Cut to the floor.
Square 280 × 280 cm (110.2 × 110.2 in) — no overhang, no folds bunching at the corners.
BRAND:
Monterra
Monterra Cubex 2.8 Groundsheet
SHIPS FROM KOREA · Cut-off today
Reserve today to make our June 30 vessel
Ready for pickup / ship-out from late July
Korea-direct · duty-free · full manufacturer warranty
. Free local shipping on orders over USD $300
Reserve today to make our June 30 vessel
Ready for pickup / ship-out from late July
Korea-direct · duty-free · full manufacturer warranty
. Free local shipping on orders over USD $300
Monterra Cubex 2.8 Groundsheet
Prix de vente$119.00 USD
SHIPS FROM KOREA · Cut-off today
Reserve today to make our June 30 vessel
Ready for pickup / ship-out from late July
Korea-direct · duty-free · full manufacturer warranty
. Free local shipping on orders over USD $300
Reserve today to make our June 30 vessel
Ready for pickup / ship-out from late July
Korea-direct · duty-free · full manufacturer warranty
. Free local shipping on orders over USD $300
WHY THIS DESIGN
Built for one tent. Three things to notice.
Sealed against the ground.
150D polyester Oxford with PU coating — 2,000 mm hydrostatic head blocks ground moisture.
Folds into a pouch.
About 1.2 kg (2.6 lb) packed — slots beside the Cubex 2.8 tent bag without growing the load.
SPECIFICATIONS
All the numbers.
FOOTPRINT
280 × 280 cm
110.2 × 110.2 in
WEIGHT
~1.2 kg
~2.6 lb
WATERPROOF
2,000 mm
hydrostatic head
FABRIC
150D
polyester Oxford
- BRAND
- Monterra
- FITS
- Cubex 2.8 Air Shelter (CBB55 series)
- FOOTPRINT
- 280 × 280 cm / 110.2 × 110.2 in (square)
- WEIGHT
- ~1.2 kg / ~2.6 lb
- MAIN FABRIC
- 150D polyester Oxford
- COATING
- PU (polyurethane), inside face
- WATERPROOF RATING
- 2,000 mm hydrostatic head
- SURFACE FINISH
- W/R (water-repellent)
- COLOR
- Void Midnight (F3M)
- INCLUDES
- Groundsheet × 1, carry pouch × 1
What you get.
Included
- Cubex 2.8 Groundsheet (280 × 280 cm)
- Carry pouch
Not included
- Cubex 2.8 Air Shelter
- Stakes or pegs
- Inner tent
FREQUENTLY ASKED
Questions, answered.
Does this fit any other Monterra tent?
It is sized specifically for the Cubex 2.8 Air Shelter — 280 × 280 cm square. Other tents with the same floor dimension would fit, but no other tent in our catalogue uses this footprint.
Can I use it without the tent above?
It is designed as a tent footprint, not a stand-alone ground cover. The W/R surface and 2,000 mm coating handle ground contact, not direct rain or UV for long periods.
Will it protect the tent floor from sharp ground?
It adds a wear-and-puncture layer between the tent floor and the ground. For rocky or stony sites, also clear large debris before pitching — no groundsheet stops a sharp rock under load.
How do I clean and store it?
Wipe with a damp cloth, air-dry fully before folding. Storing it damp will mildew the PU coating. Fold into the included pouch when dry.
Is it the same colour as my tent?
This page is the Void Midnight (F3M) variant — matched to the Cubex 2.8 Void Midnight body. Other colour variants ship separately when the matching tent is in production.
FROM THE CURATOR
Why we carry it.
"We stock the dedicated groundsheet for every air shelter we carry because the math is straightforward — replacing a Cubex 2.8 floor is a multi-hundred-dollar repair, and the groundsheet that prevents it weighs 1.2 kg and rolls into a pouch. We buy it for our own tents."
Kevin G.·Founder · BigTent Outdoors
BUILT TO GO TOGETHER
Pair with these.
SHIPPING
Shipping & timing.
Three ways to get it.
Express shipping
Air freight + ground
Recommended if you have a specific trip coming up and need it faster. Cost is calculated by package weight.
2-3 weeks
Standard shipping
Ocean freight + ground
Lower cost. Best when you're not in a rush. All duties included, no surprises at delivery.
5-8 weeks
Local shipping
Ground
Ships from our BC warehouse, Canada — already in North America, so there's no overseas leg and no import wait. Orders within North America arrive with no added duties or customs fees. For destinations outside North America, the recipient is responsible for any duties or customs charges on arrival.
3–7 business days