Quick Guide to Using the «TELESCOPE» Online Calculator
Basic Principle: Telescope gates are a type of sliding gate consisting of 2 sections (more than 2 is considered a less reliable design). When opening, they slide behind each other, taking up nearly half the space required for a standard sliding gate.
Telescopic gates come in 3 types: Cantilever, Monorail (on-track), and Hanging. Any type can be automated.
To start, select the gate type, enter the «Entrance Width A1» and click «Calculate». The «Entrance Width» and «Space for Opening» parameters are interdependent and recalculate automatically.
To see prices and links to hardware kits, click the «Place Order» button. The calculator will redirect you to the shopping cart with all necessary components.
Diagrams and Parameter Decoding
• Cantilever Telescopic Gates
| Max. weight | System load capacity |
| Counterweight (C) | Tail section length |
| Base (B) | Distance between carriages |
| Edge (D) / Center (G) | Mounting points |
| Telescope (H) | Mechanism extension |
| Leaf №1 (F) / №2 (E) | Frame dimensions |
| Opening (A) | Clear entrance width |
| Total rollback (A2) | Required clearance space |
| Total length (J) | Overall structure width |
• Monorail Telescopic Gates
| Entrance Width А1 | Clear opening |
| Section №1 (A3) / №2 (А4) | Leaf widths |
| Total rollback (А2) | Opening space required |
| Monorail №1 / №2 | Guide track lengths |
Hanging Telescopic Gates: The calculator is still in development — coming soon!
ℹ️ The calculator does not estimate steel for the frames and does not account for gate height. Calculate materials and get drawings here:
All Gate Calculators →
