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null×null Garage + Office | Steel and Stud — From $1,850
20×40 Garage + Office
In stock · ships 3–5 wk
Starting from$2,100$1,850SAVE $250
or $39/mo · $0 down · no credit check
HomeMetal Buildings20×40Garage + Office
★★★★★4.8(verified buyers)✓ Verified Buyers

null×null Garage + Office, finished workspace at the back.

Two parking bays up front with a 20×16 finished office at the back, drywalled, climate-pre-wired, ready for a desk and a window AC. Free delivery and install.

You're viewing:Garage + Office·Size20×40·Slate Gray
Starting from your selected configuration$1,850$2,100Save $250
or as low as $39/mo · 0% APR · No credit RTO
ℹ️This is an estimate. Final pricing is locked after our sales team reviews your complete requirements (site access, ground type, county-specific certifications, optional upgrades). You'll receive a written all-in quote within one business day of your request — no surprises, no hidden fees.
📐 Size footprint dimensionsSelected: 20×40
null×null
this size
$1,850
📏 Side wall height interior headroomSelected: 9′
7'
8'
9'
10' +$340
12' +$640
14' +$1180
🎨 Roof & trim color applied to building aboveSelected: Slate Gray
Slate Gray
🔧 Customize your build 9 options affect your price
🏗️
Roof Stylevertical sheds snow/leaves naturally
🚪
Roll-Up Doorsfront-mounted garage doors
🪟
Windowsnatural light + ventilation
🚶
Walk-In Doorside entry with deadbolt
🌡️
Insulation Packageyear-round comfort & energy savings
🔩
Frame Gaugestructural steel thickness
📋
Sheeting Gaugeroof + side panel thickness
Anchoring Typefoundation attachment method
Electrical Pre-Wireconduit run for licensed electrician
Customizations selected:
Customization subtotal:+$485
  • 0 sq ft total · 0 sq ft garage
  • 0 sq ft finished office
  • Drywall ready 5/8 Type-X
  • HVAC rough-in mini-split
  • 200A entrance panel
  • 2 office windows 36×48
  • R-19 ceiling insulation
  • Garage door + walk-in
🚚
FREE delivery & installation in all 48 states. Concrete, asphalt, or compacted gravel.
SKU:SS-SHELTERLOGIC-12X20-REPLACEMENT-OFFICE_RETAIL_SPBuilt:1,847+Since: 2002Made in: 🇺🇸 USA
🛡️
A+
BBB Accredited
15,000+
buildings installed
20+ years
In Business
🏠
15,000+
Buildings
🇺🇸
48
States Served
We've provided builds for
FordAppleDiscovery ChannelU.S. ArmyGM
SPATIAL LAYOUT

See how 800 sq ft fits your garage + office combo.

null feet wide × null feet long. Front parking bay + rear null×16 finished office partition.

Bay 1Bay 2OFFICEnull′ × null′ · 0 sq ft

Drywall-ready office at rear.

Stud-framed office partition + drywall pre-cut + HVAC mini-split rough-in + 200A entrance. Move-in-ready with finish trades in 2-3 weeks.

💡 Pro tip:The office bay can be permitted as commercial accessory OR finished to residential code for an in-law suite. Stamped drawings cover both.
🎨 FREE 3D BUILDER

Build your 20×40 Garage + Office in 3D.

Design your building yourself in our free Sensei3D Designer — drag doors and windows where you want them, swap roof + trim colors, and see your spec from every angle. Save your design and email it to yourself for later.

  • Drag-and-drop doors, windows, walk-ins anywhere on the building
  • 16 colors applied live to roof, walls, and trim — mix & match
  • Interior + exterior views of your spec, with measurements
  • Save your design and share it with your contractor or family
  • Auto-syncs to quote — what you build is what we price
✓ No login required✓ Works on phone & desktop✓ Used by 38,000+ buyers
Sensei3D Preview
LIVE 3D · DRAG TO ROTATE
— or —
📐 Use the Cold-Form Designer (engineer-grade specs)
WHAT'S INCLUDED

Everything in your Garage + Office.

All variants ship with free delivery, installation, drawings, 20-year warranty.

🏗️
0 sq ft enclosed
Fully-enclosed null×null vertical-roof structure.
🚪
Roll-up + walk-in doors
Standard configuration door package.
🔩
14-gauge steel frame
American-rolled galvanized tubing.
🎨
1 standard color
Pick from 16 factory-baked finishes.
TECHNICAL SPECIFICATIONS

Garage + Office spec sheet.

Widthnull'
Lengthnull' + 6" overhang
Side height9' standard
Floor space0 sq ft
Doors1 × 9×8 roll-up
Walk-inOptional (+$345)
Windows2 × 36×48 office
Windup to 180 mph
Snowup to 65 psf
RoofVertical 3:12
Frame14 ga (12 ga upgrade)
Sheeting29 ga (26 ga upgrade)
AnchoringConcrete · Asphalt · Ground
Lead time3 – 5 weeks
Office partition20×16 stud-framed
Drywall5/8 Type-X pre-cut
Electrical200A entrance + sub
HVACMini-split rough-in
USE CASE EXAMPLES

How real buyers use Garage + Office.

CONTRACTOR HQTrades small-business HQ
Trades small-business HQ
Truck + tools in the garage, paperwork + client meetings in the office.
REMOTE WORKDetached home office
Detached home office
Quiet 20×16 office with its own entrance and window AC, separate from the house.
RETAIL OUTPOSTPickup-window retail
Pickup-window retail
Inventory storage in the garage, customer-facing window + counter in the office bay.
FULL PRODUCT DETAILS

null×null Garage + Office — what makes it different.

0sq ft
Floor Space
180mph
Wind Rated
65psf
Snow Load
20yr
Rust Warranty
40yr
Paint Warranty
$39/mo
From RTO
🏗️

Engineered for your county

Every null×null garage + office is fabricated from American-rolled galvanized steel and engineered against the exact wind and snow loads your jurisdiction requires.

  • Standard: 140 mph wind / 35 psf snow
  • 12-ga upgrade: 180 mph / 65 psf
  • Permit drawings stamped and emailed free
🔩

Construction details

The same materials commercial fabricators use — not residential-grade. Hot-dip galvanized fasteners, factory-baked siliconized polyester paint, Hilti-grade anchors.

  • Frame: 14-ga (12-ga upgrade) galvanized tubing
  • Panels: 29-ga G-90 (26-ga upgrade)
  • Fasteners: #14 self-drilling with EPDM washer
🚚

Free delivery & install — really free

Regional-route delivery plus 1–2 day on-site installation by a certified crew, bundled into your headline price. No hidden unloading fees, fuel surcharges, or site-prep charges.

  • $0 deposit · pay only after walkthrough sign-off
  • 3–5 week lead time on regional routes
  • All 48 states · rush option available
🛡️

Warranty & lifespan

Engineered for a 50-year service life with industry-leading warranties on every wear surface.

  • 20-yr rust-through warranty on frame & panels
  • 40-yr paint warranty against fading + chalking
  • 1-yr craftsmanship on installation
💳

$0-down financing

Three financing paths to fit any credit situation. The rent-to-own option requires no credit pull at all — fastest path to a closed deal.

  • RTO: $39/mo, no credit check, 36–60 mo
  • Financing: 0% promo APR · 84 mo term
  • Cash discount: 4% on $10K+ orders

Why null×null?

0 sq ft sits in the sweet spot for residential and light-commercial — fits standard quarter-acre setbacks, comfortably below the 1,000 sq ft municipal threshold that triggers extra inspections.

  • null′ × null′ footprint with 0 sq ft interior
  • Permit-friendly in 96% of US counties
  • Resale ROI $0–$0 added home value
PEOPLE ALSO ASK

Common questions from Garage + Office shoppers.

The questions our team hears every week. Click any to expand the short answer.

How thick is the steel on a Steel and Stud null×null metal building?

Standard frame: 14-gauge (1.5 mm) galvanized tubing. Optional 12-gauge upgrade (2.5 mm) for high-wind/snow zones. Roof and wall sheeting ships 29-gauge standard, 26-gauge upgrade available on order.

Does Steel and Stud deliver and install in my state?

Yes — free delivery and free installation in all 48 continental states, performed by certified Steel and Stud crews. Hawaii and Alaska use custom freight quotes; call 1-877-275-7048 for either.

What's the typical lead time for a null×null building?

Standard: 3–5 weeks from order confirmation to install completion. Fabrication runs the first 2–3 weeks at our US plant; regional delivery and 1-2 day install close it out. Rush builds available for $345.

Can I finance a Steel and Stud building without a credit check?

Yes — Steel and Stud's rent-to-own partner does not pull credit. Approvals typically run 8 minutes with proof of income and first month's payment. 36–60 month terms, no early-payoff penalty.

What's covered under the 20-year warranty?

Steel and Stud's 20-year rust-through warranty covers the galvanized frame against perforation, plus a 20-year paint-finish warranty against fade and chalk. Workmanship on the install is warrantied for 1 year. Warranty transfers to the next owner on resale.

CUSTOMER REVIEWS

What real null×null Garage + Office buyers say.

No reviews yet for the null×null Garage + Office

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HAVE A QUESTION?

Talk to a real metal-building specialist.

Our team has installed 15,000+ buildings. We answer technical, permit, and financing questions every day — usually in under 8 minutes.

Complete your Garage + Office · Save 10% bundled

These add-ons ship and install with the same crew.

Browse all 28 add-ons →
Bundle & Save
🏗️
Concrete Pad Pour
1×1×4″ slab to engineered spec.
Most Added
🌡
R-19 Insulation Package
Roof & wall batt, vinyl-faced.
$1,795+ Add
💧
Gutter & Downspout Kit
Seamless aluminum, color-matched.
$485+ Add
200-Amp Sub-Panel Pre-Wire
Conduit + sub-panel housing.
$695+ Add
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FREQUENTLY ASKED

Garage + Office questions, answered.

What's included in the $1,850 office base?

Office spec adds a stud-framed 20×16 office partition wall, 5/8 Type-X drywall pre-cut, R-19 ceiling insulation, an HVAC rough-in for a mini-split, a 200A electrical entrance, and two 36×48 office windows.

Is the office finishable to residential code?

As-built it meets commercial accessory standards. To finish to full residential code (continuous insulation + interior trim + flooring + bathroom), plan $12,000–$22,000 in finish-out trades.

Do I need a separate permit?

One accessory building permit covers the structure. Mixed-use (garage + office) needs an occupancy classification check with your county. We provide stamped drawings for both classifications.

Can I add a bathroom?

Yes, the 20×16 office is plumbing-stub-ready (drain + supply roughed in to one wall). A 3-piece bath finish-out runs $6,000–$11,000 separately.

How long until I can move in?

Building goes up in 1 to 2 days. Drywall finish + paint + flooring + HVAC install adds 2 to 3 weeks of trades work for a basic move-in-ready office.

Ready to build?

Your Garage + Office quote takes one minute.

Tell us your zip and the options you want. We'll send back a same-day, all-in price.

✓ 15,000+ buildings installed✓ BBB A+✓ 24 years✓ $0 deposit · pay after install
FREE • NO-OBLIGATION QUOTE

Get Your Free Custom Building Quote

Tell us what you need and a building specialist will send your custom pricing — usually within 1 business day. No payment required.

✓ Free delivery & install✓ 20-year warranty✓ Engineer-certified

🔒 A specialist calls within 1 business day. We never share your details.

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