When designing a modern warehouse or manufacturing plant, “standard” is a word that rarely applies. Architectural constraints, HVAC ductwork, and specific machinery often result in non-standard openings. Searching for custom industrial door sizes isn’t just about finding a door that fits the hole; it’s about finding a system that integrates perfectly with your facility’s unique spatial limitations.
At SEPPES, we specialize in engineering sectional overhead doors that solve the “tight fit” problem through precision customization and advanced tracking technology.
Why “Standard” Sizes Often Fail Industrial Operations
Most off-the-shelf industrial doors come in fixed increments. However, relying on a “close enough” fit leads to significant operational issues:
Energy Loss: Improperly sized doors create gaps in the perimeter seal, skyrocketing HVAC costs.
Safety Hazards: Forcing a standard track into a tight space can lead to mechanical strain and sudden failures.
Workflow Bottlenecks: A door that doesn’t open fully due to headroom constraints limits the height of the forklifts or cargo that can pass through.
The Functional Core: Custom Tracking for Custom Sizes
The most critical aspect of custom industrial door sizes is not just the width and height of the panels, but the tracking configuration. SEPPES provides four distinct lift types to ensure your custom door maximizes every inch of available space:
1. Standard Lift (Normal Headroom)
Ideal for facilities where the headroom above the opening is roughly equal to the door height. This is the most common custom configuration for retail warehouses.
2. High Lift (Space Optimization)
If your ceiling is significantly higher than the door opening, SEPPES High Lift tracks move the door panels vertically before turning them horizontally. This clears the space for overhead cranes or high-stacking shelves.
3. Vertical Lift (Full Clearance)
For facilities with massive ceiling heights, the door travels straight up the wall. This is the ultimate solution for maximizing floor space and avoiding interference with lighting or sprinklers.
4. Low Headroom (Tight Constraints)
In older buildings or underground facilities where ceiling space is at a premium, our Low Headroom customization allows for smooth operation with as little as 250mm–300mm of clearance.
Technical Specifications: The SEPPES Custom Standard
When we talk about custom sizes, we back it up with robust engineering. SEPPES sectional doors are built to the following specifications:
| Feature | Specification Range |
| Maximum Width | Up to 12,000mm (12m) |
| Maximum Height | Up to 10,000mm (10m) |
| Panel Thickness | 40mm or 50mm CFC-free Polyurethane |
| Wind Resistance | Class 3 – Class 4 (Depending on size) |
| Thermal Insulation | 0.38 W/m²K (Standard panel) |
Beyond Dimensions: Customizing for Environment
Customization at SEPPES goes beyond the tape measure. To solve real-world problems, we offer:
Vision Panels: Custom-placed windows for safety and natural light.
Pass Doors: Integrated “wicket” doors to allow pedestrian entry without cycling the large industrial door, saving energy and motor life.
Color Matching: RAL industrial coatings to ensure brand consistency across your facility.
Why Choose SEPPES for Your Custom Project?
With over a decade of experience and products exported to over 50 countries, SEPPES (Westgate) understands that a door is a critical piece of logistics infrastructure. Our custom industrial door sizes are manufactured using automated production lines to ensure that even a “one-off” custom size maintains the structural integrity of a mass-produced product.
Every SEPPES door is equipped with multifold safety protection, including:
Airbag safety edges.
Cable-break protection devices.
Spring-break safety systems.
Solve Your Space Challenges Today
Don’t let a non-standard opening slow down your operations. Whether you are dealing with restricted headroom or require a massive 10-meter wide entrance, SEPPES has the engineering expertise to deliver a precise fit.
