Side Folding
Security Doors
Commercial side folding security doors and grilles with endless design possibilities. Custom curves, emergency egress, and patented construction by Dynamic Closures.

Premium Security
Side Folding Design
Patented continuous hinged construction delivers superior strength and a cleaner appearance than traditional piano hinges — with no soot buildup over time.
Custom Curves
Any Configuration
Security doors with custom curves for 90°, 120°, 135°, and 150° angles — bent and heat treated in-house for the fastest delivery in the industry.
Up to 28 Feet
Unlimited Width
Curtains can span hundreds of feet wide and up to 28 feet tall. Counter height to full height openings with height-adjustable hardware available.
Features & Options
Dynamic Closures has a product for every security need. Feature-rich options included as standard, with custom options available to suit each project's unique demands.
Functional Locking Posts
Completely reversible for left or right-hand grip with flush-mounted hardware for a sleek look. The strongest locking posts ever, and the easiest to service.
Emergency Egress Doors
"Door within a door" fire exits available in different widths to accommodate wheelchair users and comply with ADA and local fire safety codes.
Pocket Door System
Pre-assembled and ships in the pocket for the easiest installation of any side folding door. Up to 8" wide pockets. Left and right hand openings available.
Custom Curves
Any curve configuration bent and heat treated in-house for fastest turnaround. Standard 90°, 120°, 135°, 150° plus custom angles available.
Patented Continuous Hinge
Revolutionary 1-piece continuous hinge eliminates soot buildup common with piano hinges, staying cleaner throughout the lifetime of the door.
Color & Material Options
Aluminum rod & link, polycarbonate, perforated steel, solid aluminum, or tempered glass. Finishes including anodized, bronze, champagne, and unlimited powder coat colors.
Optional Maglock
Electromagnetic lock withstanding 850 lbs of force. Connects to 12/24 VDC from your alarm system. Unlock via keypad or card reader — make keys a thing of the past.
Easy-Change Cylinders
1" mortise cylinder locks easily changed to work with your internal key system. Ongoing lock updates are just as easy to ensure old keys no longer work.
Floor & Counter Sockets
Dust-proof floor sockets with spring-loaded caps. Food-safe stainless steel counter sockets meet health code requirements for food service environments.
One-piece continuous hinge design eliminates soot buildup common with piano hinges — stays clean for the lifetime of the door.
Three Series
Choose the series that fits your pocket, visibility, and installation requirements.
Elite Series
Tightest Stack30–40% tighter stack than standard doors. Fewer vertical lines, more visibility. Lighter and easier to open and close. Perfect for retrofit situations where pocket depth is limited.
Specs
7" wide panels with 6–8% stacking ratio
Materials
Tempered glass, aluminum rod & link, polycarbonate, perforated aluminum, solid aluminum
Slim Line Series
Most VersatileAdapts to any pocket requirement including curves and L-angles. Sleek vertical lines allow maximum visibility for product display, even when closed. 5-inch stack uses more space for your secured area.
Specs
4" wide panels with 10–12% stacking ratio
Materials
Aluminum rod & link, polycarbonate, perforated aluminum, solid aluminum, checkerboard patterns
EZ Series
Pocket IncludedIncludes its own steel pocket frame and anodized aluminum pocket door — no need to build one on site. Arrives with the door pre-loaded in the pocket, saving installation time. 6" wide pocket fits flush with commercial wall studs.
Specs
4" wide panels, pocket included, up to 32 ft wide × 12 ft tall
Materials
Polycarbonate, aluminum rod & link, perforated aluminum, solid aluminum, checkerboard patterns
Perfect for Any Space
Airports, malls, pharmacies, schools, hospitals, offices, community centers, and any kind of public space.
Retail Stores
Secure storefronts with maximum product visibility when doors are closed
Mall Kiosks
Side folding closures for kiosks, inline stores, and island displays
Airports
High-traffic security closures for terminal retail and food service
Pharmacies
Secure controlled substance areas while maintaining open retail access
Hospitals
Security closures for gift shops, cafeterias, and restricted areas
Schools
Secure cafeterias, libraries, and common areas after hours
Office Buildings
Lobby and reception security with clean architectural aesthetics
Food Service
Counter-height closures with food-safe stainless steel sockets
Recreation Centers
Multi-use facilities requiring flexible space division and security
Built to Last
Dynamic Closures side folding doors require no motors, no bottom track, and minimal headroom (just 1-5/8"). Manual operation moves the curtain through creative layouts easily, saving costs on motors and electrical hookup.
Max Height
28 ft
Max Width
Unlimited
Bottom Track
None Required
Headroom
1-5/8"
Floor Clearance
1-1/4"
Operation
Manual
Why Choose Us
Authorized Dealer
Factory-trained installation and service
Custom Configurations
Curves, L-angles, and unlimited layouts
Emergency Egress
ADA-compliant fire exit doors available
Maglock Option
850 lb electromagnetic locking system
Ongoing Support
Maintenance programs and emergency service
Complete Security Solutions
Talius Roll Shutters
Automated roll shutters for vandalism, theft, and intrusion protection with insulated profiles.
View Product CommercialTalius Commercial Shutters
Heavy-duty commercial roll shutters for storefronts, warehouses, and industrial security.
View Product CounterSDI Counter Shutters
Rolling counter shutters for service windows, concession stands, and pass-throughs.
View ProductRecent Installations
Professional Dynamic Closures security door installations across commercial properties.
