How to save energy and money with the right dock shelter – an inconspicuous detail with a big impact
Stop drafts, reduce temperature fluctuations, improve hygiene and pest control – with precisely fitting gap seals for gates and doors.
Why dock shelters?
Small gaps in the door act like a window that's always tilted. Cold air flows in, warm air disappears – heating and cooling work against it.
A suitable gap seal interrupts the airflow directly at the source. The result: more stable temperatures, less dust, and significantly more comfortable work.
Bonus: Many of our solutions come with integrated rodent protection – ideal for warehouses, production areas, and food processing areas.
Typical leaks – where energy escapes
Sectional door
- Floor and side areas (uneven ground, settlements, profiles).
- Side guide rails: gap to the reveal.
Roller shutter & high-speed door
- Bottom edge/floor – especially with frequent use.
- Lateral areas at indoor air pressure.
Loading technology
- Ramp/bridge to the hall wall (gap 4–30 mm and more).
- Rear hinge side – hard-to-reach leak.
Steel doors
- Floor and side joints, often without brush seals.
- Side joints on non-flat door leaves.
Which solution for which type of gate?
| Gate/door type | Recommended systems | Sealing range (typ.) | Assembly | Direct link |
|---|---|---|---|---|
| Sectional door | DoorMag / MagSeal Kits | variable length/width, stainless steel mesh (rodent protection) | Magnetic, optional adapter strap | collection |
| Rolling shutter / high-speed shutter | SAMTR / RollMag + Kits | different widths (e.g. 290/360 mm) | Magnetic, optional adapter strap | collection |
| Loading technology | DockMag SAML 35/60 + Hinge (rear) | approx. 4–30 mm (depending on model) | Magnetic, tool-free | collection |
| Steel doors | PedDoorMag SAMT | e.g. B. 4–55 mm (depending on model) | Magnetic, can be shortened | collection |
Note: Adapter strips (SMB 100) are available for non-magnetic surfaces. For steel doors: Do not use on fire doors.
Quick dial in 3 steps
- Gate/door type & use: Sectional, rolling/high-speed, ramp, steel door – observe operating frequency & hygiene requirements.
- Check gap size: With calipers or test strips – roughly: up to ~30 mm (dock/many door solutions), for larger gaps, consult us.
- Surface & length: Magnetic? → Direct mount. Non-magnetic? → Adapter tape . Select the length to fit the opening; can be shortened if necessary for doors.
Products & Direct Links
Sectional doors (rodent protection + energy efficiency)
DoorMag gap seal 400 mm – variable length/color, stainless steel wire mesh.
MagSeal Kit 9200×450 mm – Complete set for large openings.
MagSeal gap seal – stainless steel mesh, flexibly configurable.
MagSeal Kit DoorMag 400 mm – 9.2 m complete sealing.
Roller shutters & high-speed doors
SAMTR 36 – magnetic gap sealing 1–9.2 m.
SAMTR 29 – more compact, for narrower gaps.
MagSeal Kit RollMag 360 mm – 9.2 m complete set.
MagSeal Kit RollMag 290 mm – 9.2 m complete set.
Rodent protection plates – protects side seals.
Loading technology (ramps, loading bridges, lifting platforms)
DockMag SAML 35 – 1 m set – 2 seals, magnetic.
DockMag SAML 35 – 2 m set – for gaps approx. 4–30 mm.
DockMag SAML 60 – 1 m – robust profile.
DockMag SAMLH 40 – hinge side (rear).
DockMag SAMLH 60 – hinge side (rear).
Steel doors (side doors, technical doors, basement)
PedDoorMag SAMT 1.0 m – magnetic, can be shortened.
PedDoorMag SAMT 1.5 m – for wider doors.
PedDoorMag SAMT 2.5 m – maximum coverage.
MagAdapter Band SMB 100 – for non-magnetic doors.
Measurement & assembly
How to measure correctly
- Length: usable width of the opening (left–right) or door leaf length.
- Gap: largest dimension in rest position (check several points).
- Surface: magnetic (steel) OK ; otherwise provide adapter tape.
Assembly coming soon
- Clean the surface, dry and free of grease.
- Align the seal, attach it magnetically, and press it on.
- For doors, trim to length if necessary; deburr edges cleanly.
Important: Door seals are not approved for fire doors. For ramps, seal the rear (hinge side) with special hinge profiles.
Practical examples
Logistics (roller shutter)
Frequent openings, heavy traffic: magnetic roller shutter seal + side protection panels reduce drafts and keep rodents away.
Food (ramp)
DockMag sets seal 4–30 mm gaps on the bridge. A clean transition and improved temperature stability in the receiving area.
Workshop (sectional door)
DoorMag/MagSeal eliminate drafts at floor level. Less dust, a more pleasant climate – noticeable in winter.
Side doors (steel)
PedDoorMag is quick to install, can be shortened, and is magnetically attached. Ideal for basements and utility rooms.
FAQ
How do I find the right width?
Select according to the gap size: for ramps, for example, 4–30 mm. For roller shutter doors, consider the required sealing width (e.g., 290/360 mm).
Does this stick to aluminum/stainless steel?
With SMB 100 adapter tape, yes – for non-magnetic surfaces.
Does this have a measurable impact on heating costs?
Seals reduce infiltration (drafts). Less cold air in, less warm air out – the system operates more smoothly. Figures depend on the property and its use.
Is this suitable for high-speed doors?
Yes, the SAMTR/RollMag systems are designed for this application. Lengths up to 9.2 m are available (set versions).
Can I use door seals on fire doors?
No. Door seals are not approved for fire doors.
