11 Person Extended Dome with rainfly on
11 Person Extended Dome hero image with rainfly off to expose mesh ceiling
Aerial view of 11 person extended dome tent. Large mesh paneled ceiling.
Interior image of 11 Person Extended Dome with room divider
Electronic cord port
Image of versitile rainfly rolled half way on right hand side of tent and fully on on left hand side of tent
Image of tent with versitile rainfly rolled on right and left sides while still fully attached to top of tent
Interior image of 11 Person Extended Dome with room divider rolled
Tent light hanging from lantern hook on interior ceiling of tent
Image of a gear pocket inside tent with items placed inside
Image of ground air vents to draw cool air in from the ground
11 Person Extended Dome Tent 18' x 9'
11 Person Extended Dome Tent 18' x 9'

11 Person Extended Dome Tent 18' x 9'

Regular price $ 269.99

We've made our most popular extended dome tent, even bigger! Standing at 18' x 9' with a 74" center height, you can spread out in comfort or fit three queen size air mattresses for your friends and family.

This 11 Person Extended Dome Tent features CORE H20 Block Technology- water repellent fabrics with active bead technology for faster water runoff paired with sealed seams on rainfly, doors, and windows. Setup is simple with color-coded fiberglass poles and sleeves. Attach the rainfly fully, or roll the sides to partially expose the mesh roof ceiling for optimal air flow and star gazing. 

The advanced venting system uses the adjustable air intake vent designed to draw in cool air from the ground while the mesh ceiling allows hot air to escape keeping you comfortable all season.

View 11 Person Extended Dome Footprint

Model Number: 40081

18 feet by 9 feet fits 11 campers 74 inch tent center height electrical cord port

Sleeps 11 People

Our 11 Person Extended Dome Tent sleeps up to eleven people or six people and their gear

74 inch Center Height

74 inch center height gives you enough room to walk around and move comfortably in the cabin

Electrical Port

Secure electrical port provides a water resistant way to insert electrical cords from outside the tent into the interior
3 air mattresses h2o block Vents

Fits 3 Air Beds

With plenty of room for three air mattresses or 11 Core® sleeping bags you'll be sleeping in comfort

H2O Block Fabric

All Core® tents are equipped with water resistant PU coated fabric and taped seams to help keep moisture out

Adjustable Ventilation

With adjustable ventilation on each side of the tent you can let hot air out and cool air in on those warm summer nights

Color Coded Setup

Coordinating color coded poles and sleeves make setting up your tent a breeze

Room Divider

Removable room divider included to create a 2-room tent, allowing you to create your ideal space

Storage Pockets

Strategically placed gear pockets are placed throughout the tent to keep your belongings handy and organized

 Floor Size

18ft x 9ft

Center Height

74 in (6ft)

Tent Stakes

(23) Steel 7in Stakes

Pole Type

Color-coded fiberglass poles

Pack Weight

40 lbs

Pack Size

31 in x 11.25 in x 9.75 in

Tent Fabric

Durable 68D Polyester

Floor Material

Durable 115gsm P.E.
Prop 65 Warning WARNING: This product can expose you to chemicals including Tris (2-chloroethyl) phosphate (TCEP), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov

Free Shipping on Domestic Orders Over $50
  • We provide free ground shipping & handling on website orders within the lower 48 contiguous United States on purchases of $50 dollars or more.
  • For purchases under $49.99, a flat rate of $4.99 will be charged.
  • Please contact customer service (888-775-5628) regarding shipping to Alaska, Hawaii or Puerto Rico.  Delivery is available to AK, HI and PR.  However, an additional shipping fee will apply.  Additional transit time may be required.
  • We strive to process and ship all orders within 1-2 business days (Monday-Friday). Shipments usually arrive within 4-6 business days after processing within the lower 48 contiguous states.  All shipments are sent via UPS ground service or via USPS.  Tracking information will be sent to you via email after your order is processed. 
  • Customers also have the option of receiving tracking information via SMS text message if they choose to provide their cell phone number at check-out.  This is completely optional and at the customer’s discretion.  We will never send anything to you other than order tracking. Standard text message rates may apply.
  • At this time, we are unable to send deliveries to APO addresses or P.O. Boxes.

Expedited Shipping:

  • We also provide expedited shipping options for an additional cost. You can see all of the specific shipping options at checkout.

International Shipping

  • We appreciate interest in international purchases, but at this time, we are unable to ship internationally.  However, we are working on options to expand our product catalog into new countries!
Flat Rate Returns

Making your outdoor experience as easy and enjoyable as possible is our number one priority. If you aren’t happy with your Core® Equipment purchase, returns can be made up to 60 days after the purchase date with all original packaging and contents.  Please contact our customer service team at help@coreequipment.com or 1-888-775-5628 for your return shipping label. A flat rate return fee will be assessed based on the original order value.

  • Orders under $49.99 (before tax) will have a flat $8.00 return fee deducted from your refund.
  • Orders over $50.00 (before tax) will have a flat $15.00 return fee deducted from your refund.
  • Orders of wearable Core Gear will have a flat $3.00 return fee deducted from your refund.

Keep in mind – our customer service is also happy to help you with repair parts and product warranty.

M-F: 8am - 5pm CST
P: 1-888-775-5628
E: help@coreequipment.com