. Lighting Conditions

Daylight from behind the panel can make the openings appear more noticeable. At night, interior lighting can produce a completely different appearance.

For facade projects, it is worth considering both daytime and nighttime conditions before finalizing the pattern.

Can the Pattern Be Designed From Drawings?

Yes.

For projects with a specific facade pattern or architectural concept, the screen can be developed from drawings rather than choosing a standard pattern from a catalog.

We can work with details such as:

• Overall panel dimensions
• Opening percentage
• Hole or cutout shape
• Pattern spacing
• Material thickness
• Bending requirements
• Fixing requirements
• Powder coating or PVDF finish
• RAL color

This is particularly useful when the aluminum screen forms part of the building facade and the pattern needs to match the architect’s design.

How Do You Choose the Right Opening Percentage?

Instead of choosing a percentage based only on appearance, consider these four questions:

How much privacy is required?

If blocking direct views is important, a denser pattern may be preferable.

How much airflow is needed?

For ventilation screens and areas where air circulation is important, a more open design may be suitable.

How much sunlight should pass through?

A denser screen can provide stronger solar shading, while a more open design allows more daylight.

What should the facade look like from a distance?

A pattern that looks attractive in a close-up sample may appear completely different when installed across a large facade.

For this reason, a physical sample is often more useful than judging the percentage from a drawing alone.

Can We Adjust the Opening Percentage During the Design Stage?

Yes, and this is often the better approach.

For a new project, we can discuss the required privacy, airflow, daylight, pattern, material thickness, and installation method first. The opening percentage can then be adjusted around those requirements.

A sample can also be produced before mass production so the customer can check the actual visual effect.

At Foshan Qi Aluminum Decorative Materials Co., Ltd., we manufacture aluminum screen panels for facade, privacy, shading, balcony, parking, and decorative applications. Custom patterns and opening percentages can be developed according to project drawings and requirements.

If you already have a preferred pattern or target opening percentage, you can send us the drawing. We can check the design and suggest a suitable panel specification before production.

About us: