[ Overview ](/products/sliding-folding/conceptfolding-77) [ Technical information ](/products/sliding-folding/conceptfolding-77/technical-info) [ Downloads ](/products/sliding-folding/conceptfolding-77/downloads) Open tab menu # ConceptFolding 77 *Invite nature into your building* ![ConceptFolding 77](/sites/default/files/public/styles/product_header/public/inriver/images/68748_Private%20House%20Antwerp%208_1.jpg?h=f4c1150c&itok=NSwJXsXy) ![ConceptFolding 77](/sites/default/files/public/styles/product_header/public/inriver/images/68743_Private%20House%20Antwerp%208_6.jpg?h=d73728dc&itok=XcRU5890) ![ConceptFolding 77](/sites/default/files/public/styles/product_header/public/inriver/images/68745_Private%20House%20Antwerp%208_4.jpg?h=56d0ca2e&itok=D1xa9xud) ![ConceptPatio 45Pa](/sites/default/files/public/styles/product_header_lifestyle/public/inriver/lifestyle_image/103475_REYNAERS_3.jpg?h=35ea520a&itok=mtr3j5Ki) ConceptFolding 77 provides exceptional element sizes for maximal transparency and stunning aesthetics. Nature and indoors come closer together as the aluminium folding door system connects up to eight vents to draw the exterior inside. ###### Need help? Search and compare products [ Get started ](/products-0?f%5B0%5D=product_group%3A495&s=ConceptFolding%2077 "Get started") - ![High-quality folding doors](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116841_Performance.svg) High-quality folding doors - ![Best in class element sizes](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116843_Safety.svg) Best in class element sizes - ![From 2 to 8 vents, opening any way you want](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116846_Design.svg) From 2 to 8 vents, opening any way you want ## Endless possibilities Click on the buttons below to explore all variants. Design Energy Safety ![](/sites/default/files/public/styles/variant_project_teaser/public/inriver/images/68748_Private%20House%20Antwerp%208_1.jpg?h=f4c1150c&itok=Ob5VB5qa) ![](/sites/default/files/public/styles/variant_product_teaser/public/inriver/images/117201_CF77-FU_Double%20weather%20seal_3D_detail.png?itok=ZFPoWKvX) ![](/sites/default/files/public/styles/variant_product_teaser/public/inriver/images/117201_CF77-FU_Double%20weather%20seal_3D_detail.png?itok=ZFPoWKvX) ### Design Functional SlimLine The standard product offers a Functional design, which means it will fit any building style. [ More info ](/products/sliding-folding/conceptfolding-77/functional "More info") [ More info ](/products/sliding-folding/conceptfolding-77/slimline "More info") ![](/sites/default/files/public/styles/variant_project_teaser/public/inriver/images/76046_Private%20house%20Patio%201.jpg?h=56d0ca2e&itok=e25ccK07) ![](/sites/default/files/public/styles/variant_product_teaser/public/inriver/images/117201_CF77-FU_Double%20weather%20seal_3D_detail.png?itok=ZFPoWKvX) ### Energy High Insulation [ More info ](/products/sliding-folding/conceptfolding-77/high-insulation "More info") ![](/sites/default/files/public/styles/variant_project_teaser/public/inriver/images/109863_B-Door%20SEQ-4%20copy.jpg?h=56d0ca2e&itok=Mmu1z2dV) ![](/sites/default/files/public/styles/variant_product_teaser/public/inriver/images/117201_CF77-FU_Double%20weather%20seal_3D_detail.png?itok=ZFPoWKvX) ### Safety Burglarproof [ More info ](/products/sliding-folding/conceptfolding-77/burglarproof "More info") ## Product options Personalise ConceptFolding 77 with the following options ![Concealed Drainage](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116963_Concealed%20Drainage.svg)### Concealed Drainage No more plastic cover caps, enjoy those clean lines. ![Low Threshold](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116959_Low%20Threshold.svg)### Low Threshold Easy access, cleaner look. ![Zero Threshold](https://www.reynaers.ca/sites/default/files/public/inriver/icons/116984_Zero%20Threshold.svg)### Zero Threshold Entrance without boundaries, even with continuous flooring. The available options depend on profile and configuration choices. Please contact your Reynaers Aluminium representative. ## Technical details ### Thermal Insulation - **Super High** - Uw double = 0.35 Btu/hr.ft².°F - Uw triple = 0.27 Btu/hr.ft².°F ### Air-Water Tightness - Air = 0.1 cfm/ft³ - Water = 8 psf - ![ConceptFolding 77](/sites/default/files/public/styles/360_degree/public/inriver/360_degrees/117201_CF77-FU_Double%20weather%20seal_3D_detail.png?itok=qyTBQxDX) ### Max Weight - Vent = 264 lbs [ Full specifications ](https://www.reynaers.ca/products/sliding-folding/conceptfolding-77/technical-info) ![DigiTrace step 4](/sites/default/files/public/styles/cta_block_left/public/2023-12/Reynaers%20Aluminium-DigiTrace_35.jpg?h=b5e777bf&itok=gD2ORvzx) Effortless access to your element’s digital product passport ## DigiTrace A unique element identifier provides you with a wealth of information in a matter of seconds, eliminating the need for any manual search. A quick scan allows immediate access to all system and technical details specific to your element as well as to documentation, certificates and contact details of your fabricator. [ Discover more about DigiTrace ](/digitrace "Discover more about DigiTrace") ![DigiTrace](/sites/default/files/public/styles/cta_block_right/public/2023-12/Reynaers%20Aluminium-DigiTrace_38.jpg?h=b193cbc8&itok=brhyrck7) Effortless access to your element’s digital product passport ## You might also like ### Discover other products - ![ConceptPatio 68](/sites/default/files/public/styles/teaser_medium/public/inriver/images/61121_Maison%20Priv%C3%A9e%20-%20Le%20Pouliguen%20%20%2810%29.jpg?h=56d0ca2e&itok=1nooCt4c) *Sliding & Folding* ### ConceptPatio 68 *Elegance, Comfort and Security* [Learn more](/products/sliding-folding/conceptpatio-68) - Small sightlines for maximised daylight entrance - Large variety of configurations, including open corner and pocket doors - Ideal for renovation in moderate climates. - ![HiFinity](/sites/default/files/public/styles/teaser_medium/public/inriver/images/103766_PH%20Gent2_1.jpg?h=56d0ca2e&itok=dhQ1EmQD) *Sliding & Folding* ### HiFinity *The infinite view* [Learn more](/products/sliding-folding/hifinity) - Ultimate design freedom, matching each project requirement - Floor-to-ceiling and wall-to-wall fully concealed profiles - Elegant lines and an unobstructed view