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Is it cheaper to build or buy a shed? Usually building is: our 10×12 estimate is about $4,030 in materials plus about 48 hours each for you and a helper, while a hired build adds an estimated $4,800 to $9,000 in labor to those materials. Small resin or metal kits are the main exception.

Below we compare the four ways to get a 10×12 shed, with estimated costs for each, the hours a DIY build takes, and a break-even line you can run with your own local quotes.

Is it cheaper to build or buy a shed? Costs side by side

There is one way to build and three ways to buy, and each puts the cost in a different place. The figures below are rough estimates for a 120 sq ft (10×12) shed, not quotes.

Option Rough cost, 10×12 What you supply Where the estimate comes from
Build from plans About $4,030 in materials, plus tools you lack All labor, tools, hauling Our priced material list
Kit you assemble About $1,500 to $4,000 for the kit, plus base and extras Base, often the floor, assembly, paint Bob Vila average kit price, all sizes
Kit assembled by a pro Kit price plus about $1,200 to $2,400 Base prep Bob Vila: $10 to $20 per sq ft
Hired build from raw materials About $8,800 to $13,000 Base prep and a decision Bob Vila: $40 to $75 per sq ft before materials, plus our materials

Bob Vila’s shed cost guide puts the average prefab kit at $1,500 to $4,000 across all sizes, pro kit assembly at about $10 to $20 per square foot, and a ground-up build at about $40 to $75 per square foot, not counting materials. We multiplied those rates by 120 sq ft and added our own materials figure. A pre-built shed delivered on a truck is priced by each dealer, so get a written quote for that column.

What does building a shed yourself really cost?

We priced the full material list for our 10×12 gable shed in our shed cost guide. With example 2026 home-center prices it comes to about $3,660, or about $4,030 with 10 percent for waste. Treat $2,600 to $5,000 as the realistic range, since lumber moves: the BLS lumber price index on FRED rose about 8 percent between December 2025 and April 2026.

Add the costs that only the DIY route carries:

  • The plan. A 3DSHEDPLANS plan PDF is $19.99 and includes the material list with quantities, so you can price every board before you buy.
  • Tools you do not own. A circular saw, drill driver, hammer or nailer, speed square, framing square, chalk line, 4 ft level, sawhorses and a sturdy ladder run roughly $200 to $600 new. Add safety glasses, hearing protection and gloves. Borrowing or renting cuts the total.
  • Delivery from the yard. A 10×12 load includes 16 sheets of T1-11 and 101 2x4s, which will not fit in most cars.
  • Mistakes. One bad cut on a 4×8 sheet of siding means buying another sheet. The 10 percent waste allowance covers that.

How many hours does it take to build a shed?

The page for our 10×12 gable shed plan estimates about 48 hours of work for two people, across 19 build sections from the base to trim and paint. That is about 96 person-hours. A first-timer, or one person with a helper only for the wall raising and roof, should expect it to take longer.

Raising walls and hanging roof sheathing is two-person work. Plan that part for a day when your helper is free, and work on the roof only with a ladder set on firm, level ground.

What is your time worth? The break-even line

(Cheapest quote you would accept minus your DIY total) divided by your hours = what building pays you per hour.

Worked example, rounded: take the low end of the hired build, about $8,830. Subtract $4,030 in materials, $20 for the plan and $400 for tools (the middle of the $200 to $600 range), which leaves about $4,380. Divide by 96 person-hours and building pays about $46 per hour. A hired build still needs your hours for base prep, so count those on both sides.

For a sense of scale, the Bureau of Labor Statistics lists the median pay for carpenters at $28.51 per hour in 2024. A builder’s price is higher than a wage because it also covers overhead, insurance, equipment and profit. If the number from your line is more than you would earn with those hours elsewhere, build.

Shed kit vs building from scratch

Before you compare a kit with a plan, check these points on the kit’s spec sheet:

  • What is in the box. Many kits leave out the foundation, and some leave out the floor framing or floor sheathing. Shingles and paint are often extra.
  • Size and door. Kit sizes and door widths are fixed. If a riding mower needs a wider opening, the kit may not have one.
  • Framing and sheathing. Compare stud spacing, floor sheathing thickness and siding type with what you would build. A 3/4 in floor on joists 16 in apart stays flat under a mower.
  • Freight. Some kits ship free and some charge freight for large boxes. Ask before you compare totals.
  • Assembly time. The manufacturer’s instructions usually state a time and crew size. Use it in the break-even line in place of 96 hours.
  • Changes later. Adding a window, a second door, shelving or power to a molded resin shed is harder than adding blocking to a framed wall.

Upkeep differs too. A wood shed needs paint or stain again on the schedule the maker’s label gives, but any board can be replaced. Resin needs no paint, and metal needs scratches touched up before they rust. Ask any kit seller what parts they sell as replacements.

Pre-built and builder sheds: what the quote should include

A delivered shed is the fastest route, but the truck and trailer need room. Ask the dealer for its exact access width and height, and check for low branches, wires, fences and soft ground on the path. Some dealers also offer rent-to-own payments, so compare the total of all payments with the cash price.

Get two or three written quotes for the same spec and check each one for:

  • The base or foundation, and who levels it
  • Floor sheathing thickness and joist spacing
  • Siding type and whether paint or stain is included
  • Roof underlayment, drip edge and shingle or metal type
  • Delivery, setup and haul-away of packaging or scrap
  • The written warranty and what it covers

The FTC’s guide to consumer warranties explains what to read in a written warranty: what is covered, for how long and who pays for labor. A DIY shed has no warranty beyond what each material maker offers, so if a seam leaks or a door sags, the fix is on you.

Build vs buy worksheet

Fill this in with your own numbers. Use the plan’s material list for the build column and written quotes for the others.

Line Build from plans Kit Pre-built or builder
Shed price or materials with waste Priced list Kit price Quote
Foundation or base Your base Your base Included?
Floor, roofing, paint not in the price Already in list Add if missing Included?
Tools you must buy or rent Add Add (fewer) None
Delivery, freight and tax Add Check freight Included?
Your hours About 96 person-hours on a 10×12 From the instructions Base prep only
Total and break-even

When building wins, and when buying wins

Build when:

  • You want a size, door width or window layout that kits do not offer.
  • You own the basic tools or can borrow them, and you have a helper.
  • A truck cannot reach the spot. Lumber can be carried in by hand, though 14 ft boards and 4×8 sheets need a clear side path.
  • You may move the shed later. A shed built on treated skids can be moved later, usually by a shed mover or with equipment.

Buy when:

  • You need storage within a couple of weeks.
  • The shed is small and a resin or metal kit meets your needs.
  • You have no helper for the wall raising and roof.
  • A delivery truck has a clear, level path to the spot.

Every option still needs a level base. Call the free 811 dig line before you dig, and read our shed foundation options to pick blocks, gravel or piers. Rules for size, setbacks and use vary by town and HOA, so check your local permit office first; our shed permit checklist lists what to ask.

Common mistakes when comparing build vs buy

  • Comparing a kit price with a full list. The kit price may skip the base, floor and paint, while your list includes them.
  • Leaving your time at zero. Even if you enjoy the work, write down the hours so you know what you are trading.
  • Comparing different sheds. A 10×12 with a 4 ft door and 3/4 in floor is not the same shed as a 10×12 with a 3 ft door and a thinner floor.
  • Forgetting delivery access. A pre-built shed that cannot reach the backyard may have to be built on site instead. Ask the dealer before you order.
  • Pricing from a sketch. A sketch misses blocking, trim and flashing. Price from a complete shed material list.

What we checked: material quantities come from our 10×12 gable plan’s material list and the 48-hour estimate from its plan page; kit, assembly and hired labor rates come from Bob Vila’s shed cost guide; the wage comes from the BLS Occupational Outlook Handbook; lumber price movement comes from the BLS index on FRED. Every dollar figure here is an estimate that varies by region and lumber prices.

Plans that fit

Every 3DSHEDPLANS™ plan is a PDF with a printable material list, cut lengths and 3D step-by-step images, so you can fill in the build column of the worksheet before you buy one board.

Browse every size and roof style on the shed plans page.

Frequently asked questions

Is it cheaper to build a shed or buy one?

For a wood shed of the same size and quality, building it yourself usually costs less, because you supply the labor a builder charges for. Our 10×12 estimate is about $4,030 in materials, against an estimated $8,800 or more for a hired build. Small resin or metal kits can cost less than the lumber.

How long does it take to build a shed yourself?

The page for our 10×12 gable plan estimates about 48 hours of work for two people. First-time builders, or one person working with occasional help, should plan on more weekends than that.

Is a shed kit cheaper than building from plans?

It can be, especially for small sizes. A kit usually leaves out the foundation and often the floor, and its sizes and door widths are fixed. Add the base, floor, paint, freight and any assembly fee to the kit price before you compare it with a priced material list.

When is buying a pre-built shed the better choice?

When your time is worth more to you than the savings, when you need the shed in days rather than weeks, or when you have no helper or tools. Check that a delivery truck can reach your site, and check your local permit office before you order.

Do I need a permit whether I build or buy a shed?

Rules vary by town, shed size and use, and a delivered shed may need a permit just like one you build. Check your local permit office before you buy anything.

Shed building guides