12x20 Steel Frame Building Kit | Flat Roof | 240 sq ft Shell
Availability
Next shipment allocation available
Estimated delivery: 2–4 weeks (California)
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12 ft x 20 ft galvanized steel frame structural shell kit. Flat roof. 240 square feet.
Dimensions
- Width: 12 ft (3.66 m)
- Depth: 20 ft (6.10 m)
- Wall height: 9 ft (2.75 m)
- Coverage: 240 sq ft
What's in the box
- Galvanized steel frame
- Roof sheets
- Flashings
- Fixing kit (screws, nuts, bolts, brackets)
- Assembly guide
Specifications
- Material: Galvanized steel
- Roof profile: Flat with drainage slope (upon request)
- Foundation: Requires concrete pads or supports (not included)
- Assembly: 2-3 people recommended
Common uses
- Backyard workshop or studio shell
- Storage building
- Outbuilding structural shell
- Base structure for owner fit-out
Not included
- Concrete slab and foundation
- Wall sheets, cladding, or siding
- Doors, windows, openings
- Insulation, vapor barrier, weather-resistive barrier
- Electrical, plumbing, HVAC, lighting
- Interior finishes
- Building permits, plans, or engineering certifications
Important: This product is a structural frame kit only. It is not supplied as a habitable building, ADU, dwelling, or sleeping unit. Conversion to habitable space requires additional materials, design, engineering, permits, and inspections that are the buyer's responsibility.
Shipping & Delivery
Shipping available across California and the US West Coast. Freight cost based on order size and delivery ZIP code. Typical transit time: 5–8 business days after dispatch.
Returns & Order Changes
Returns accepted within 30 days for unused items in original condition.
To start a return, email: info@teloswarehouse.com with your name and order number.
About Telos Warehouse
Telos Warehouse supplies construction-grade building materials directly to projects and contractors.
We focus on:
- Reliable supply
- Competitive pricing
- Fast fulfillment
Products are sourced directly and distributed without unnecessary markups.
Reviews
Used by Builders & Contractors
Telos products are trusted by trades who build for speed and quality.
The final look turned out to be gorgeous and exactly what we were expecting.
The install was a fast and easy process. Turned out great, matching our home.
Shoutout to Jake for hooking us up on time. I'd give these boys 10 stars if I could.
Alice was very helpful in making sure we received the correct quantity for our feature wall.
Product is all good and our delivery arrived quite quick. Would work with them again.
Ongoing jobs with these guys.
Simple Ordering & Delivery
Order online, confirm delivery, get materials on site.
Product Information Disclaimer
WARNING: Cutting, sanding, or drilling this product can produce dust containing crystalline silica, a chemical known to the State of California to cause cancer. Avoid breathing dust. Use wet cutting methods or approved respiratory protection. www.P65Warnings.ca.gov
Products are supplied as materials or kits only. Suitability for your specific project, including structural, exterior, or interior use, should be confirmed by your installer or project professional prior to installation. This product is supplied as a kit or material and is not provided as an engineered or certified building system. Local codes, permits, and requirements vary by location and are the responsibility of the purchaser. Dimensions, finish, and minor variations may occur between batches. Product specifications are provided as a general guide and may vary slightly. Products are intended for general construction, cladding, or shelter applications. Final application method should be confirmed prior to installation. All orders are shipped via third-party freight carriers. Delivery conditions and access must be suitable for unloading. Any visible damage must be reported at time of delivery with supporting photos.
