12” Round Van Porthole Window – VWD PORT12 Universal Clamp Ring Window

Not every van window is chosen for airflow alone. Some are chosen to change how a space feels.

The VWD 12” round porthole window adds natural light and outside visibility while using very little wall space. Its compact, circular opening fits spaces that rectangular windows cannot, making it ideal for custom layouts, small sleeping areas, and accent lighting inside the van.

Universal Fitment

• Works on any van or custom build
• No vehicle stamping required
• Ideal for tight wall sections
• Suitable for DIY installations

Round windows are often installed where a full window would interfere with cabinets, beds, or structural ribs.

Compact Natural Light

A porthole window does not try to replace large windows. Instead, it provides focused light and visibility without exposing the interior.

• Adds daylight to dark areas
• Maintains privacy
• Improves interior feel
• Creates visual openness

Even a small amount of direct natural light significantly changes how enclosed spaces feel inside a van.

Classic Round Design

• Timeless appearance
• Works with modern and vintage builds
• Complements minimalist layouts
• Distinctive exterior accent

Round windows are commonly used as accent windows to break up flat panel walls.

Clamp Ring Installation

• Reversible interior mounting ring
• Fits varied wall thickness
• 3M foam seal included
• Serviceable installation

The clamp ring compresses the seal evenly around the opening for a watertight fit. 

Durable Construction

• Black powder-coated aluminum frame
• Tempered safety glass
• DOT/SAE compliant glass
• Weather-resistant finish

The frame resists corrosion while maintaining a clean exterior appearance. 

Privacy Solar Glass

• 17% UV filtration tint
• Reduces glare
• Maintains privacy
• Allows natural daylight

Tinted glass softens incoming light while protecting interior materials. 

Measurements

Outside Diameter: 12-7/8"

Cut Hole Diameter: 11-11/16"

Installation Type: Clamp Ring

Clamp Ring Measurements: 1/8" (3.2 mm) or 1-1/2" (38.1 mm)

Use the cut hole dimension when preparing the wall opening. 

Common Installation Locations

• Bed areas
• Rear cargo spaces
• Bathrooms
• Accent lighting locations

FAQ

Does it open?

No. This is a fixed window designed for light and visibility, not ventilation.

Why choose round instead of rectangular?

Round windows fit tighter spaces and add light without sacrificing privacy.

Is it difficult to install?

No. Clamp ring mounting allows installation using standard cutout methods.

Will it leak?

The included foam seal compresses evenly around the opening when installed correctly.