Aluminum Doors for Wider Openings
Slim aluminum door systems for expansive openings, wider views and project-specific performance — selected around how the space should open and connect.
CHOOSE BY OPENING TYPE
Choose How the Opening Should Perform.
Start with the opening experience — slide, lift, fold or swing — then refine panel size, sightline, threshold, glass, hardware and performance around the project.
Slim Sliding Doors
Large glass panels and minimal visible framing for wide views and a clean indoor-outdoor connection.
Lift & Slide Doors
A large-panel solution where smooth operation, sealing and project-specific structural requirements are priorities.
Bifold Doors
Multi-panel folding configurations designed to open a larger proportion of the wall and create flexible transitions between spaces.
Hinged & French Doors
Single- and double-leaf aluminum doors for entrances, balconies and architectural openings requiring familiar swing operation.
CHOOSE BY DESIGN & PERFORMANCE
Large Openings Need More Than a Door Type.
ALTOP helps narrow the system around project priorities: Slim Systems · Large Glass Solutions · Thermal Performance · Acoustic Performance · Coastal & High-Wind Applications.
Key Specification Considerations
Visible Sightline · Maximum Practical Panel Size · Glass Make-up · Thermal Performance · Air & Water Tightness · Structural Load · Threshold Detail · Drainage · Hardware · Installation Interface
FOR ARCHITECTS & PROJECT TEAMS
Resolve the Opening Before It Reaches Site.
Large door openings benefit from early coordination. Share plans, elevations, door schedules, rough openings, threshold conditions and target performance so system direction, glazing, hardware and interfaces can be reviewed before quotation and detailing.
PROJECT APPLICATIONS
Selected Around the Architecture.
Luxury Residential · Coastal & High-Wind · Apartments & High-Rise · Hospitality & Commercial
Door configuration changes with opening width, panel weight, exposure, threshold strategy, façade design and installation conditions. The right system is selected around the project, not only the product name.
Have Large Openings to Resolve?
Send your floor plan, door schedule or rough opening sizes. We’ll help narrow down suitable systems and the technical questions that should be resolved before quotation.