SKU: 88725507384

W20'xL40'xH12' Single Truss Storage Shelter

Sale price$1761.72 Regular price$1957.47
Save 10%

Pay in installments of $489.37 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 6 - Sep 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

W20'xL40'xH12' Single Truss Storage ShelterThe Gold Mountain Storage Shelter W20xL40xH12 Single Truss offers unlimited protection from storms, snow, rain, and sun. Ideal for vehicles, materials, tools, and events, it includes a 3 year warranty for peace of mind. The peak design aids snow removal, and the durable PVC fabric outlasts PE, providing superior weather resistance. Perfect for various storage needs, this shelter ensures reliable protection and longevity. Please Note: Stake pegs are

The Gold Mountain Storage Shelter W20’xL40’xH12’ - Single Truss offers unlimited protection from storms, snow, rain, and sun. Ideal for vehicles, materials, tools, and events, it includes a 3-year warranty for peace of mind. The peak design aids snow removal, and the durable PVC fabric outlasts PE, providing superior weather resistance. Perfect for various storage needs, this shelter ensures reliable protection and longevity.

Please Note: Stake pegs are replaced by expansion bolts. If you need stake pegs, you can contact customer service to place an order.

How to build a Storage Shelter?

Installation Manual

Specifications

Description Specifications
Dimensions (WxLxH) 20'x40'x12'
Side-wall Height 6.56 ft
Door size (WxH) (Front & Rear) 14.4'x10.8'
Door Type Zipper Rollup Door
Frame Single Truss Galvanized Tube
Steel Frame Hot Dip Galvanized Steel
Truss tube 16 Gauge
Tarp Fabric PE or PVC
Tarp Color (customizable) White with Green/Red Edge
Temperature resistance -22 - +158 °F
Arch Ø Ф 70x42x1.5mm
Purlin Ø  Φ 40x1.2mm
Arch Spacing 5 ft
Number of Arch 9
Number of Anchor plates 18
Tension System Pipe and Ratchet Tie-Down System
Average assembly time for DIY with 4 persons 2 Days
Snow Load 42 lbs/ft²
Wind Load 50 miles/h
Tarp lifespan 7-10 years, depending on the type of fabric and environmental conditions.

Frame lifespan

15+ Years

Warranty

- PE: 2 Years Warranty.
- PVC: 8 Years Warranty.

Fabric (Optional)

  • Economical - 11oz/m²(300 gsm) PE Tarpaulin Fabric
  • Heavy Duty - 16oz/m²(450 gsm) PVC Tarpaulin Fabric
  • Heavy Duty - 23oz/m²(650 gsm) PVC Tarpaulin Fabric
  • Heavy Duty - 26oz/m²(750 gsm) PVC Tarpaulin Fabric
  • Heavy Duty - 32oz/m²(900 gsm) PVC Tarpaulin Fabric
  • Please contact us to order.
Country of Origin China

Installation Tips

1. That depends on the product and the local regulations. A permit is usually not necessary for temporary placement. For (semi) permanent placements, it’s best to contact your municipality.

2. It’s necessary to tighten the roof fabric enough to avoid “hammocks” on the roof and also re-tighten once or twice again after a few months of use. This is important when assembly in cold weather (autumn and winter) because the fabric is stiff then and when we get the sun and warm weather afterward it will make the fabric “slack” again and need to be re-tightened before next winter.

Features

  • No building permits required*.
  • Ideal for agriculture, farms, events, film sets, garages, and automobile storage.
  • The galvanized steel structure is built to last, which is resistant to rusting and corrosion.
  • Weatherproof (snow, storm, wind, water), UV resistance, and fire retardant.
  • The PVC provides bright natural light, which helps to save on utility bills.
  • Easy entry and exit with double doors placed at both ends.
  • The quality of the structure is designed by experienced engineers and advanced technology.
  • Easy to install or dismantle and transport to the new locations.

Package Size

  • LxWxH (inch): 85x30x26
  • Weight (lb): 2310
  • A forklift or equivalent is required for unloading.

Delivery and Unloading

  • The product will be either loaded onto a box or flatbed truck, depending on its size.
  • A forklift or equivalent is required for unloading.

s204012, 20x40, 20x40x12, Single Truss Storage Shelter, fallout shelter storage room, Gold Mountain Storage shelter, Gold Mountain dome storage shelter, outdoor storage shelter, Storage Shelter

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88725507384

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 8 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
John S.
Carnegie, US
★★★★★ 5
Makes my camp mattress so much better.
Color: Black, Size: Full
I'm in a small motorhome and this has helped my sleep quality a ton. I got rid of my big mattress because the 2 camp mattresses I have are smaller in size, but a bit dense than the mattress I had. Uncomfortable for anyone that sleeps on them for long periods and when I come from biking or hiking the pain was making it hard to sleep. These have improved my sleep quality immensely. It also, to my surprise fit well, the cushions are only a few inches. These are up to 18, but the edge is nearly a perfect fit at the start. The straps keep it from moving. The length and width using 2 of the bed rolls is nearly perfect. On mattress the deeper part of the pocket, would fit perfectly. The quality feels great, lightweight and washable, this is one of those items I wouldn't have likely ordered, but trying it is near priceless for my usage. Couldn't imagine how good it must be on a bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
R
Verified Purchase
Rabin Thapa Magar
Draper, US
★★★★★ 5
Ultra-Light, Cooling & Comfortable – Great for Night Sweats!
Team Name: Cooling Comforter, Size: Full/Queen(90"x90"), Color: 01dark Grey
The DOWNCOOL Cooling Comforter Set (Queen Size 90”×90”) is a fantastic choice if you tend to sleep hot. The comforter uses advanced cooling fabric technology that absorbs body heat and helps reduce skin temperature by a few degrees, making it ideal for summer or warm climates. The material feels cool to the touch, lightweight, and breathable, so you stay comfortable without feeling heavy or sweaty. It also features moisture-wicking and quick-dry properties, which help keep the bed fresh throughout the night. The set includes 3 pieces (comforter + 2 cooling envelope pillowcases), and the pillowcases add an extra cooling effect around your head and neck. The fabric is soft and skin-friendly (often OEKO-TEX certified), making it safe for everyday use. It’s also machine washable and durable, maintaining its cooling performance even after multiple washes, which makes it practical for long-term use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
J
Verified Purchase
Justin
Charlottesville, US
★★★★★ 5
Cool and comfy
Team Name: Cooling Comforter, Size: King(104"x90"), Color: 01grey
So comfy, lightweight, soft and yes, cool to the touch. Doesn’t stay cool though for long exposure but great for sleeping with animals or others.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 2, 2026
A
Verified Purchase
April Molinar
New York, US
★★★★★ 5
Soooooo comfy!!!
Team Name: Cooling Comforter, Size: King(104"x90"), Color: 01cream White
THE best cooling comforter Ive purchased! It’s so soft and smooth and has just enough weight to it for comfort but still light enough. I’m def buying more!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
L
Verified Purchase
Lyss
Alexandria, US
★★★★★ 5
Coolest sleep ever
Team Name: Cooling Comforter, Size: King(104"x90"), Color: 01grey
This thing is awesome, I can wrap my whole body up and still have plenty of comforter left. Keeps me nice and cool no more night sweats. Perfect thickness and you cant beat the price. Absolutely love the color fit perfectly with my room and colors already.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026

recommand products