Toggle Nav
My Cart
Menu
Account
Search
Advanced Search

Sta Gemini Duo - stylish steel external door with side panel

SKU
Gemini Duo
Rating:
80 % of 100
1  Review Add Your Review
AVAILABLE
$3,620.00

The price includes TAX & shipping

Click here to select the configuration

Doors are manufactured after the order has been placed through the website.
Production time for our doors:
door named STA (stainless steel) - production takes 4 weeks
door named FARGO (stainless steel) - production takes 7 weeks
door named LIM (aluminum) - production takes 6 weeks

Size:

W 47.5" x H 82" total size with frame (W 31.5" door slab + 11.8" side panel)
W 51.5" x H 82" total size with frame (W 31.5" door slab + 15.8" side panel)
W 55.4" x H 82" total size with frame (W 35.4" door slab + 15.8" side panel)
W 59.3" x H 82" total size with frame (W 35.4" door slab + 19.7" side panel)

available custom height from 78.7" to 82"
available custom width from 47.5" to 59.3"

Available door colors:
anthracite, white, black, silver gray, red, blue, golden oak, walnut, wenge, bleached oak, concrete, turners oak, corten, mahogany

Construction:
The door is made of stainless steel. Inside it is filled with PUR polyurethane foam and wood. The thickness of the door slab is 2.2 inch. Dual sealing system - one seal is in the dap of the frame and the other is located in the supporting part of the door slab. They reduce vibration and protect your house from losing the heat. They don't change their volume under the influence of atmospheric conditions. The door frame has anti-burglar reinforcements in hinge parts and locking points.

The door set includes:
- Door and the door frame with two gaskets;
- Two independent locks (multi-point locking mechanism) providing anti-burglary security solutions;
- Two sets of inserts with the keys;
- Normal door handle (T-bar long handle as an additional option);
- Viewfinder (in the case of solid doors);
- 3x adjustable hinges that provide anti-burglary protection;
- Aluminum threshold with the gasket;
- 3x anti-theft bolts.

Thermal and soundproof specification:
- for a full door leaf R-Value 4.8
- for glazed door leaf R-Value 3.8
- acoustic insulation 31 dB (applies to doors without glazing)
- glass doors are made of triple glazing packages.

The door is already mounted onto the frame (prehung door), which saves you all the work. The door is completely ready for installation.

Full door information

The picture showing how to take the measurement. Click here
The installation space between the frame and the wall can be between 0.2" to 0.8" on each side.
Frequently Asked Questions: click here to check

The panel in this door is openable

-
+
$3,620.00

The price includes TAX & shipping

Wish List
Email
We found other products you might like!

Profile construction


Construction:

  • frame depth: 50 mm / 1.97"
  • leaf/slab depth 55 mm / 2.16"

The door set includes:

  • - Door and the door frame with two gaskets;
  • - ROTO locking system (strip lock) with an independent upper lock and three reinforced anti-theft bolts;
  • - Two sets of inserts with the keys;
  • - Normal door handle (T-bar long handle as an additional option);
  • - Viewfinder (in the case of solid doors);
  • - 3x adjustable hinges that provide anti-burglary protection;
  • - Aluminium threshold with the gasket;
  • - 3x anti-theft bolts.

Thermal and soundproof specification:

  • - for a full door leaf, at Ud = 1.2 W/K*m2 / R-Value = 6.7
  • - for glazed door leaf , at Ud = 1.5 W/K*m2 / R-Value = 4.5
  • - acoustic insulation 31 dB (applies to doors without glazing)
  • - glass doors are made of triple glazing packages.

Dimensions and real pictures of the door threshold from the STA collection


Glazing

The glass in our doors are triple-pane windows. All panes are connected with spacer frames. Two of them are covered with Low-E coatings that provide natural light while helping to limit heat gain and thermal energy loss. It is also possible to choose P4 anti-burglary glass or safety glass VSG 33.1

standard glazing package 4th/16Ar/4/16Ar/4th

safety glass 33.1//4//4

P4 anti-burglary

Types of glazing

There is a wide range of glass options. In our offer one will find energy-saving, sound-absorbing, safety, anti-burglary and sunscreen windows. The most popular ones are milk glass, decorative or mirror glass as well as bronze reflex glass.

Light permeability of the glass:

- Milk – frosted glass 89%
- Mirror glass – 68 %
- Bronze Reflex glass – 42 %

One way mirror glass has a thin layer of reflective coating which allows the glass to reflect half the light that hits it. Simultaneously, half the light also goes straight through. This makes the glass both reflective and transparent. During the day, the outside is bright which means that people who are outside are not able to see what is inside the house. However, during the night when the light is on, the one-way mirror turns into a window. People are able to see through the glass both ways.

To solve the issue, one can apply the one-way vision foil. The foil consists of hundreds of small holes enabling light penetration, which gives the effect of semi-transmission. It is usually used for advertisement on buses or windows.

Colours

 

Golden Oak

Mahogany

Winchester

Walnut

Wenge

Blanched oak

turners oak

Black

concrete

smooth anthracite RAL 7015

light anthracite (silver grey) RAL 7040

dark anthracite RAL 7016

corten - architectural rust

white

abbys blue

calm salvia

july blue

twilight green

marble red

Door handle inox - silver

Door handle black

T-bar - long vertical handle or normal handle:

Stainless steel door handles are designed for one or two-sided use for external doors.
The innovative mounting system enables quick and easy installation of the door handle. Our offer includes many handrails:

 


T-bar Straight, circular shape 1200 mm / 47.2"

T-bar Straight, rectangular shape 1600 mm / 59.0"

YES, round arch silver 1200 mm / 47.2"

Lever Handle vs T-bar Pull Handle

1. If you have a Lever handle/normal handle from the outside, you can release the latch without using a key from outside. You simply push the Lever handle down and the latch will retract allowing you to open the door.

2. If you have a T-bar long handle from the outside, it has no way to release the latch because it is only used for pushing and pulling the door. So in this situation from the outside you always need keys to re.lease the latch. Then insert the keys into the key hole and turn to release the latch and open the door.

3. We offer a third additional option if the customer decides to purchase a T-bar. When selecting the T-bar on our website, you can additionally order a Knob Handle that will be installed together with the T-bar from the outside. This door Knob Handle will allow you to release the latch from the outside. So you can order Tbar + Knob which is quite small and looks quite nice.

Multi-point lock system

  • steel hooks and pins
  • Three-dimensional locking with integrated hooks and metal pins for optimal security.
  • Pressure adjustment.

How measure the hole in the wall for door installation

The picture shows the dimensions of the door with the frame and how to measure the opening for door installation. Please take the measure from the floor "tile or wooden panel" inside the house to the top brick level.

The space for the door installation should be between minimum 5mm to 20mm larger than the overall size of the door with the frame. This space is necessary as it should be filled with foam during the installation. This will also ensure insulation between the wall and the door frame.

Write Your Own Review
You're reviewing:Sta Gemini Duo - stylish steel external door with side panel
Your Rating

The Sta Gemini Duo is a stylish steel external door complete with a matching side panel, designed to enhance the entrance of any modern home or commercial building with a perfect blend of contemporary aesthetics, durability, and functionality. This premium door system is crafted to provide a welcoming yet secure entryway that complements a wide range of architectural styles while offering exceptional performance and lasting value.

Built from high-quality steel, the Sta Gemini Duo door delivers outstanding strength and resilience, making it an ideal choice for exterior applications where security and weather resistance are paramount. The robust steel construction ensures protection against forced entry, extreme weather conditions, and daily wear and tear, while its sleek design maintains a clean, modern look that elevates the overall curb appeal of your property.

Finished with a smooth, durable coating available in a variety of colour options, the door is engineered to resist corrosion, fading, and surface damage. This protective finish guarantees that the door will retain its attractive appearance over time with minimal maintenance required. Whether you prefer a bold, eye-catching hue or a more subtle tone, the Sta Gemini Duo can be tailored to fit your design preferences and complement your building’s exterior environment.

A key feature of the Sta Gemini Duo is the integrated side panel, which significantly enhances both the aesthetic appeal and functionality of the entrance. The side panel expands the visual width of the doorway, creating a more spacious and inviting entry experience. It can be fitted with different glazing options such as clear, frosted, or textured glass that allow natural light to permeate interior spaces, brightening foyers or hallways while maintaining privacy. Moreover, the side panel can be configured as fixed or operable, providing additional ventilation options to improve indoor air quality and comfort.

Security is a fundamental priority for the Sta Gemini Duo. Equipped with advanced locking mechanisms, including multi-point locks and reinforced steel hinges, the door system offers robust protection against unauthorized access. This ensures peace of mind for homeowners and business owners alike. In addition to security, the steel door delivers excellent thermal insulation and soundproofing benefits, helping to maintain a comfortable indoor climate and reduce external noise intrusion.

Customization is another hallmark of the Sta Gemini Duo, allowing you to personalize your entrance to perfectly suit your style and functional needs. From the choice of finishes and colours to hardware styles and glass types, every element can be tailored to match your vision. Whether you want a minimalist, monochromatic look or a contrasting design statement, the Gemini Duo offers the flexibility to create a unique and memorable entrance.

In summary, the Sta Gemini Duo stylish steel external door with side panel is an exceptional entrance solution that combines modern design, superior security, and practical versatility. Its durable steel construction and customizable finishes ensure long-lasting beauty and protection, while the side panel enhances natural light and accessibility. Perfect for those seeking to make a strong architectural impression, the Sta Gemini Duo transforms any exterior entryway into a striking focal point with confidence and style.