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Need a dependable place to store tractors, vehicles, landscaping equipment, farm supplies, or other large belongings?
The Gold Mountain 20' x 40' x 12' Single Truss Storage Shelter provides a spacious, practical alternative to constructing a traditional permanent storage building.
With 800 square feet of covered footprint, a hot-dip galvanized steel frame, front and rear roll-up doors, and a manufacturer-listed snow-load rating of 42 pounds per square foot, this shelter is designed for substantial outdoor storage needs.
Whether you're protecting agricultural equipment, organizing a contractor's storage area, or creating additional space on your property, this Gold Mountain shelter offers flexibility without the construction process associated with many permanent buildings.
The 20-foot width and 40-foot length provide approximately 800 square feet of covered ground area.
This makes the shelter a useful option for compatible items such as:
Tractors and agricultural equipment
Landscaping and lawn maintenance machinery
Cars, utility vehicles, and trailers
Construction tools and materials
Farm supplies and implements
Seasonal equipment
Outdoor maintenance supplies
Bulk storage materials
The 12-foot overall peak height provides additional vertical clearance toward the center of the structure.
Sidewall height: 6.56 feet.
Before purchasing, verify your equipment's width, height, and turning requirements against the shelter's door openings and usable interior clearances.
This shelter includes zipper-style roll-up doors at both ends.
Each door measures approximately:
14.4 feet wide x 10.8 feet high
The two-ended access arrangement makes it easier to plan equipment movement and storage layouts.
Depending on your site and equipment, you may be able to enter from one end and exit through the other rather than repeatedly backing equipment into position.
The roll-up design also helps keep the entrance area unobstructed when the doors are secured open.
The structure uses a single-truss steel frame made from hot-dip galvanized tubing.
Galvanizing helps protect the steel against corrosion during outdoor exposure.
The manufacturer lists:
16-gauge truss tubing
Nine structural arches
Five-foot arch spacing
Eighteen anchor plates
Pipe-and-ratchet fabric tensioning system
The galvanized frame provides the supporting structure for the shelter's fabric covering.
The supplier estimates a frame lifespan of more than 15 years, depending on installation, maintenance, and environmental conditions. This is a manufacturer estimate, not a guaranteed service life.
The Gold Mountain shelter has the following manufacturer-listed ratings:
Snow load: 42 PSF
Wind load: 50 MPH
These figures are important considerations when comparing large outdoor storage shelters.
The peaked roof design is intended to help shed precipitation, while the tensioning system helps keep the fabric properly secured.
Actual performance depends on correct installation, anchoring, site conditions, maintenance, and compliance with the manufacturer's instructions.
Local snow and wind requirements can exceed the listed ratings. Customers should confirm that this model is appropriate for their installation location.
The manufacturer offers several fabric options to accommodate different budgets and storage needs.
11 oz/yd² class (300 gsm) PE tarpaulin
An economical covering option for customers seeking a more budget-conscious storage solution.
16 oz/yd² class (450 gsm) PVC
23 oz/yd² class (650 gsm) PVC
26 oz/yd² class (750 gsm) PVC
32 oz/yd² class (900 gsm) PVC
PVC options provide a heavier covering choice for customers seeking additional fabric durability.
The manufacturer estimates a fabric lifespan of approximately 7–10 years, depending on fabric selection and environmental conditions.
Important: Fabric selection affects the product configuration and warranty. Confirm the fabric included in your order before purchasing.
The supplier describes the shelter's PVC covering as allowing natural light into the structure.
Depending on the selected fabric and its color, this can help improve daytime visibility inside the shelter.
The amount of transmitted light will vary by covering type.
The shelter uses a pipe-and-ratchet tie-down system to help maintain fabric tension.
Proper tension is important because loose fabric can collect precipitation and experience unnecessary movement during windy conditions.
The manufacturer recommends inspecting and retightening the fabric after installation and periodically thereafter.
Seasonal temperature changes can cause the covering to loosen, making routine adjustment especially important.
The shelter's large footprint and accessible layout make it useful for a variety of applications, including:
Farm equipment storage
Tractor and implement protection
Contractor equipment storage
Landscaping business operations
Vehicle and trailer storage
Outdoor material storage
Temporary covered work or staging areas
Any use involving public gatherings, commercial occupancy, or specialized operations should be reviewed against applicable local requirements.
Gold Mountain single-truss storage shelter
20' wide x 40' long x 12' high
800 sq. ft. covered footprint
Hot-dip galvanized steel frame
16-gauge truss tubing
Nine arches spaced five feet apart
Front and rear zipper-style roll-up doors
14.4' W x 10.8' H door openings, manufacturer-listed
6.56-foot sidewall height
Manufacturer-listed 42 PSF snow-load rating
Manufacturer-listed 50 MPH wind-load rating
Pipe-and-ratchet fabric tensioning
PE and PVC covering options
Eighteen anchor plates
Estimated two-day DIY assembly with four people
Forklift or equivalent required for unloading
| Specification | Details |
|---|---|
| Brand | Gold Mountain |
| Product Type | Single Truss Storage Shelter |
| Model | S204012 |
| Overall Dimensions | 20' W x 40' L x 12' H |
| Covered Footprint | 800 sq. ft. |
| Sidewall Height | 6.56 ft |
| Front Door Size | 14.4' W x 10.8' H |
| Rear Door Size | 14.4' W x 10.8' H |
| Door Type | Zipper Roll-Up |
| Frame Type | Single Truss |
| Frame Material | Hot-Dip Galvanized Steel |
| Truss Tubing | 16 Gauge |
| Arch Tubing | 70 x 42 x 1.5 mm |
| Purlin Tubing | 40 x 1.2 mm |
| Arch Spacing | 5 ft |
| Number of Arches | 9 |
| Anchor Plates | 18 |
| Fabric Tensioning | Pipe and Ratchet Tie-Down |
| Fabric Options | PE or PVC |
| Fabric Color | White with Green or Red Edge, Subject to Availability |
| Temperature Resistance | -22°F to 158°F, Manufacturer-Listed |
| Snow-Load Rating | 42 PSF, Manufacturer-Listed |
| Wind-Load Rating | 50 MPH, Manufacturer-Listed |
| Estimated Fabric Lifespan | 7–10 Years, Depending on Conditions |
| Estimated Frame Lifespan | 15+ Years, Manufacturer Estimate |
| PE Fabric Warranty | 2 Years, Manufacturer-Listed |
| PVC Fabric Warranty | 8 Years, Manufacturer-Listed |
| Estimated Assembly | 4 People / 2 Days |
| Shipping Dimensions | 85" x 30" x 26" |
| Shipping Weight | 2,310 lbs |
| Unloading | Forklift or Equivalent Required |
| Country of Origin | China |
| Fabric | Manufacturer-Listed Weight |
|---|---|
| Economical PE | 300 gsm |
| Heavy-Duty PVC | 450 gsm |
| Heavy-Duty PVC | 650 gsm |
| Heavy-Duty PVC | 750 gsm |
| Heavy-Duty PVC | 900 gsm |
Please contact Home Outpost Supply to confirm available fabric configurations, pricing, and ordering options.
The supplier's detailed specifications list the following fabric warranties:
PE fabric: 2 years
PVC fabric: 8 years
Warranty coverage, exclusions, and eligibility are subject to the manufacturer's written terms.
The supplier's introductory description also mentions a three-year warranty, which differs from the fabric-specific warranty information. Please confirm the applicable coverage for your selected configuration before ordering.
This is a large freight shipment.
Shipping package dimensions: 85" x 30" x 26"
Shipping weight: 2,310 lbs
The shipment may arrive on a box truck or flatbed truck, depending on transportation arrangements.
A forklift or equivalent unloading equipment is required.
Customers should arrange suitable equipment and a safe unloading location before delivery.
Confirm that your driveway or property can accommodate the delivery vehicle and unloading process.
The manufacturer estimates approximately two days for assembly with four people.
Installation time can vary depending on site preparation, experience, equipment, and weather conditions.
The manufacturer notes that stake pegs have been replaced by expansion bolts.
Customers requiring stake pegs should contact customer service before ordering.
The correct anchoring system depends on the installation surface and the manufacturer's requirements.
Prepare a level, stable installation area and verify that the chosen anchoring method is appropriate for your site.
Local permits or approvals may be required, including for temporary installations.
The manufacturer recommends maintaining proper roof fabric tension and retightening the covering after initial installation.
Temperature changes can affect fabric tension, so inspect the shelter periodically, especially before severe weather.
Download the Official 20' x 40' Storage Shelter Installation Manual
Read the Manufacturer's Storage Shelter Assembly Guide
The Gold Mountain 20' x 40' x 12' Single Truss Storage Shelter offers a spacious and versatile solution for protecting valuable equipment and organizing your property.
With 800 square feet of covered space, front and rear access, galvanized steel construction, and multiple fabric options, it's designed to accommodate a wide range of outdoor storage needs.
Protect your equipment. Expand your storage space. Keep your property working for you.
Customer installations & verified reviews
See how Home Outpost Supply customers are putting serious storage, shelter, outdoor cooking, and garage-lift solutions to work at home.
“It arrived fully assembled, and the 1,653 lb desktop capacity with solid-steel construction feels ready for serious work. The curbside liftgate made delivery smooth from start to finish.”
Homeowner install · 10ft workbench storage cabinet
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“The black marble countertop looks sharp, the caster wheels make positioning easy, and the plug-and-play LPG setup meant we could get the kitchen ready without a complicated project.”
Homeowner install · 104 inch outdoor kitchen
“The push-button remote makes raising our storage straightforward. Getting those bins overhead reclaimed valuable garage floor space and made room for the things we use every day.”
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