The narrowest doorway is only one part of a large-cage delivery route. Gates, lifts, stairs, landings, corridor turns, ceiling height, thresholds, package protection and the final operating clearance can each become the real limit.
Measure a route—not a single door
Start where the vehicle or pallet will be unloaded and finish where the cage will be used. Walk the route in order and number each restriction. A large panel that passes through the front door may still fail at a ninety-degree corridor turn or a stair landing.
| Route stage | Measurements to record | Details often missed |
|---|---|---|
| Arrival and unloading | Vehicle access, gate width/height, unloading area and distance to the entrance. | Tail-lift or forklift access, slopes, steps, gravel and whether a pallet can remain level. |
| External entrance | Clear opening with the door fixed in its actual open position. | Handles, hinges, closer arms, thresholds, security gates and fixed weather bars. |
| Corridors and turns | Clear width, ceiling height, turn angle and space before and after the corner. | Radiators, rails, cabinets, lights, low beams and doors that cannot fold flat. |
| Lift | Door width/height and clear cabin width/depth/height. | Handrails, control panels, load limit, door dwell time and the space needed to rotate a panel. |
| Stairs and landings | Clear stair width, rise, overhead clearance and every landing dimension. | Diagonal carrying angle, banisters, newel posts, ceiling slope and people standing around the component. |
| Final room | Room door, final turn, installation position and working clearances. | Tray pull, door swing, acrylic travel, wheel turning and access for assembly tools. |
Record the clear opening—not the frame size
Measure between the closest fixed or unavoidable points after the door is open. The nominal building-door size may include a frame or leaf that reduces the actual passage. Record both clear width and clear height, then photograph the tape measure at the restriction.
Also note whether the cage, panel or crate can be tilted. A rigid cage with a roof, wheels, locks or handles may have protrusions that prevent a theoretical diagonal movement. Do not remove a structural part merely to make the route work unless the product was designed and documented for that removal.
Straight-through fit does not prove a corner fit
A long rectangular component needs space to rotate. Corridor width, panel length, panel thickness, ceiling height and the position of the next opening all affect the turn. A simple comparison between panel width and door width cannot confirm it.
Mark the largest component on lightweight cardboard, battens or taped floor lines. Carry the template through the route in the intended orientation. Record a short video showing every turn and overhead restriction.
The template must represent the protected transport size, not only the bare metal panel. Corner guards, wrapping, crate rails and projecting hardware add to the carried envelope.
For a modular cage, identify the largest and heaviest piece
“Modular” does not mean every part is small. A cage can use detachable sections while one door panel, floor frame, roof or tray remains much larger than the others. The final specification should record:
- Number and outside dimensions of all modules or panel families.
- Largest protected length, width, height and diagonal.
- Heaviest individual component and safe handholds.
- Parts that must remain upright or cannot support stacking loads.
- Tools, people and temporary support needed at the installation point.
- Finished joint checks before the bird enters the cage.
Read Welded vs Modular Bird Cages before changing the construction only to reduce freight volume.
Special checks for stairs and lifts
The cage still needs room after delivery
Delivery success is not the final fit test. Mark the finished cage footprint and extend every moving part on the plan:
- Main and service doors at their full opening angle.
- Waste trays and floor grilles at their full removal length.
- Side-sliding or upward-removable acrylic frames.
- Feeder doors, bowl removal, wheel brakes and handles.
- Assembly fasteners that require a tool beside or behind the cage.
For a wall-mounted cage, show the actual wall material, desired mounting height and unobstructed area around the support rail. The total loaded weight and leverage must be reviewed with the wall and fixings; a wide clear route does not make an unsuitable wall safe.
Finished dimensions and packed dimensions are different
A fixed cage normally occupies close to its finished volume, with additional protection around doors, bars, decorative work and polished surfaces. A modular cage can reduce the largest dimension, but the crate, pallet, separators and hardware box still add size and weight.
An international freight enquiry should therefore distinguish:
| Data | Why it matters |
|---|---|
| Assembled cage dimensions and weight | Final location, floor or wall load and movement after assembly. |
| Individual protected components | Doorways, lifts, stairs and safe manual handling. |
| Package or crate dimensions | Carrier limits, freight volume and warehouse handling. |
| Pallet footprint and total gross weight | Tail-lift, forklift, dock and destination receiving capability. |
Construction examples from the current Bật Mạnh range
| Example | Initial route implication | Information confirmed for an order |
|---|---|---|
| 50 × 30 × 30 cm fixed flight cage | The compact welded body may be practical to carry as one protected cage. | Final protrusions, package size, weight and complete route. |
| Approximately 80 × 38 × 50 cm modular flight cage | Detachable construction can reduce the size of the largest carried assembly. | Actual module count, largest piece, hardware, support and assembly sequence. |
| Made-to-measure long flight cages | Lengths over 1.2 m and over 2 m require coordinated modules, supports and divided trays rather than one assumed delivery format. | Final length, access route, module size, tray sections, packing and installation method. |
What to send with the first enquiry
- A route list: every gate, door, corridor, turn, lift, stair and landing in order.
- Clear measurements: width × height for openings and width × depth × height for cabins or landings.
- Photographs: a wide view of each restriction plus a close view with the tape measure visible.
- A continuous video: walk from unloading point to final position without skipping corners.
- Receiving details: country, postal code, residential/commercial address and pallet-unloading capability.
Add this information to the custom bird-cage quotation checklist. Bật Mạnh can then compare a fixed cage, detachable modules and the final installation process using the same measured route.
Discuss the bird, cage and installation space
Send the bird species, target dimensions and clear photographs for an early technical discussion. Overseas transport is reviewed separately and is not presented as a standard checkout service.