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Survive-A-Storm

Survive-A-Storm Extreme Above Ground Tornado Shelter

SKU EX0404
$5,300.00
$5,300.00

Sales tax may apply depending on your state. Contact us for an exact price before ordering.

Request a Quote Call for Price: (888) 287-1017

Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Northgrid Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@northgridsupply.com and we’ll look into it immediately.

6. Restocking Fees

Change-of-mind returns are subject to a 25% restocking fee. Damaged, defective, or incorrect items are not charged a restocking fee.

The Extreme is an above-ground storm shelter constructed from 1/4-inch steel with heavy 5.4-pound channel reinforcements. Designed for installation on a suitable concrete pad, it can be placed in a yard, under a carport, in a garage, or another appropriate location. Available in multiple sizes, the shelter provides different occupancy capacities while maintaining core features such as internal locking mechanisms, a removable escape hatch, conduit connections, locking bench storage, and a triple-locking single-lever door latch. The 4x4 configuration uses an out-swing door, while the 6x4, 6x6, and 6x8 configurations use an in-swing door. Professional installation by an NSSA-accredited installer is recommended and is required to certify the shelter with an NSSA Type 4 Seal.

Extreme 4x4

  • Size: 4 ft. x 4 ft.
  • Dimensions: 48 in. W x 48 in. L x 78 in. H
  • Weight: 2,000 (unit not specified)
  • Occupancy: 5 people
  • Steel Thickness: 1/4 in.
  • Channel Reinforcements: 5.4 lb
  • Door: Out-swing
  • Anchor Quantity: 16
  • Escape Hatch: Included
  • Conduit Connection: Electrical, coax, Cat-5

Extreme 6x4

  • Size: 6 ft. x 4 ft.
  • Dimensions: 72 in. W x 48 in. L x 78 in. H
  • Weight: 2,300 (unit not specified)
  • Occupancy: 8 people
  • Steel Thickness: 1/4 in.
  • Channel Reinforcements: 5.4 lb
  • Door: In-swing
  • Anchor Quantity: 20
  • Escape Hatch: Included
  • Conduit Connection: Electrical, coax, Cat-5

Extreme 6x6

  • Size: 6 ft. x 6 ft.
  • Dimensions: 72 in. W x 72 in. L x 78 in. H
  • Weight: 2,600 (unit not specified)
  • Occupancy: 12 people
  • Steel Thickness: 1/4 in.
  • Channel Reinforcements: 5.4 lb
  • Door: In-swing
  • Anchor Quantity: 24
  • Escape Hatch: Included
  • Conduit Connection: Electrical, coax, Cat-5

Extreme 6x8

  • Size: 6 ft. x 8 ft.
  • Dimensions: 72 in. W x 96 in. L x 78 in. H
  • Weight: 2,900 (unit not specified)
  • Occupancy: 16 people
  • Steel Thickness: 1/4 in.
  • Channel Reinforcements: 5.4 lb
  • Door: In-swing
  • Anchor Quantity: 28
  • Escape Hatch: Included
  • Conduit Connection: Electrical, coax, Cat-5

  • Heavy-Duty Steel Construction: Constructed from 1/4-inch steel with heavy 5.4-pound channel reinforcements.
  • Internal Locking: Two additional internal locking mechanisms allow the shelter to double as a safe room.
  • Escape Hatch: Features a quick, tool-less removable escape hatch for an additional exit option.
  • Locking Bench Storage: Built-in locking bench provides storage space for valuables and emergency supplies.
  • Conduit Connection: Provides conduit connections for electrical, coax, and Cat-5.
  • Triple-Locking Door Latch: Commercial-grade single-lever handle includes padlock protection.
  • Multiple Installation Locations: Designed for installation on a suitable concrete pad in locations such as a yard, carport, or garage.

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Internal Locking

Two additional internal locking mechanisms to double as a safe room.

Conduit Connection

For electrical, coax, cat-5.

(Not included on 3'x5')

Escape Hatch

Quick, tool-less removal for additional escape options.

(Not included on 3'x5')

Bench Storage

Store valuables, a first aid kit, water and non-perishable food supplies in the locking bench.

Triple-Locking Single-Lever Door Latch

Commercial-grade handle with padlock protection.

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    Total price$31,485.00