Popular Metal Building Sizes With Real Price Bands (18×20 to 50×100)

Quick TL;DR

• Small carports and one-bay garages, 18×20, start around $1.9k – $2.7k for open carports, and about $5k+ for basic enclosed garages, installed.
• Popular shop sizes like 24×30 and 24×40 commonly land $7.6k – $14.5k installed for tubular shells.
• Mid-size garage and larger spans. 30×40 kits often pencil around $24k.
• The classic 40×60 shop: kit bids are often high 20s to low 40s.
• Big footprints like 50×100: many kits price around $75k.

Size by size: what it fits and what folks usually pay

The popular metal building prices below are realistic examples for planning, but your final quote will change based on your location, building options, and local codes.

18×20

• Good for: one car, mower, ATV, small workshop bench.
• Tubular carport, installed: about $1,870 – $2,700.
• Tubular enclosed garage, installed: common entry about $4,900 – $7,000.
• Notes: cheapest way to get covered parking. Enclosing adds wall panels, trim, a door, and wind/ snow certification.

20×20

• Good for: tight two-car, bikes, and shelves.
• Tubular enclosed, installed: often $3.4k – $6.1k for a basic shell, based on current per-sq-ft ranges. Expect more with taller legs and better doors.

20×30

• Good for: two cars with a real work zone, small contractor shop.
• Tubular enclosed, installed: many orders land about $8.5k – $13k, reading across dealer per-sq-ft. and nearby 24×30 comps.

24×30

• Good for: two cars and storage, a hobby shop.
• Tubular enclosed, installed: $7,600 – $10,500.

24×40

• Good for: two cars, tools, and a side bay, or compact agriculture storage.
• Tubular enclosed, installed: about $9,500 – $14,500.
• With lean-to: starting figures climb. One current example shows a 24×40×14 with lean-to starting near $19.9k.

30×40 Metal Buildings

• Good for: the classic home shop. Tools, a compressor, parts racks, and a truck.
• Tubular installed: priced roughly $14k – $22k for base shells.
• I-beam kit: about $24k is common for the shell package.
• Turnkey: about $32.4k – $48k for kit + slab + erection in 2025 guides.

30×50

• Good for: contractor shop, small fleet, woodworking with clear table space.
• Tubular installed: current “starting at” examples around $20.8k, varies by state and options.
• I-beam kit: figure about $22.5k – $30k using the kit cost-per-sq-ft guides.
• Turnkey: about $36k – $64.5k typical guide rail.

30×60

• Good for: equipment bay plus shop, light commercial, farm use.
• I-beam kit: about $27k – $36k.
• Turnkey: about $43k – $77k based on installed per-sq-ft ranges.

40×40

• Good for: a square shop with two big doors and mezzanine potential.
• I-beam kit: about $24k – $32k by kit guides.
• Turnkey: about $38k – $69k by installed per-sq-ft ranges.
• Tubular note: most 40-wide tubular or hybrid frames priced much higher than residential sizes and often cross the $20k mark quickly.

40×60

• Good for: real commercial shop, hay or equipment, multi-bay auto.
• I-beam kit: many quotes fall high 20s to low 40s. One outlet lists $28.8k – $33.6k for materials. A 2025 guide lists about $43.2k for a typical kit.
• Turnkey: about $57.6k – $91.2k is a common national band.

50×80

• Good for: mid-size warehouse, farm equipment, small manufacturer.
• I-beam kit: about $60k – $80k using kit guides at $15-$20 per sq ft.
• Turnkey: about $96k – $172k using installed ranges at $24-$43 per sq ft.

50×100

• Good for: distribution, commercial service bays, indoor courts.
• I-beam kit: many 2025 guides show about $75k.
• Slab only, typical: plan about $30k for a 5,000 sq ft, 4-inch slab at national averages. Some regions report lower, but $30k is a safe plan figure in 2025 guides.
• Turnkey: six-figure budgets are normal once you add concrete and erection.

Why the same size can price very differently

• Design type. Tubular residential buildings are cheaper per square foot than I-beam PEMB shells. Apples to apples matters.
• Loads and code. Florida wind, Rocky Mountain snow, or coastal exposure will add steel and anchors. That changes price.
• Height and door sizes. Taller legs and 12×12 or 12×14 roll-ups push steel weight and hardware cost.
• Foundation. Slab costs vary with thickness, rebar, and soil prep. National guides place a 50×100 slab near $30k at average rates.
• Install distance and lead times. Freight and crew travel show up in the quote.
• Finish choices. Insulation, framed openings, wainscot, windows, lean-tos, and interior buildout all stack up.

Pick the right size on the first try

• Homeowner: If you have two cars and tools, 24×30 feels right. If you wrench on weekends, jump to 24×40. The cost bump is smaller than the regret of a cramped shop. Current dealer pricing supports that jump for many buyers.
• Farmer or rancher: Equipment dictates width. Measure the tallest ROPS and header height you need, then size doors one step larger. Many ag shops settle at 30×50 or 40×60 so tractors and attachments fit without unpinning.
• Contractor: For two service trucks, racks, and a parts room, 30×50 works. If you plan a lift or future CNC, 40×60 gives clear staging and safer forklift lanes. Current kit and turnkey guides back the price delta you should plan for.

Real examples you can click through

• 18×20 carport shown installed about $1,870. 18×20 carports listed about $2,300 – $2,700.
• 18×20 garage example near $5k total, deposit noted on the page.
• 24×30 and 24×40 dealer pages show current installed pricing bands used above.
• 30×40 cost pages that break out kit, slab, and erection for 2025.
• 40×60 pages that show kit cost bands and turnkey ranges.
• 50×100 kit estimate and typical slab cost for planning.

Fast cost math you can use today

• Use these national guides as planning guardrails.
• Tubular installed, small to mid sizes: a lot of orders land near $10 – $20 per sq ft for a simple shell, before heavy options. Dealer pages show examples.
• I-beam kit: many 2025 guides show about $15 – $20 per sq ft for the shell.
• Turnkey I-beam: plan about $24 – $43 per sq ft for kit + slab + erection as a national range.

Buyer tips from the field

• Lock the quote window and the delivery window. Many dealers hold pricing 30-60 days and steel costs can nudge up through the year.
• Decide doors early. A 12×12 or 12×14 often means heavier frames and taller legs.
• If you might add a lift or taller equipment later, order height now. It is cheaper than re-framing later.
• Budget the pad honestly. Poor pad prep will cost you in door alignment and water management.
• Keep snow, wind, and exposure on the table. Your local loads are not a suggestion.

Bottom line

Pick the size for how you live and work five years from now. Use the bands here to set a real budget, then get a written quote that matches your loads, height, doors, and site. That is how you avoid change orders and buyer’s remorse.

Frequently Asked Questions (FAQs)

What’s included in the installed price?
Answer: The building shell: frame, roof/ wall panels, trim, delivery, and installation. It does not include the concrete slab, site work, or electrical.

Why does a 12-ga frame cost more?
Answer: It’s thicker and stronger than 14-ga, using more steel. It’s required for heavy snow loads or commercial use.

Horizontal or vertical roof?
Answer: Horizontal is the standard, budget option. A vertical standing seam roof is superior for weather-tightness and longevity, but costs more.

How tall for a vehicle lift?
Answer: Plan for a minimum of 14-foot sidewalls, with 16 feet being ideal for full-size trucks and RVs. Always check your lift’s specs.

Are permits and stamped drawings included?
Answer: No. You are responsible for securing permits. Most building departments will require professionally stamped engineering drawings.

Is concrete included?
Answer: No. The concrete slab foundation is always a separate cost.

What’s the typical lead time?
Answer: Expect 4-8 weeks for manufacturing and delivery, with installation taking a few days to a week.

Can I add a lean-to later?
Answer: Yes, but it’s significantly more cost-effective and structurally simpler to do it during the initial construction.