One Tent. Room for the Whole Crew.
The Alu-Cab RT-4S takes the hard-shell rooftop tent into genuinely family-sized territory. With more than 4.5 m² of sleeping space, a huge 2235 x 2050 mm sleeping platform, three-point access, integrated power and serious interior storage, this is a rooftop tent built for families, groups and travellers who simply want more room.
A Rooftop Tent That Actually Sleeps the Family.
Most rooftop tents make you work around their size. The RT-4S changes the equation. Its flip-out sleeping platform creates a huge interior that can accommodate four adults, giving families and groups one proper rooftop sleeping space instead of splitting camp between multiple tents or putting someone on the ground.
This is not simply a larger two-person tent. The RT-4S was engineered around the idea that a vehicle-based camp can have a genuine family bedroom upstairs.
Over 4.5 Square Metres Above the Vehicle.
Open, the RT-4S measures approximately 2400 x 2183 mm (7 ft 10 1/2 x 7 ft 1 15/16 in). The sleeping platform itself measures 2235 x 2050 mm (7 ft 4 x 6 ft 8 11/16 in).
That extraordinary footprint comes from the RT-4S flip-out architecture, allowing the tent to create far more sleeping area than the roof space it occupies while travelling.
Big Tent. Serious Engineering.
Creating this much usable space on a vehicle roof requires more than simply making everything bigger. The RT-4S combines Alu-Cab's lightweight aluminium construction with a reinforced base, fold-out sleeping platform and integrated ladder support.
- Lightweight aluminium frame and reinforced base construction
- Double-layer 280 gsm UV-resistant ripstop canvas
- Integrated telescopic ladder stored inside the tent
- Ladder supports up to 150 kg (331 lb) when deployed
- Marine-grade UV-resistant clear PVC skylight
- Raised exterior ventilation point
- Dedicated heater vent
- Fly sheet included
- Available in left- or right-hand opening configurations
Camping in colder weather? Route warm air into the RT-4S through its dedicated heater vent using a compatible Planar Portable Diesel Heater .
Power, Storage and Space to Live.
The RT-4S interior is designed for more than simply lying down. Alu-Cab builds in the storage, lighting and power needed when several people are actually living out of the tent.
- 12 integrated canvas storage bags
- Two dual-colour red and white LED lights with dedicated switches
- 2 USB charging ports
- 4 USB-C charging ports
- 2 x 12V automotive-style power sockets
- Solar-ready electrical system
- Three access points for easier movement and airflow
- Light bedding can remain stored toward the rear when the tent is closed
Built for Travelling Together.
The advantage becomes obvious once camp is established. One vehicle, one rooftop tent and sleeping space for the group. For family trips, long-distance travel or weekends with friends, the RT-4S keeps everyone together while preserving the simplicity that makes rooftop camping so appealing.
Huge at Camp. Compact on the Road.
Closed, the RT-4S measures approximately 2400 x 1400 mm (7 ft 10 1/2 x 4 ft 7 1/8 in).
Integrated mounting rails allow the tent to work with compatible load bars, roof trays, solar panels and additional Alu-Cab equipment, so the roof can remain functional even with a large family tent installed.
Because of its size and approximately 127 kg (280 lb) installed weight including mattress and ladder, proper vehicle and rack load capacity is critical. Professional fitment is strongly recommended.
More Than a Rooftop Tent.
The RT-4S becomes even more capable when it is built into the broader Alu-Cab vehicle system. Canopies, Shadow Awnings and roof-mounted equipment can turn one vehicle into a complete travel platform.
Real Canadian Adventure.
This RT-4S is installed on a Cap-it Squamish vehicle and being used in the mountains of British Columbia.
From South African engineering to Canadian mountain travel, this is exactly the kind of vehicle-based adventure the RT-4S was built for.
A Tent This Size Deserves the Right Foundation.
The RT-4S is a substantial rooftop tent and requires a properly rated mounting system. Alu-Cab recommends three 1450 mm load bars for suitable installations.
Vehicle roof limits, rack limits, canopy capacity, mounting position and total vehicle load should all be considered before installation. Cap-it can help determine whether the RT-4S is appropriate for your vehicle and provide professional installation through participating locations.
Alu-Cab RT-4S Specifications
| Sleeping Capacity | 4 people |
|---|---|
| Sleeping Area | More than 4.5 m² |
| Sleeping Platform | 2235 x 2050 mm (88 x 80 11/16 in) |
| Open Dimensions | 2400 x 2183 mm (94 1/2 x 85 15/16 in) |
| Closed Dimensions | 2400 x 1400 mm (94 1/2 x 55 1/8 in) |
| Approx. Weight | 127 kg (280 lb) including mattress and ladder |
| Approx. Weight Excluding Mattress & Ladder | 118 kg (260 lb) |
| Canvas | Double-layer 280 gsm UV-resistant ripstop |
| Access | 3-point access |
| Lighting | 2 dual-colour red/white LED lights with dedicated switches |
| Power | 2 USB, 4 USB-C and 2 x 12V automotive-style sockets |
| Storage | 12 integrated canvas storage bags |
| Ladder Capacity | 150 kg (331 lb) when deployed |
| Closed Static Roof Load | 200 kg (441 lb) |
| Closed Dynamic Roof Load | 50 kg (110 lb) |
| Open Static Roof Load | 30 kg (66 lb) |
| Recommended Mounting | 3 x 1450 mm Alu-Cab load bars, where appropriate |
| Orientation | Available in left- or right-hand opening configurations |
| Product SKU | RT-4S-B |
Built for Adventure. Look After It Between Trips.
Allow the tent and canvas to dry fully before extended storage, keep tracks and moving components clean, and periodically inspect mounting hardware and load-bar connections. Following Alu-Cab's care and maintenance recommendations will help protect the tent through years of travel.
RT-4S Questions
How many people can the Alu-Cab RT-4S sleep?
The RT-4S is designed as a four-person rooftop tent. Its 2235 x 2050 mm sleeping platform provides more than 4.5 m² of sleeping space.
How large is the RT-4S when open?
The RT-4S measures approximately 2400 x 2183 mm (94 1/2 x 85 15/16 in) when fully deployed.
How much does the RT-4S weigh?
Approximate weight is 127 kg (280 lb) including the mattress and ladder, or approximately 118 kg (260 lb) without them.
Can bedding remain inside when the RT-4S is closed?
Light bedding can be stored toward the rear of the tent when closing it. The amount that can remain inside will depend on the thickness and placement of the bedding.
Does the RT-4S have power inside?
Yes. The RT-4S includes two USB ports, four USB-C ports, two 12V automotive-style sockets and integrated dual-colour LED lighting. It is also solar-ready.
Can a heater be connected to the RT-4S?
Yes. The RT-4S includes a dedicated heater vent that can be used with a compatible external heater system.
Can the RT-4S open on either side of the vehicle?
The RT-4S is available in left- and right-hand opening configurations. Confirm the appropriate orientation for your vehicle and camp setup before ordering.
Will the RT-4S fit my vehicle?
Fitment depends on the vehicle, roof or canopy structure, mounting system and rated load capacity. Because of the RT-4S's size and weight, professional fitment assessment is strongly recommended.
Why Buy Your RT-4S From Cap-it?
Cap-it is Alu-Cab's exclusive Canadian distributor, supporting the brand across Canada with Canadian inventory, experienced retail locations and professional installation.
More importantly, we understand what the rooftop tent sits on. From truck canopies and roof systems to awnings, power, heating and complete vehicle builds, Cap-it can help make sure the entire setup works together.
One tent. One vehicle. Room for the whole crew.