Bi-Folds Door


We are pleased to announce our new aluminium sliding/folding “bi-fold” door into the Crown range. This stunning new addition to the Crown aluminium door family will be exceptionally popular with its unique Shootbolt & ‘D’ Handle and continuous hinges. The innovative hinge means that there are no bulky or unsightly hinges to disrupt the contemporary sightlines.

The door features hardware designed specifically for doors – as opposed to ‘window’ hardware utilised on some doors of this type. This allows the Crown Sliding/Folding Door to not only be securely locked but also used as a main entry or exit operable from both inside and outside, using our robust & secure Multi-Point Lock.

Reasons to Buy

  • -Continuous Hinges - Inobtrusive aesthetics, no adjustment required and prevents finger trapping.
  • -Rebated Leaf (Head, Cill & Locking Jamb) - Provides excellent weather performance combined with high security.
  • -Polyamide Head Guide Track for improved thermal performance and smooth/quiet operation.
  • -Part L 2013 Building Regulations compliant and capable of achieving a market leading 1.4 W/m²K U value
  • -Unique Combined Shootbolt & D Handle - Key lockable & Shootbolt and pull handle in one.
  • -Integral Cills Option for Quicker Manufacture & Installation - Fewer bars to coat, cut & machine.
  • -75mm Vent Profile - Gives increased strength and wear resistance.
  • -Compatible with other Sapa window and door products.

Technical Information

  • 1000mm Max Leaf Width - 580mm Min Leaf Width.
  • 3000mm Max Door Heighty.
  • 100Kg Max Leaf Weight.
  • 28mm Glazing with Chamfered Bead.
  • Available in 2,3,4,5,6 & 7 pane options - Able to open In & Out, Left & Right Hand.
  • Types 220, 330, 431, 440, 550, 651, 633, 660 & 770.
  • Multicavity Outer Frame - 1.5 W/m²k DGU (additional enhancements to 1.4 W/m² overall soon).

Features of Bi-Folds Door

  • Space-saving design: Bi-fold doors are known for their ability to maximize space utilization. They fold in on themselves, creating a compact stack when opened, which allows for an unobstructed opening and clear passage when the doors are folded back.
  • Flexible configurations: Bi-fold doors typically consist of multiple panels connected by hinges. This design allows for various configurations, from a simple two-panel setup to doors with multiple panels that can span wide openings.
  • Indoor-outdoor integration: Bi-fold doors are often used to create a seamless transition between indoor and outdoor living spaces.
  • Large glass panels: Bi-fold doors often feature large glass panels that offer unobstructed views of the outdoors.
  • Security features: Bi-fold doors typically come with robust locking mechanisms and security features to ensure the safety of your home or business.
  • Customizable finishes: Bi-fold doors are available in various materials, including aluminum, wood, uPVC (unplasticized polyvinyl chloride), and composite materials.
  • Weather resistance: Bi-fold doors are designed to withstand various weather conditions, including rain, wind, and extreme temperatures.
  • Noise reduction: High-quality bi-fold doors can provide a degree of sound insulation, helping to reduce noise from the outside environment when the doors are closed.

Specifications of Bi-Folds Door

  • Size and Configuration: You can choose how many panels you want in your bi-fold door, typically ranging from 2 to 8 or more. Each panel's width can vary, and you can specify the width of each panel based on your design and space requirements.
  • Materials: Bi-fold doors are available in various materials such as aluminum, wood, uPVC (unplasticized polyvinyl chloride), and composite materials. The material you choose can impact the door's aesthetics, durability, and maintenance requirements.
  • Glass: You can select different types of glazing, including single or double glazing, low-E (low-emissivity) glass for energy efficiency, and various glass tint options. The thickness of the glass can affect insulation and soundproofing properties.
  • Finish and Color: Bi-fold doors can be finished with a wide range of colors, textures, and finishes to match your interior or exterior design.
  • Hardware and Accessories: Bi-fold doors often come with multi-point locking systems for security. Quality hinges and rollers ensure smooth and durable operation.
  • Energy Efficiency: Some bi-fold doors are designed to offer high thermal insulation with features like thermal breaks and weather seals. Look for U-value ratings to assess the door's energy efficiency; lower values indicate better insulation.
  • Security Features: Multi-point locking systems and toughened glass can enhance security. Options for different cylinder types, including key-operated or thumbturn cylinders.

The Bi-Folds Door framing systems are powder coated to the highest standard, with a range of over 200 polyester powder paint colours available in a gloss, matt or satin finish, to match your individual taste or to suit corporate or brand requirements.