Crimsafe Sliding Stacker Security Doors:
Full Strength Across Every Panel
The bigger the opening, the
bigger the risk. Crimsafe sliding stacker security doors secure wide spans without a single weak panel.
Crimsafe Stacker sliding security doors open up your living space, but they also open up one of the largest unsecured entry points in the average home.
Crimsafe Sliding Stacker Doors are engineered specifically for multi-panel openings, using the same 0.9mm Tensile-Tuff® mesh and Screw-Clamp® fixing across every panel, so the whole span holds the line — not just the panel nearest the lock.
Why Homeowners Choose Crimsafe Sliding Stacker Security Screens.
Stacker doors are popular because they turn a wall into an opening, connecting indoor and outdoor living. But that same width is exactly what makes them a target — more glass, more panels, and often only one point of lock. Standard security screens built for a single sliding door simply weren’t designed to span three, four, or five panels without sagging, binding in the track, or leaving gaps between panels that compromise the whole system.
Crimsafe Sliding Stacker Doors are purpose-built for these larger openings, with a track and frame system engineered to carry multiple panels smoothly, while keeping the same full-strength protection on every single one.
Heavy-Duty Track, Roller & Interlock System
Every Crimsafe sliding stacker security door insatlled by Alcom runs on heavy duty tracks & rollers, engineered to carry the extra weight of the full-strength mesh and frame without sagging, sticking, or coming off track — even after years of daily use.
Where it really counts is the interlock — the point where the moving panel meets the fixed frame.
Inferior products and cut-corner installations rely on a standard interlock, which is like trying to hang onto a cliff edge with your fingertips: a small contact point that’s easy to lever apart under real force.
Alcom uses a heavy-duty interlock instead, giving you the security of holding on with your whole palm — a much deeper, stronger point of contact that spreads the load and closes off the gap an intruder would otherwise pry against.
Same Superior Crimsafe Strength
All Crimsafe products exceed Australian standards of 500 joules of impact.
Crimsafe Ultimate withstands up to 750 joules of impact. *Crimsafe Classic withstands up to 550 joules of impact.*
Australian made, Crimsafe Security Screens exceed Australian security standards and are the most trusted on the market.
Triple Deadlock, Parrot Beak & Flush Bolt Locking System
A single-point lock is a single point of failure.
Crimsafe sliding stacker security doors use a triple deadlock system with a parrot beak locking mechanism, anchored into a reinforced frame so the load spreads across the whole door instead of concentrating at the handle.
Instead of a standard latch that simply clips into place, the parrot beak hook curls around the strike plate and locks in from three points along the frame — top, middle, and bottom — so prying, jemmying, or forcing the door at any single point does nothing.
On multi-panel configurations, flush bolts secure the fixed or passive panel directly into the head and sill track, so that panel can’t be popped loose or levered out from the side while your attention is on the panel you actually use.
Between the triple deadlock, the parrot beak hook, and the flush bolts holding the fixed panel firm, there’s no single weak point for an intruder to target — every part of the door locks down together.
Completely Secure Your Home with Alcom + Crimsafe
Every Crimsafe Sliding Stacker Security Door is manufactured in-house at our Yatala factory, not outsourced or drop-shipped. Alcom Security holds dual accreditation with both Crimsafe and 3M — the highest tier of accreditation either company awards — and we’ve completed more than 100,000 installations across South East Queensland, including Brisbane, the Gold Coast, Sunshine Coast, Redlands, Ipswich, Moreton Bay, Toowoomba, and the Scenic Rim.
We measure it, we build it, we install it. One team, start to finish.
FAQS
We build configurations to suit your opening, from two-panel setups through to wide five-panel spans. We’ll recommend the right configuration during your measure.
No. Our stacker track and frame system is specifically engineered to carry multiple heavy-duty panels without sagging or binding, unlike standard screens adapted for smaller doors.
Yes. Every panel uses the same 0.9mm Tensile-Tuff® mesh and Screw-Clamp® fixing, so there’s no weaker panel in the middle of a wide span.
Every Crimsafe screen and door installed by Alcom comes backed by an industry-leading warranty of up to 15 years, and the stainless steel mesh and aluminium frame are built to handle Queensland’s climate without corroding or degrading.
No. The Tensile-Tuff® mesh maintains airflow and visibility across every panel, and the panels stack cleanly out of the way, so you keep the open, connected feel stacker doors are designed for.
Yes. Alcom Security holds accreditation with both Crimsafe and 3M — the highest tier of accreditation either company awards to a dealer.
Crimsafe uses 0.9mm 304-grade Tensile Tuff® stainless steel mesh, fixed into the frame with a patented Screw-Clamp® system rather than a glued or wedged rubber seal. When impacted, the load spreads across the whole frame instead of concentrating on one weak point, which is why Crimsafe consistently outperforms standard screens in independent impact testing.
All products are manufactured in-house at our Yatala factory. We don’t outsource manufacturing, which means tighter quality control and faster turnaround from measure to install.
Alcom Security has been a family-owned and operated business since 1993, with a track record of more than 100,000 installations across South East Queensland.
We service Brisbane, the Gold Coast, Sunshine Coast, Redlands, Ipswich, Moreton Bay, Toowoomba, and the Scenic Rim, with a dedicated team covering each region.
Yes. We regularly pair Crimsafe sliding doors with 3M Security Film on the surrounding glass for even greater protection. Chat to our team about combining the two.
Request your free quote for a Crimsafe Sliding Stacker Security Doors
We can also match Crimsafe Doors with other 3M Security range for even greater protection. Chat to our customer service team about pairing your new Crimsafe with 3M Security Film on (07) 3801 4500