Sectional loading bay doors

How much does a sectional loading bay door cost?

A sectional loading bay door typically costs £2,400 to £5,200 per door, excluding VAT, supply and fit, for a made-to-measure insulated door fitted and working.

Where your door lands in the range depends on:

• Opening size: larger doors need more panel area, heavier springs and longer track.
• Panel thickness and finish: thicker insulated panels and non-standard colours add cost.
• Track type: high-lift and vertical lift tracks use more steel and fixings than standard lift.
• Operation: an electric operator with safety edge and photocells costs more than chain or push-up operation.
• Vision panels and extras: glazed sections, interlocks to the leveller and links to traffic lights.
• Site conditions: removing an old door, making good the opening, getting power to the door head and out-of-hours working.

We price after a free site survey, and the written quote is the fixed price for the work described. You can compare typical figures on our price guide.

Do sectional loading bay doors have to meet energy and safety rules?

Yes. New and replacement sectional loading bay doors fall under building energy rules and workplace safety law, and the detail differs between the four nations.

• Energy: in England, Approved Document L (2021) Volume 2 sets a limiting U-value of 1.3 W/m²K for vehicle access and similar large doors in new and replacement work. Wales, Scotland and Northern Ireland each have their own energy rules, and we confirm the figure that applies to your nation and project.
• Falling back: the Workplace (Health, Safety and Welfare) Regulations 1992 in Great Britain, and the Workplace (Health, Safety and Welfare) Regulations (Northern Ireland) 1993, require upward-opening doors to have a device that stops them falling back. On a sectional door that usually means spring break and cable break protection.
• Product standard: BS EN 13241 is the product standard for industrial doors, and powered doors are also assessed against BS EN 12453 for safety in use.
• Marking: a powered door in Great Britain may be UKCA or CE marked, while in Northern Ireland it is the CE mark, or CE with UKNI, that applies.

Which track type suits my dock: standard, high-lift or vertical lift?

The right track depends on how much headroom sits above the opening and what is in it. Standard lift track turns the door through a tight radius so it parks just under the ceiling, and suits units with limited space above the lintel.

• Standard lift: needs the least headroom; the open door rests horizontally close to the head of the opening.
• High-lift: the door travels further up the wall before turning, keeping it above lighting, sprinkler pipes or overhead conveyors and away from forklift masts.
• Vertical lift: the door runs straight up the wall and never turns, which suits tall buildings with racking or cranes close to the opening.
• Low headroom: a special track arrangement for openings with very little space above, often found in older units.

We measure headroom, side room and back room at survey and check where lights, ducts and pipework run, because a door that clashes with services cannot open fully. Our door types guide compares sectional doors with shutters and high-speed doors.

Which types and options are available?

Typical specification

What happens on site when a sectional dock door is installed?

Fitting a sectional dock door often takes around a day per opening once the door is on site, though very large doors or awkward fixings take longer. The bay is out of use while the work is under way.

A typical installation runs like this:

1. The old door, if there is one, is taken down and removed from site.
2. Steel angles or packers are fixed to the opening so the tracks run true.
3. Tracks, springs and panels are assembled and the door is balanced.
4. The operator, safety edge, photocells and controls are fitted and wired.
5. The door is tested, adjusted and handed over.

Before we arrive you will need a clear area inside the opening for access equipment and the bay taken out of service. Electric doors also need a suitable isolated power supply near the door head, single or three-phase depending on the operator, which we confirm in the quote. On multi-door sites we work bay by bay so the rest of the dock keeps running.

Should a sectional dock door have vision panels or a wicket door?

Vision panels are worth adding on most dock doors, while wicket doors are rarely used on loading bays. A row of double-glazed windows lets staff see whether a trailer is on the bay and brings daylight into the dock area.

• Vision panels can be a single row at eye level or fully glazed sections in aluminium frames.
• Glazed sections lower the door's insulation, so on a heated or chilled building we balance daylight against thermal performance.
• Wicket doors are uncommon on docks because there is a trailer or a drop to the yard behind the door, so they rarely offer a safe exit. A separate pedestrian door beside the bay is usually the better answer.

It is also worth deciding now whether the door will be interlocked with the leveller, so the lip cannot be raised until the door is fully open. Adding links like this later is harder.

How long does a sectional loading bay door last and what wears out?

A sectional dock door can give many years of service, but its working life depends far more on how often it cycles and how often it is hit than on age. The parts that wear are predictable, so planned servicing catches most problems before the door stops.

• Torsion springs: rated for a set number of cycles, so a busy bay uses them up faster than a quiet one.
• Bottom and side seals: crushed by trailers and forklifts, and worth replacing as soon as they split.
• Rollers, hinges and cables: need lubrication and adjustment as the door beds in.
• Bottom panel: the panel most often struck by forklifts; individual panels can usually be replaced.

Bollards or guides inside the opening reduce impact damage. When a door is dented across several panels, the springs are near the end of their cycles and the operator is unreliable, replacement often makes more sense than another repair.

When is this the right choice?

• Your current shutter is single skin and the dock area is cold or draughty in winter.
• Springs have broken more than once and the door is heavy or uneven to lift.
• Several panels are dented and the door no longer seals against the floor.
• You are fitting out a new warehouse and need insulated doors that meet energy rules.
• Staff cannot see whether a trailer is on the bay without opening the door.

How the job runs

1. Free site survey

   We measure the opening, headroom and side room, check where services run overhead, and look at power, floor level and how the bay is used day to day.

2. Written quote

   You receive a fixed written price covering door size, panel thickness, track type, operation, safety devices, removal of any old door and workmanship terms.

3. Installation

   Engineers working under our management remove the old door, fit tracks, springs and panels, then wire the operator and safety devices with the bay out of use.

4. Testing and handover

   The door is balanced, powered doors are tested for safe operation, and your team is shown the controls, with the manufacturer's warranty paperwork handed over.

Sectional loading bay doors: questions

Related equipment and services

• Loading bay door automationMotors, controls and safety edges to power an existing manual door.
• Swing-lip dock levellersHydraulic pit levellers with a hinged lip for everyday trailer loading.
• Retractable dock sheltersCurtain shelters on a sprung frame that wrap around the trailer.

Further reading

• Loading bay door types compared: sectional, high-speed and more
• Loading bay costs in the UK: 2026 guide prices
• Energy rules and loading bay doors: U-values and air leakage
• Upgrading loading bays without stopping the operation

Sectional loading bay doors by area