As a medical equipment supplier, you know ambulance stretcher fit isn’t one-size-fits-all. Different models have varying dimensions and mounting requirements, so you should always confirm exact specifications with your supplier before finalizing vehicle modifications. We provide full technical documentation for all our stretcher models, so your team can plan layouts with confidence. Contact us for model-specific measurements and installation guidance tailored to your ambulance fleet.
TriSheep currently publishes the MDK-D9 X-Frame Ambulance Stretcher with model-specific data: 200 × 56 × 100 cm unfolded and 200 × 56 × 38 cm folded. The page also lists a 43 kg net weight and 60 kg gross weight. These values make the model a useful worked example, but they are not a universal ambulance-stretcher standard and do not establish compatibility with any vehicle.
The procurement objective is simple: convert every fit assumption into a dimension, interface drawing, named evidence source and acceptance check. This guide stays within non-clinical purchasing and vehicle-integration planning. It does not provide patient-handling instructions, clinical suitability advice or safety thresholds.
Start with a dimension dictionary, not a three-number headline
Different suppliers may measure the same label from different points. “Length” may include handles, guards or bumpers in one document and exclude them in another. “Folded height” may describe a transport position, a lowest trolley position or a shipping state. Ask each bidder to annotate the actual measurement points on a drawing and state the configuration used.
| Dimension field | Buyer definition to request | Why ambiguity matters |
|---|---|---|
| Overall operating length | Furthest fixed points in the stated operating configuration | Affects door, aisle and compartment clearance |
| Overall width | Widest fixed or deployed component, with state identified | Determines lateral clearance and interior conflicts |
| Maximum and minimum height | Defined reference surface and adjustment state | Supports loading-height and interior-envelope review |
| Folded or lowered envelope | Exact folding/lowering procedure and resulting shape | Distinguishes storage, loading and operating states |
| Ground clearance | Lowest rigid point in the travel configuration | Supports ramp, sill and floor-transition checks |
| Wheelbase and track | Wheel-centre geometry and caster state | Helps assess rails, channels and floor features |
| Handle or guard projection | Deployed and stowed positions | Prevents late collision discoveries |
The buyer should also request tolerances where fit is tight. A nominal drawing without manufacturing tolerance, adjustment range or accessory projection can create false precision. Use consistent units and retain the supplier’s original document revision in the comparison file.
Build the vehicle envelope from measured evidence
In vehicle adaptation planning, constructing precise internal contours of vehicles based on actual measurement data is a critical prerequisite for ensuring the compatibility of medical devices. The cabin structures, floor heights, and sidewall curvatures of different vehicle models vary. Relying solely on theoretical parameters often fails to meet practical loading requirements. Obtaining real spatial data through on-site measurements can effectively avoid installation failures or usage inconveniences caused by dimensional discrepancies. We recommend that, before proceeding with any modifications, a comprehensive survey of the target vehicle should be prioritized, and cross-verification should be conducted using technical drawings provided by equipment suppliers. This will provide a reliable basis for subsequent equipment selection and layout design.
Do not record only static box dimensions. A stretcher moves through an arc as it crosses a sill, changes height, rotates or enters a guide. The relevant envelope can therefore be larger than the parked footprint.
| Vehicle-zone check | Minimum evidence package | Responsible reviewer |
|---|---|---|
| Entry opening | As-built width, height, threshold and door intrusion | Vehicle converter |
| Loading transition | Ramp/sill geometry and proposed loading sequence | Converter plus supplier |
| Interior travel path | Scaled plan with cabinets, seats and equipment | Layout coordinator |
| Parked position | Final fixation location and clearance envelope | Converter and fleet buyer |
| Service access | Space for inspection, cleaning and component access | Fleet maintenance reviewer |
| Exit route | Reverse movement study under the approved configuration | Converter plus end user |
Photographs are helpful context, but a scaled, revision-controlled drawing is better evidence. Mark the datum points shared by the vehicle and stretcher drawings. If either drawing changes, reopen the affected interface checks.
Separate published model data from the final supply configuration
The MDK-D9 page provides a concrete reference: unfolded 200 × 56 × 100 cm and folded 200 × 56 × 38 cm. It also lists the model as an X-frame ambulance stretcher. A buyer can place those published values into an initial envelope study, then ask TriSheep to confirm the current quotation configuration and issue the corresponding technical sheet and drawing.
That confirmation matters because accessories, restraint arrangements, fixation components, guards, mattress or packaging may be handled differently in a commercial offer. A website value should not be silently combined with an accessory list from another model or an undated brochure. Keep one model-and-revision line across the RFQ, quotation, drawing, purchase order, inspection record and handover file.
| Data status | Permitted procurement use | Required next action |
|---|---|---|
| Public product-page value | Early screening and supplier questions | Obtain current model-specific document |
| Quoted technical value | Bid comparison if model and revision match | Resolve conflicts and exclusions |
| Approved supplier drawing | Vehicle coordination baseline | Freeze revision before production |
| As-built/inspection result | Acceptance evidence | Record deviations and disposition |
Treat fixation as an interface, not an accessory line
A stretcher and a vehicle fixation system form an interface. Overall dimensions alone do not show the location, geometry, engagement sequence, release access or structural responsibility of that interface. Ask for a fixation drawing that identifies every supplied component, mounting point, fastener boundary, required vehicle structure and operating clearance.
The buyer should make responsibility explicit. Does the stretcher supplier provide the fixation assembly? Does the converter provide the vehicle reinforcement and installation? Who verifies alignment after flooring is installed? Who supplies installation instructions, inspection criteria and replacement parts? These are commercial and engineering questions that should be closed before award.
Never infer a safety or regulatory conclusion from a shared certificate logo or a general product category. Destination-market reviewers must evaluate the exact model, intended use, vehicle system, documentation scope and applicable local requirements. Where a standard or test report is required, ask for the exact edition, test object, configuration and report scope rather than accepting a general statement.
Add loading geometry and movement states to the fit matrix
Fit approval should compare several states: parked, unloaded transfer, loading transition, fully entered, lowest or folded state, service state and any state created by the selected accessories. For each state, record the stretcher envelope, vehicle envelope, clearance and evidence source. Do not create an arbitrary universal clearance number in the RFQ; the responsible vehicle and technical teams should define acceptable margins for the project.
Loading height is not merely the maximum stretcher height. It may involve wheel geometry, leg or frame transition, sill height, loading deck and the supplier’s approved operating sequence. Request a side-view interface drawing. If the supplier cannot provide enough information, schedule a controlled physical fit check using the exact offered model or a documented equivalent, with every difference listed.
Check the route beyond the ambulance doorway
Procurement teams often focus on the vehicle and overlook the complete logistics route. Measure the receiving dock, workshop door, storage area, inspection space and any lift or corridor used before the unit reaches the vehicle. Record whether packaging must be removed and where that can happen without losing labels, parts or inspection evidence.
The TriSheep page lists 60 kg gross weight for MDK-D9 but does not publish final package dimensions on the page. That is a clear buyer checkpoint: request the current packing method, packed dimensions, gross weight, package count and lifting/handling marks with the quotation. Final shipment data, not the website alone, should be used for freight and warehouse planning.
Issue a model-specific data request with the RFQ
A strong request gives suppliers a table to complete instead of asking, “Will it fit?” Include:
- exact manufacturer, model and configuration code;
- dimensioned plan, side and end views with measurement points;
- all operating, folded, loading and parked envelopes;
- mass, packed mass, package dimensions and centre-of-gravity information if available;
- wheel, track, ground-clearance and loading-interface geometry;
- fixation components, vehicle-side requirements and installation boundary;
- projections created by guards, handles, mattress, straps and selected accessories;
- operating, installation, inspection and maintenance documents;
- document numbers, revisions and issue dates; and
- a deviation list against the buyer’s vehicle-interface schedule.
The World Health Organization’s technical-specification user guide explains that technical specifications can support tendering, procurement, maintenance planning and technical-information searches. Apply that discipline here by making each requested value traceable and reviewable; the WHO publication does not validate a particular stretcher or vehicle pairing.
Use a staged fit-approval process
First, screen published information to remove obvious mismatches. Second, compare the current supplier drawing with the vehicle design. Third, close every technical clarification and freeze the offered configuration. Fourth, use a pre-production, sample or factory fit check when the project risk justifies it. Fifth, perform incoming and vehicle-level acceptance against the approved matrix.
| Gate | Evidence | Fail-closed result |
|---|---|---|
| Initial screen | Published model data and vehicle envelope | Do not shortlist an obvious mismatch |
| Drawing review | Matched model and vehicle revisions | Hold if datums or states are unclear |
| Configuration freeze | Signed schedule and deviation log | Do not approve undocumented substitutions |
| Physical verification | Exact unit or documented equivalent | Record every difference and unresolved item |
| Final acceptance | As-built vehicle, supplied unit and records | Quarantine discrepancies for disposition |
Acceptance is not a clinical trial. It can verify identity, dimensions, interfaces, movement through the defined route, fixation engagement under the responsible team’s protocol, supplied documents and ordered accessories. Any clinical use assessment belongs to qualified local personnel under their own governance.
FAQ
Is there one standard ambulance stretcher size?
This guide does not define one universal size. Standards, vehicles, models and project requirements vary. Compare the exact offered model with the intended vehicle and the destination-market requirements.
Are the MDK-D9 published dimensions enough to approve fit?
No. They support early planning, but final approval also needs measurement points, configuration, tolerances, loading geometry, fixation details, vehicle drawings and responsible technical review.
Should folded dimensions be used for the vehicle compartment?
Only if the supplier confirms what “folded” means and that the state is relevant to the approved loading, parking or storage process. Do not assume a shipping or lowered state represents normal vehicle use.
What if two supplier documents show different values?
Log the conflict, identify both revisions and request a controlled clarification. Do not average the values or choose the more convenient one.
How should buyers compare several models?
Use the same dimension dictionary, vehicle envelope, fixation fields, configuration states and evidence rules for every model. Keep unknowns visible instead of scoring them as compliant.
Turn the fit study into a clear supplier request
Send the vehicle envelope, interface drawing, dimension dictionary, selected accessories and acceptance plan with the inquiry. Buyers can use the current MDK-D9 page to identify the model and request current drawings, packing data, fixation details and quotation scope. Final compatibility and use decisions remain with the buyer’s qualified vehicle, technical, regulatory and operational reviewers.