# Aluminium Bi-fold Doors

> Source: https://arkaywindows.com/aluminium-bi-fold-doors/
> Author: Damon
> Published: 2026-08-18T11:57:37+01:00
> Modified: 2026-08-19T16:44:02+01:00

Discover the unique advantages of aluminium bi-fold doors. Perfect for gardens or expansive openings in commercial buildings.

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# Aluminium Bi-Fold Doors




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### High-Performance Aluminium Bi-Fold Doors for Trade, Residential and Development Projects


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bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid"][divider line_type="No Line" custom_height="50px" custom_height_phone="16px"][/vc_column][/vc_row][vc_row type="in_container" full_screen_row_position="middle" column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" top_padding="2%" bottom_padding="5%" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overflow="visible" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none" gradient_type="default" shape_type=""][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" 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tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" overflow="visible" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" column_padding_type="default" gradient_type="default"][split_line_heading animation_type="line-reveal-by-space" font_style="h3" line_reveal_by_space_text_effect="default" content_alignment="default" mobile_content_alignment="inherit" link_target="_self" text_content="Aluminium bi-fold doors are now one of the most specified glazing products in modern residential construction." text_direction="default"][/split_line_heading][divider line_type="No Line" custom_height="25px"][vc_column_text css="" text_direction="default"]Whether opening onto a garden, or creating expansive openings within commercial developments, bi-folding doors offer a unique combination of flexibility, aesthetics and performance.


At Arkay Windows, we manufacture and supply a carefully selected range of aluminium bi-fold door systems designed to meet the demands of installers, developers, architects and homeowners. With over 50 years of fabrication experience and partnerships with leading system houses, we help our customers specify the right solution for every project.


Our aluminium bi-fold door range includes:



### Iconik Bi-Fold Doors



### UniFold HI



### AluK BSF70 HI


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## Our Bi-fold Sliding Door Range


[/vc_column_text][divider line_type="No Line" custom_height="10px"][vc_column_text css="" text_direction="default"]**Not every bi-fold door is designed for the same application.**


Some projects prioritise ultra-slim sightlines and contemporary aesthetics, while others require a balance between performance, durability and everyday practicality. Understanding the differences between systems is essential when specifying aluminium bi-fold doors for trade projects.[/vc_column_text][/vc_column_inner][/vc_row_inner][carousel script="flickity" flickity_formatting="default" desktop_cols_flickity="3" desktop_small_cols_flickity="1" tablet_cols_flickity="1" phone_cols_flickity="3" flickity_controls="none" color="default" flickity_overflow="hidden" flickity_wrap_around="wrap" flickity_spacing="10px" flickity_column_vertical_alignment="default" column_padding="10px" flickity_element_spacing="default" flickity_adaptive_height="true" border_radius="none"][item simple_slider_bg_image_position="default" simple_slider_overlay_strength="0.3" simple_slider_bg_image_loading="default" id="1787152660747-6" title="Item" tab_id="1787152660747-6"][fancy_box box_style="image_above_text_underline" image_url="10741" image_aspect_ratio="4-5" content_color="#000000" border_radius="default" image_loading="default" enable_animation="true" animation="fade-in-from-right" image_size="large" delay="600" link_url="/aluminium-unifold-bi-fold-doors/"]



#### UniFOLD HI Aluminium Bi-Fold Doors




A premium aluminium bi-fold designed for projects demanding **slim sightlines, large panels and strong thermal performance**. With 107mm sightlines, panels up to 1200mm x 3000mm and U-values as low as 1.2 W/m²K, UniFold HI is particularly suited to high-specification residential developments, extensions and renovations where aesthetics and performance are key considerations.[/fancy_box][nectar_btn size="large" button_style="regular" button_color_2="Accent-Color" color_override="#f9d849" solid_text_color_override="#000000" icon_family="none" text="View UniFOLD HI" margin_top="20px" url="/aluminium-unifold-bi-fold-doors/"][/item][item simple_slider_bg_image_position="default" simple_slider_overlay_strength="0.3" simple_slider_bg_image_loading="default" id="1787152660771-1" title="Item" tab_id="1787152660771-10"][fancy_box box_style="image_above_text_underline" image_url="9980" image_aspect_ratio="4-5" content_color="#000000" border_radius="default" image_loading="default" enable_animation="true" animation="fade-in-from-right" image_size="large" delay="600" link_url="/aluk-bsf70-aluminium-bi-fold-doors/"]



#### AluK BSF70 Aluminium Bi-Fold Door




A proven, highly versatile aluminium bi-fold suitable for **residential and commercial projects**. BSF70 HI offers extensive configurations, panels up to 1200mm x 3000mm and PAS 24 security. Its strong weather performance and integration with other AluK systems make it a dependable choice for installers requiring flexibility across varied project specifications.[/fancy_box][nectar_btn size="large" button_style="regular" button_color_2="Accent-Color" solid_text_color_override="#000000" icon_family="none" text="View AluK BSF70 HI" url="aluk-bsf70-aluminium-bi-fold-doors/" margin_top="42"][/item][item simple_slider_bg_image_position="default" simple_slider_overlay_strength="0.3" simple_slider_bg_image_loading="default" id="1787152660788-9" title="Item" tab_id="1787152660788-3"][fancy_box box_style="image_above_text_underline" image_url="10265" image_aspect_ratio="4-5" content_color="#000000" border_radius="default" image_loading="default" enable_animation="true" animation="fade-in-from-right" image_size="large" delay="600" link_url="/iconik-bifold-doors/"]



#### ICONIK Bi-Fold Door




A practical aluminium bi-fold designed for **everyday residential and trade projects**. Iconik provides installers with a straightforward, commercially competitive solution for extensions, renovations and replacement projects. It is particularly suited to trade customers looking for a reliable aluminium bifold that is easy to specify and sell without moving into higher-specification systems.[/fancy_box][nectar_btn size="large" button_style="regular" button_color_2="Accent-Color" solid_text_color_override="#000000" icon_family="none" text="View ICONIK" margin_top="20" url="/iconik-bifold-doors/"][/item][/carousel][/vc_column][/vc_row][vc_row type="full_width_content" full_screen_row_position="middle" column_margin="none" column_direction="default" column_direction_tablet="default" column_direction_phone="default" bg_image="9924" bg_position="center center" background_image_loading="default" bg_repeat="no-repeat" scene_position="center" constrain_group_3="yes" top_padding_phone="20%" constrain_group_5="yes" bottom_padding_phone="20%" text_color="custom" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overflow="visible" id="mobile" color_overlay="rgba(0,0,0,0.83)" overlay_strength="0.5" gradient_direction="radial" shape_divider_color="#f8d849" shape_divider_position="bottom" shape_divider_height="2px" bg_image_animation="clip-path" clip_path_animation_type="scroll" clip_path_animation_applies="default" clip_path_start_top_desktop="9%" clip_path_start_bottom_desktop="3%" clip_path_start_left_desktop="2%" clip_path_start_right_desktop="2%" clip_path_end_top_desktop="0%" clip_path_end_bottom_desktop="0%" clip_path_end_left_desktop="0%" clip_path_end_right_desktop="0%" clip_path_start_roundness="0" clip_path_end_roundness="0" animation_trigger_offset="0.00,15.00" animation_trigger_origin="top" shape_type="straight_section" gradient_type="default"][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="0px" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="center" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" column_position="default" gradient_direction="radial" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" animation_type="default" bg_image_animation="zoom-out-reveal" parallax_bg="true" parallax_bg_speed="fast" border_type="simple" column_border_width="none" column_border_style="solid" column_padding_type="default" gradient_type="default"][vc_row_inner column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" top_padding="5%" bottom_padding="8%" left_padding_desktop="10%" right_padding_desktop="10%" text_align="left" row_position="default" row_position_tablet="inherit" row_position_phone="inherit" zindex="20" overflow="visible" pointer_events="all"][vc_column_inner column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="no-extra-padding" column_padding_position="right" column_element_direction_desktop="default" column_element_spacing="0px" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" font_color="#ffffff" column_shadow="none" column_border_radius="none" column_link_target="_self" overflow="visible" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" column_padding_type="default" gradient_type="default"][nectar_responsive_text inherited_font_style="default" text_direction="default"]



# Aluminium Sliding Doors


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## Trade Aluminium Sliding Doors Built for Modern Projects


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Unlike traditional French or sliding doors, a bi-fold system allows multiple panels to fold neatly to one or both sides of an opening, creating a seamless transition between indoor and outdoor spaces.



### Large Opening Sizes


Modern aluminium systems can accommodate impressive panel sizes and wide openings, making them ideal for:



- Rear extensions

- Kitchen-diner renovations

- Contemporary new builds

- Luxury residential developments

- Garden room projects




### Slim Sightlines


Aluminium’s inherent strength allows for slimmer frame profiles than many alternative materials, helping maximise glass area and natural light.



### Thermal Performance


Today’s thermally broken aluminium systems deliver impressive U-values and help projects meet current Building Regulations without compromising aesthetics.



### Security


Our bi-fold doors are available with advanced multi-point locking systems and PAS 24 compliant options, helping deliver peace of mind alongside visual appeal.



### Long-Term Durability


Aluminium offers exceptional resistance to twisting, warping and weathering, making it particularly well suited to exposed locations and high-use environments.[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][vc_column column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="no-extra-padding" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="0px" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" sticky_content="true" sticky_content_functionality="css" sticky_content_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" column_position="default" advanced_gradient_angle="0" gradient_direction="left_to_right" overlay_strength="0.3" width="1/3" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" gradient_type="default" column_padding_type="default"][image_with_animation image_url="9981" image_size="full" animation_type="entrance" animation="None" animation_movement_type="transform_y" hover_animation="none" alignment="" border_radius="none" box_shadow="none" image_loading="default" max_width="custom"][/vc_column][/vc_row][vc_row type="full_width_background" full_screen_row_position="middle" column_margin="none" equal_height="yes" content_placement="middle" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" top_padding="0" bottom_padding="6%" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overflow="visible" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none" shape_type="" gradient_type="default"][vc_column 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box_shadow="none" image_loading="default" max_width="110%" max_width_mobile="default"][/vc_column_inner][/vc_row_inner][/vc_column][vc_column column_padding="padding-12-percent" column_padding_tablet="inherit" column_padding_phone="padding-3-percent" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color="#f2f2f2" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" column_position="default" gradient_direction="left_to_right" overlay_strength="0.3" width="7/12" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" column_padding_type="default" gradient_type="default"][vc_row_inner column_margin="default" column_direction="default" column_direction_tablet="default" column_direction_phone="default" bottom_padding="4%" text_align="left" row_position="default" row_position_tablet="inherit" row_position_phone="inherit" overflow="visible" pointer_events="all" css=".vc_custom_1758802052817{margin-bottom: 10px !important;}"][vc_column_inner column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" overflow="visible" gradient_direction="left_to_right" overlay_strength="0.3" width="1/12" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" offset="vc_col-lg-offset-0 vc_col-md-offset-0 vc_hidden-sm vc_hidden-xs"][/vc_column_inner][vc_column_inner column_padding="no-extra-padding" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" overflow="visible" gradient_direction="left_to_right" overlay_strength="0.3" width="11/12" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" offset="vc_col-xs-12"][split_line_heading animation_type="line-reveal-by-space" font_style="h2" text_color="#000000" line_reveal_by_space_text_effect="default" content_alignment="default" mobile_content_alignment="inherit" link_target="_self" text_content="Choosing the Right Bi-Fold Door System" text_direction="default"][/split_line_heading][divider line_type="No Line" custom_height="30px"][vc_column_text css="" text_direction="default"]Not all bi-fold doors are designed for the same application.


Factors such as opening size, budget, thermal requirements, sightlines and project specification all influence which system will deliver the best result.


That is why Arkay offers multiple aluminium bi-fold solutions rather than a one-size-fits-all approach.[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row type="full_width_background" full_screen_row_position="middle" column_margin="default" equal_height="yes" content_placement="top" column_direction="default" column_direction_tablet="column_reverse" column_direction_phone="column_reverse" scene_position="center" top_padding="2%" bottom_padding="5%" left_padding_tablet="8%" constrain_group_4="yes" right_padding_tablet="8%" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overflow="visible" advanced_gradient_angle="0" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none" gradient_type="default" shape_type=""][vc_column column_padding="padding-15-percent" column_padding_tablet="no-extra-padding" column_padding_phone="no-extra-padding" column_padding_position="left" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" column_position="default" advanced_gradient_angle="0" gradient_direction="left_to_right" overlay_strength="0.3" width="1/2" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" gradient_type="default" column_padding_type="default"][vc_row_inner column_margin="none" column_direction="default" column_direction_tablet="default" column_direction_phone="default" text_align="left" row_position="default" row_position_tablet="inherit" row_position_phone="inherit" overflow="visible" pointer_events="all"][vc_column_inner column_padding="padding-5-percent" column_padding_tablet="inherit" column_padding_phone="inherit" column_padding_position="right" column_element_direction_desktop="default" column_element_spacing="0px" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" overflow="visible" advanced_gradient_angle="0" gradient_direction="left_to_right" overlay_strength="0.3" width="1/1" tablet_width_inherit="default" animation_type="default" enable_animation="true" animation="fade-in-from-bottom" animation_easing="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" gradient_type="default" column_padding_type="default"][split_line_heading animation_type="line-reveal-by-space" font_style="h3" line_reveal_by_space_text_effect="none" content_alignment="default" mobile_content_alignment="inherit" link_target="_self" text_content="Why Trade Customers Choose Arkay" text_direction="default"][/split_line_heading][divider line_type="No Line" custom_height="25px"][vc_column_text css="" text_direction="default"]For installers, builders and developers, choosing a bi-fold supplier involves much more than selecting a product.


Reliable fabrication, technical support, delivery performance and product consistency often have a greater impact on project success than the system itself.


Arkay has been manufacturing aluminium and uPVC glazing systems since 1975 and supports trade customers nationwide through technical advice, fabrication expertise and dependable service.


Our trade partners benefit from:



- In-house manufacturing

- Technical support

- Competitive trade pricing

- Reliable lead times

- Access to market-leading aluminium systems



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## Need Help Choosing the Right Bi-Fold Door?


[/nectar_responsive_text][nectar_responsive_text inherited_font_style="default" text_direction="default"]Every project has different requirements.


Whether you’re comparing sightlines, thermal performance, security specifications or opening configurations, our team can help guide you towards the most suitable aluminium bi-fold door system for your application.


Speak to Arkay today for technical advice, trade pricing or project support.[/nectar_responsive_text][nectar_responsive_text inherited_font_style="default" text_direction="default"]With over 50 years of fabrication expertise, in-house manufacturing using high quality materials, and a range of PAS 24-certified aluminium systems, Arkay is trusted by UK’s leading contractors and commercial installers. Our dedicated service teams, streamlined quoting, and reliable nationwide delivery ensure your projects run smoothly — from first measure to final install.[/nectar_responsive_text][nectar_cta btn_style="text-reveal-wave" heading_tag="h5" button_color="accent-color" text_color="#000000" button_border_thickness="0px" link_type="regular" alignment="left" alignment_tablet="default" alignment_phone="default" constrain_group_3="yes" constrain_group_4="yes" display="inline" display_tablet="inherit" display_phone="inherit" icon_family="none" link_text="Contact Us" margin_top="15" padding_top="15" padding_bottom="15" padding_left="35" padding_right="35" url="https://emotio.typeform.com/to/H77zbhzv"][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row type="full_width_background" full_screen_row_position="middle" column_margin="none" equal_height="yes" content_placement="middle" column_direction="default" column_direction_tablet="default" column_direction_phone="default" scene_position="center" top_padding="6%" bottom_padding="6%" text_color="dark" text_align="left" row_border_radius="none" row_border_radius_applies="bg" overflow="visible" disable_element="yes" overlay_strength="0.3" gradient_direction="left_to_right" shape_divider_position="bottom" bg_image_animation="none" shape_type="" gradient_type="default"][vc_column column_padding="padding-12-percent" column_padding_tablet="inherit" column_padding_phone="padding-3-percent" column_padding_position="all" column_element_direction_desktop="default" column_element_spacing="default" desktop_text_alignment="default" tablet_text_alignment="default" phone_text_alignment="default" background_color="#f8d849" background_color_opacity="1" background_hover_color_opacity="1" column_backdrop_filter="none" column_shadow="none" column_border_radius="none" column_link_target="_self" column_position="default" gradient_direction="left_to_right" overlay_strength="0.3" width="7/12" tablet_width_inherit="default" animation_type="default" bg_image_animation="none" border_type="simple" column_border_width="none" column_border_style="solid" column_padding_type="default" gradient_type="default"][nectar_responsive_text inherited_font_style="default" text_direction="default"]



# FAQ


[/nectar_responsive_text][divider line_type="No Line" custom_height="33px"][toggles style="minimal" accordion="true" accordion_starting_functionality="closed"][toggle color="Extra-Color-3" heading_tag="h4" heading_tag_functionality="default" title="What is a hidden aluminium window?"][nectar_responsive_text inherited_font_style="default" font_size_min="14px" font_size_max="20px" font_size_desktop="1.1vw" font_line_height="1.6" text_direction="default"]


A hidden window conceals the opening vent behind the outer frame, creating the appearance of fixed glazing while increasing the visible glass area and producing cleaner external elevations.


[/nectar_responsive_text][/toggle][toggle color="Extra-Color-3" heading_tag="h4" heading_tag_functionality="default" title="What are the benefits of tilt & turn windows?"][nectar_responsive_text inherited_font_style="default" font_size_min="14px" font_size_max="20px" font_size_desktop="1.1vw" font_line_height="1.6" text_direction="default"]


Tilt & turn windows provide secure everyday ventilation through the tilt position while opening fully inwards for easy cleaning, maintenance and maximum airflow.


[/nectar_responsive_text][/toggle][toggle color="Extra-Color-3" heading_tag="h4" heading_tag_functionality="default" title="Are Cortizo COR 70 HS windows energy efficient?"][nectar_responsive_text inherited_font_style="default" font_size_min="14px" font_size_max="20px" font_size_desktop="1.1vw" font_line_height="1.6" text_direction="default"]


Yes. The system incorporates a polyamide thermal break and supports both double and triple glazing, achieving window U-values from 0.8 W/m²K.


[/nectar_responsive_text][/toggle][toggle color="Extra-Color-3" heading_tag="h4" heading_tag_functionality="default" title="Can the COR 70 HS be specified for commercial projects?"][nectar_responsive_text inherited_font_style="default" font_size_min="14px" font_size_max="20px" font_size_desktop="1.1vw" font_line_height="1.6" text_direction="default"]


Yes. The system is suitable for residential developments, apartment buildings and commercial applications where slim sightlines, thermal performance and weather resistance are required.


[/nectar_responsive_text][/toggle][toggle color="Extra-Color-3" heading_tag="h4" heading_tag_functionality="default" title="What finish options are available?"][nectar_responsive_text inherited_font_style="default" font_size_min="14px" font_size_max="20px" font_size_desktop="1.1vw" font_line_height="1.6" text_direction="default"]


The COR 70 HS is available in a wide range of single and dual colour powder-coated finishes, including the full RAL colour range.


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