Meet the Alu-Cab RT-4S

Our biggest rooftop tent yet—designed for families, adventurers, and anyone who wants to stretch out in elevated comfort.

The all-new Alu-Cab RT-4S is a rugged, fully-featured hard shell rooftop tent with enough space to sleep four. With a massive sleeping footprint of 88” x 81” (2,235mm x 2,050mm), this is the most spacious hardshell RTT on the market—ready for overlanding, family camping, and off-grid escapes. A true flagship in the Alu-Cab lineup.

Mountable to vehicles with adequate roof space and load-bearing capability, the RT-4S opens to either the driver’s or passenger’s side and features a built-in telescopic ladder, air/heater ports, USB and 12V power, climate control, integrated lighting, and even a skylight for stargazing.

Currently available for Pre-Order – the RT-4S is scheduled to ship from Alu-Cab's South African factory in Q4, with ETA in Canada expected late 2025 or early 2026 (subject to transit timelines). Quantities are limited.

RT-4S Features & Benefits

Solar Panel Compatible
No drilling required. Includes Anderson plug for seamless solar integration.

Roof Load Rating

Closed (Static): 440 lbs (200 kg)
Closed (Dynamic): 110 lbs (50 kg)
Open (Static): 66 lbs (30 kg)

Fly Sheet + Ladder Included
No upcharges. Both items come standard with every RT-4S.

Weight

With mattress & ladder: 279 lbs (±127 kg)
Without mattress & ladder: 260 lbs (±118 kg)

Telescopic Ladder
Integrated design supports the fold-out platform and holds up to 330 lbs (150 kg).

Climate Control
Equipped with both air and heater vents for improved airflow and comfort in all seasons.

Air Vent
Reduces condensation and boosts ventilation—great for humid or cold-weather camping.

Mounting Brackets
Mounts securely using:

Alu-Cab Load Bars + Low Profile Feet
Generic Bars + Universal Mounting Brackets
Recommended: 3 bars, each 55” (1400mm) or wider

Canvas & Storage

Double-layer 280gsm UV-resistant ripstop canvas
12 interior storage bags

Power Points

2 x USB Ports
4 x Type-C Ports
2 x 12V Auxiliary Outlets

Bedding Stays Inside
Light bedding can remain stored inside—at the rear—when the tent is closed.

Interior Lighting
Two dual-color (red/white) LED light strips with individual switches.

Skylight
Unzip the ceiling to reveal a clear marine-grade PVC panel for incredible stargazing.

Dimensions

Tent Exterior (Closed): 94.5" x 85.9" (2400mm x 2183mm)
Mattress Size: 88" x 81" (2235mm x 2050mm)
Weight (with mattress & ladder): 279 lbs (127 kg)
Weight (w/o mattress & ladder): 260 lbs (118 kg)

Compatibility

Fits vehicles with large flat roof space and sufficient load capacity
Compatible with both 180° and 270° Shadow Awnings
(Shower cube not recommended when awning is installed due to space constraints)
Recommended Accessories:
- LB-1550 Load Bar
- LB-FEET-STD (Standard 40mm Load Bar Feet)

Video Overview

FAQs

Q: When will the RT-4S be available in Canada?
A: Shipping from South Africa begins Q4 2025. With international transit and customs, we estimate a Canadian ETA of late 2025 or early 2026. Pre-ordering now secures your place in the queue.

Q: Can I store bedding inside when it’s closed?
A: Yes, light bedding can remain inside the tent as long as it’s stored toward the rear.

Q: Is it solar-compatible?
A: Yes, the tent includes an Anderson plug for plug-and-play solar setup. No drilling needed.

Q: Will my existing awning work?
A: 180° and 270° Alu-Cab Shadow Awnings fit. Minimum clearance of ±120mm is required. Shower cube not compatible if an awning is installed.

Q: Are canvas and flysheet replaceable?
A: Yes. Both are fully serviceable and can be replaced if needed.

Q: Is a backrest or drop-down table available?
A: No. The RT-4S is not compatible with the backrest or drop-down table add-ons.

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