To compare telescopic automatic sliding door brands, give each supplier the same entrance drawing and ask for a proposed layout and itemized package. You need to know how much clear passage remains when the panels stack, whether the header fits and who supplies and installs each part. Those answers help you choose a system and compare the cost of a complete entrance.
This guide compares SEPPES, GEZE, Record and dormakaba as examples with identifiable telescopic door products or operators. SEPPES publishes this article. The selection is illustrative, with no performance ranking or claimed affiliation between the brands. Confirm each supplier's package and availability for your market.
Compare Brands Against One Entrance Brief
Give every supplier the same opening width and height, required clear passage and available side space. Include a plan showing nearby walls, columns, fixed glazing and the direction people approach the entrance. Mark whether dimensions are structural, finished or preliminary.
Then describe the project use, expected traffic, leaf construction and access requirements. An office lobby with a card reader presents different operating questions from a shop entrance that opens freely during business hours. Your brief should also state who will supply the glass, fabricate the frames and carry out site installation.
Consider a hypothetical entrance with a column close to one side. One supplier may propose stacking all moving leaves to the opposite side; another may require space on both sides. Ask both to show the resulting passage on the same plan. The difference affects where people walk, not just how the door looks.
If you are still deciding how the door should open, start with standard versus telescopic automatic sliding doors. Use the brand comparison below once you are ready to assess specific telescopic systems.
Telescopic Automatic Sliding Door Brands to Compare
The official product sources below were checked on November 3, 2026. They establish specific products to discuss with suppliers. Availability, final configuration and the commercial package still need confirmation for your destination.
| Brand | Product starting point | Confirm for your entrance |
|---|---|---|
| SEPPES | Telescopic automatic sliding doors with project review of opening, stacking space, leaf arrangement and supply scope. SEPPES telescopic doors | Ask for a proposed entrance layout and itemized supply package based on your drawings. |
| GEZE | Slimdrive SLT: a telescopic system for narrow glass façades, with a low-height drive and two parallel tracks. GEZE Slimdrive SLT | Review the header section and the exact leaf configuration against your façade and available installation depth. |
| Record | TSA 20: a telescopic sliding-door system with published E-TSA and D-TSA layout drawings. Record TSA 20 | Identify the one-sided or two-sided arrangement and exact system variant before comparing capacity or dimensions. |
| dormakaba | ES 200 T: a modular telescopic sliding-door operator listed on dormakaba’s UK website for two- and four-panel arrangements. dormakaba ES 200 T (UK) | Confirm local availability and who supplies the leaves, profiles, controls and installation around the operator. |
On a narrow screen, scroll within the table to compare all three columns.
SEPPES: review the complete entrance and supply scope
SEPPES presents telescopic doors through project inputs such as opening dimensions, required passage, stacking area and leaf construction. Buyers can discuss complete-door supply or a separately supplied complete sliding-door operator system. For the latter, the proposed telescopic arrangement needs its own compatibility review.
GEZE: examine the façade and header section
The Slimdrive SLT page identifies narrow glass façades and limited side space as applications. It describes two parallel tracks and lists technical data for different leaf arrangements. If the visible header is an architectural concern, use that product information to request a section showing the full installation envelope. A low drive height does not answer the depth or mounting questions.
Record: identify the TSA 20 layout and variant
Record publishes E-TSA drawings for one-sided arrangements and D-TSA drawings for two-sided arrangements. Its TSA 20 information distinguishes variants, so ask the supplier to identify the exact equipment and matching drawing. Keep any capacity figure attached to that configuration when comparing offers.
dormakaba: separate the operator from the entrance package
The UK ES 200 T page describes a modular telescopic operator for two- and four-panel doors. That gives an integrator a named operator to discuss. Ask the local supplier which version is available and how the quoted package covers door leaves, profiles, sensors and other controls.
Check Clear Opening, Stacking Space and Header Depth
A telescopic layout uses multiple moving leaves that overlap as they open. The resulting passage depends on the chosen arrangement and the space the stacks occupy. Compare dimensioned drawings instead of applying one opening-width percentage to every brand.
Ask for both the closed and fully open positions. The plan should identify moving leaves, fixed panels, stack locations and the usable passage. A description such as “four-panel door” needs a drawing that makes clear which panels move. Check whether the passage remains centered or shifts toward one side.
Review the header in section as well as elevation. Its visible height, front-to-back depth, mounting support and access for servicing are separate dimensions. Check nearby ceilings, signs, façade framing and any recess intended to conceal the operator. The automatic sliding door dimensions guide explains the measurements to collect.
Would the proposed entrance still fit if the architect changed the frame profile or glass specification? Ask the supplier to review changes that affect leaf weight, overlap, guides or mounting. Keep the approved drawing revision with the order and have the supplier confirm any later changes.
Match the Operator, Door Leaves and Controls
A telescopic entrance needs a coordinated operator, leaf arrangement and control package. Provide the supplier with the intended leaf dimensions, frame and glass construction, hardware and moving weight. Ask for written confirmation that the proposed assembly suits that configuration.
For a complete-door quotation, list the moving leaves, fixed glazing, profiles, operator, sensors, guides, locks and access devices separately. For operator-system supply, identify what your local fabricator must provide and who checks the interfaces. A quotation headed “automatic door system” can still leave work outside the supplier's scope.
Have the supplier and the responsible site professional review activation, presence sensing, overlapping movement areas, locking and the intended response to power loss. Identify any escape-route obligations at the project stage. The selected equipment instructions and local project review should govern those decisions.
Do not assume a familiar-looking sensor, controller or replacement drive will work across brands. Record the interface requirements and ask the party integrating the entrance to accept compatibility responsibility. Our automatic door operator guide explains the role of the assembly; the customization guide helps organize project changes.
Compare Installation, Service and Whole-Package Costs
Before selecting a brand, identify who will install, commission and maintain the entrance at your location. Ask that team to review the proposed system and available instructions. Remote manufacturer support and a technician attending the building are different parts of the support arrangement.
For maintenance, establish how to identify equipment and request compatible parts. Keep the order reference, system variant, component labels and document revisions with the building handover record. Ask how the supplier handles substitutions, warranty claims and any charges for replacement freight or local labor.
Compare the total quoted scope: equipment, freight, locally sourced materials, fabrication, installation, commissioning and the agreed service work. A lower equipment price may leave more of those items with your contractor. Request a breakdown before deciding whether the difference is a saving.
The sliding door cost guide covers cost inputs, while the installation planning guide helps assign site responsibilities. Distributors choosing a range for repeat sales should also review brand selection for distributors.
Request Evidence Before Choosing a Brand
Put each proposal through the same checks. Record the document reference, your reviewer's decision and any unanswered question. Resolve layout or scope gaps before treating quotations as equivalent.
| Check | Request | Decision it supports |
|---|---|---|
| Entrance geometry | Dimensioned plan, elevation and header section for the proposed layout | The required passage, panel stacks and mounting space fit the same surveyed opening. |
| Exact equipment | System name, variant and applicable configuration sheet | Leaf construction and moving weight match the proposed equipment. |
| Supply boundaries | Itemized inclusions, exclusions and locally supplied work | Every component and interface has a named supplier or integrator. |
| Site delivery | Installation, commissioning and handover responsibilities | A qualified local team accepts the site work and has the relevant instructions. |
| Service and parts | Support contact, equipment identification and warranty process | The owner knows who attends the site and how to request compatible replacements. |
| Commercial offer | Quotation tied to the agreed layout and scope, with delivery terms | Price differences reflect an identifiable scope or term rather than missing work. |
On a narrow screen, scroll within the table to read each evidence requirement.
For example, if one offer includes glass and frames while another covers the operator, ask the second supplier and your fabricator to complete the missing scope. If a drawing leaves the open panel stack undimensioned, request that detail before approving the layout. These are specific issues you can close during quotation review.
Use the supplier quotation comparison guide when the written offers arrive. Keep the final selection tied to the approved drawing, scope list and commercial terms.
Discuss Your Telescopic Door Requirements With SEPPES
Send SEPPES your opening dimensions, target passage, available stacking area, header details and intended door construction. Include the destination, project use and available drawings or photographs. State whether you want complete doors or a complete operator system without door leaves.
SEPPES prioritizes complete door systems and also supplies complete automatic sliding door operator systems separately. A telescopic operator proposal requires review of the planned layout and locally supplied components. Confirm the itemized package rather than assuming every sensor, lock or access device is included.
Individual components generally serve existing customers' spare-part and repair needs. SEPPES can review sufficiently large standalone component orders according to the items, quantity and compatibility. Support includes online installation guidance and remote troubleshooting; arrange installation, commissioning and site attendance with a local team.
See SEPPES products, supply scope and project support for the wider offer. The quotation information checklist helps you prepare a complete first inquiry.
Telescopic Door Brand Questions
Which brands offer telescopic automatic sliding doors?
Examples include SEPPES telescopic doors, GEZE Slimdrive SLT, Record TSA 20 and dormakaba’s ES 200 T operator. These are different product and supply propositions. Confirm the exact system, regional availability and complete entrance scope with the supplier handling your project.
Which telescopic automatic sliding door brand is best for a narrow entrance?
Shortlist systems whose proposed drawings deliver your required clear passage within the available opening, stacking area and header space. Then compare package completeness, installation capability and service arrangements. A brand name or a maximum opening figure alone cannot establish that fit.
Does a telescopic door always provide a fixed percentage more opening?
No single percentage describes every entrance. The usable passage depends on the structural opening, profiles, panel overlap, stack positions and selected arrangement. Ask each supplier to dimension the clear opening on its proposed layout so you can compare the actual proposals.
Can we buy an operator and use our own glass and frames?
SEPPES supplies complete automatic sliding door operator systems separately without door leaves. For a telescopic project, submit the planned leaf construction, moving weight, panel arrangement and mounting details for compatibility review. Agree the included equipment and who integrates the locally supplied parts before ordering.
What information should we send for a telescopic door quotation?
Send the destination, project use, opening width and height, required clear passage, available stacking space, header details and preferred supply scope. Add drawings or site photographs, leaf construction, access-control needs and the planned installation arrangement. Identify preliminary dimensions so the supplier knows what still needs site verification.