Skip to content
Design free

Garage cost calculator

A flatbed cart loaded with stacked 2x4 lumber, OSB sheets and bundles of roof shingles in a lumber aisle, a garage door panel behind itIllustration

Garage cost calculator

Pick the size and how many cars. The list is the garage designer's own materials list, line by line: slab, lumber, trusses, sheathing and siding, roofing, doors and hardware, each priced at a named store or from a named price guide.

A 24x24 2-car garage, 9 ft walls, 576 sq ft. Preliminary checks passed for the loads you entered. Local approval not checked. 1 item for your builder or engineer: seismic design category.

Materials
About $11,900
At shelf prices
$7,420.00
Estimated from ranges
$4,485.00
Per sq ft, materials
$20.67

Exact sum $11,905.00.

Next: design this 24x24 free, in 3D

The designer opens with the same size, cars and walls. Place your doors and windows, see it in 3D, read the automated checks and get the full materials list. The builder's plan is $79, only if you want it.

Open it in the designer
  • 37 of 41 lines at store prices; 4 from published ranges ($2,787 to $6,183); 0 need a quote.
  • Labor if you hire it out: $11,520 to $28,800 at $20 to $50 per sq ft (Angi, Sep 2026). A broad reference from published price guides, not a quote or a forecast for your site.
  • Slab by a contractor instead: $2,880 to $5,760 at $5 to $10 per sq ft installed (HomeGuide, Jan 2026)
GroupLinesCost
Foundation4$2,093.56
Lumber17$1,459.98
Trusses2est. $2,600.00
Sheathing and siding4$1,901.84
Roofing6$1,562.24
Doors and windows3$1,918.20
Hardware5$369.18
Every line, with the store, the date and the product
ItemQtyPrice
Ready-mix concrete, 3,500 psi, air-entrained 5 to 7%Estimate: $119 to $147 per cubic yard (ready-mix concrete, delivered, full truck), HomeGuide, concrete cost per yard, Jan 2026; this line $1,369 to $1,691. Check: a load under 10 cubic yards adds about $53 per yard (same source).11.5 cubic yardsest. $1,530
Crushed stone base under the slab, 4 inEstimate: $15 to $75 per cubic yard (bulk crushed stone or gravel), HomeGuide, crushed stone and gravel prices, Dec 2025; this line $119 to $593. Check: delivery adds $10 to $25 per ton beyond a free 5-ton, 5-mile minimum (same source).7.9 cubic yardsest. $356
Rebar #4, 20 ft1/2-in x 20-ft Steel #4 Rebar, model 158304. $14.28 per 20 ft bar. Lowe's, Atlanta-Edgewood store, Oct 25, 2026.11 pieces$157.08
Anchor bolts, 1/2 x 10 in, with nut and washerHillman 1/2-in x 10-in Galvanized Exterior Coarse Thread Anchor Bolt, model 260262. $1.98 each. Lowe's, Atlanta-Edgewood store, Oct 25, 2026. Closest match: the listing does not say whether a nut and washer come with the bolt.26 pieces$51.48
2x4 pressure-treated, 8 ftWeatherShield 2 in. x 4 in. x 8 ft. #2 Prime Ground Contact Pressure-Treated Southern Yellow Pine Lumber, model 291224. $4.88 each. Home Depot, Hamilton Mill store, Oct 8, 2026.1 board$4.88
2x4 pressure-treated, 10 ftWeatherShield 2 in. x 4 in. x 10 ft. #2 Prime Ground Contact Pressure-Treated Southern Yellow Pine Lumber, model 253920. $8.38 each. Home Depot, Hamilton Mill store, Oct 8, 2026.1 board$8.38
2x4 pressure-treated, 16 ftWeatherShield 2 in. x 4 in. x 16 ft. #2 Prime Ground Contact Pressure-Treated Southern Yellow Pine Lumber, model 253920. $14.78 each. Home Depot, Hamilton Mill store, Oct 8, 2026.4 boards$59.12
2x8 framing lumber, 8 ft2 in. x 8 in. x 8 ft. #2 Premium Grade Southern Yellow Pine Dimensional Lumber, model 689238. $10.25 each. Home Depot, Hamilton Mill store, Oct 8, 2026.2 boards$20.50
2x8 framing lumber, 10 ft2 in. x 8 in. x 10 ft. #2 Premium Grade Southern Yellow Pine Dimensional Lumber, model 689246. $12.82 each. Home Depot, Hamilton Mill store, Oct 8, 2026.1 board$12.82
2x6 framing lumber, 8 ft2 in. x 6 in. x 8 ft. #2 Premium Grade SPF Dimensional Lumber, model 96032. $8.62 each. Home Depot, Hamilton Mill store, Oct 8, 2026.2 boards$17.24
2x6 framing lumber, 12 ft2 in. x 6 in. x 12 ft. #2 Premium Grade SPF Dimensional Lumber, model 058445. $12.92 each. Home Depot, Hamilton Mill store, Oct 8, 2026.2 boards$25.84
2x6 framing lumber, 16 ft2 in. x 6 in. x 16 ft. #2 Premium Grade SPF Dimensional Lumber, model 058447. $17.22 each. Home Depot, Hamilton Mill store, Oct 8, 2026.3 boards$51.66
2x4 framing lumber, 8 ft2 in. x 4 in. x 96 in. #2 Premium Grade KD-HT Stud, model 058449. $4.25 each. Home Depot, Hamilton Mill store, Oct 8, 2026.3 boards$12.75
2x4 framing lumber, 10 ft2 in. x 4 in. x 10 ft. #2 Grade SPF Dimensional Lumber, model 6091. $7.36 each. Home Depot, Hamilton Mill store, Oct 8, 2026.64 boards$471.04
2x4 framing lumber, 12 ft2 in. x 4 in. x 12 ft. #2 Premium Grade SPF Dimensional Lumber, model 058440. $8.84 each. Home Depot, Hamilton Mill store, Oct 8, 2026.19 boards$167.96
2x4 framing lumber, 16 ft2 in. x 4 in. x 16 ft. #2 Grade SPF Dimensional Lumber, model 6091. $11.78 each. Home Depot, Hamilton Mill store, Oct 8, 2026.8 boards$94.24
1x6 fascia board, primed, 8 ft1 in. x 6 in. x 8 ft. Radiata Pine Finger Joint Primed Board, model 280552. $15.92 each. Home Depot, Hamilton Mill store, Oct 8, 2026.8 boards$127.36
1x6 fascia board, primed, 12 ftPrimeLinx 1x6x12 in. x 6 in. x 12 ft. Radiata Pine Finger Joint Primed Board, model 253192. $24.36 each. Home Depot, Hamilton Mill store, Oct 8, 2026.6 boards$146.16
1x4 trim board, primed, 8 ftPrimeLinx 1 in. x 4 in. x 8 ft. Radiata Pine Finger Joint Primed Board, model 252978. $10.22 each. Home Depot, Hamilton Mill store, Oct 8, 2026.3 boards$30.66
1x4 trim board, primed, 12 ftTrim Board Primed Finger-Joint (Common: 1 in. x 4 in. x 12 ft.; Actual: .719 in. x 3.5 in. x 144 in.), model 590599. $16.23 each. Home Depot, Hamilton Mill store, Oct 8, 2026.1 board$16.23
1x4 trim board, primed, 16 ftCMPC 1 in. x 4 in. x 16 ft. Radiata Pine Finger Primed Softwood Boards, model 253266. $21.46 each. Home Depot, Hamilton Mill store, Oct 8, 2026.9 boards$193.14
Common trussesEstimate: $100 to $300 per truss (wood truss, 4/12 to 6/12, material only), HomeGuide, roof truss prices by span, Jan 2026; this line $1,100 to $3,300. Check: Summertown Metals lists stock 30 ft 4/12 wood trusses at $139 to $153.60 and 40 ft at $200 to $213.52 (5 ft spacing, read Oct 13, 2026); trusses for your loads and spacing come from the truss maker's quote.11 trussesest. $2,200
Gable-end trussesEstimate: $100 to $300 per truss (wood truss, 4/12 to 6/12, material only), HomeGuide, roof truss prices by span, Jan 2026; this line $200 to $600. Check: Summertown Metals lists stock 30 ft 4/12 wood trusses at $139 to $153.60 and 40 ft at $200 to $213.52 (5 ft spacing, read Oct 13, 2026); trusses for your loads and spacing come from the truss maker's quote.2 trussesest. $400
Panel siding, APA-rated plywood, 19/32 in, 4 x 8 ftPlytanium Plywood Siding Panel T1-11 8 IN OC (Nominal: 19/32 in. x 4 ft. x 8 ft.), model 113699. $46.78 each. Home Depot, Hamilton Mill store, Oct 8, 2026.32 sheets$1,496.96
Z-flashing for the siding joint, 10 ftUnion Corrugating 2.0-in x 0.63-in x 120.0-in Galvanized steel Z Flashing, model GZ. $3.48 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.11 pieces$38.28
OSB roof sheathing, 7/16 in, 4 x 8 ftOSB 7/16 Application as 4ft. X 8 ft. Sheathing Panel, model 386081. $13.63 each. Home Depot, Hamilton Mill store, Oct 8, 2026.26 sheets$354.38
Panel sheathing clips (H-clips), 7/16 in, pack of 50Simpson Strong-Tie PSCL 7/16 in. 20-Gauge Galvanized Panel Sheathing Clip (50-Qty), model PSCL 7/16-R50. $12.22 per pack of 50. 1 x per pack of 50. Home Depot, Hamilton Mill store, Oct 8, 2026.3 packs$12.22
Synthetic roof underlayment, roll of about 900 sq ftTAMKO Synthetic Guard 42-in x 286-ft 905.67-sq ft Synthetic Roof Underlayment, model SG10-TMCO. $108 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.1 roll$108.00
Asphalt shingles, bundle of about 33 sq ftGAF Timberline HDZ Cliffside Algae Resistant Architectural Roof Shingles (33.33-sq ft per Bundle), model 0409214. $51.98 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.24 bundles$1,247.52
Starter strip shingles, bundle of 120 ftGAF Pro-Start Black Starter Roof Shingles (120-lin ft per Bundle), model 1126000. $54.98 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.1 bundle$54.98
Hip and ridge cap shingles, bundle of 25 ftGAF Seal-A-Ridge AS Class 4 Barkwood Algae Resistant Hip Ridge Roof Shingles (25-lin ft per Bundle), model 0855070. $57.78 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.1 bundle$57.78
Drip edge, 10 ftUnion Corrugating 2.38-in x 10-ft Silver Galvanized steel Drip Edge, model G45TSRE. $6.08 each. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.12 pieces$72.96
Roofing nails, 1-1/4 in, 5 lb boxEverbilt 1-1/4 in. x 3D Electro-Galvanized Non-Collated Roofing Nails 5 lbs. (1010-Count), model EB0132075. $21 per 5 lb box. 1 x per 5 lb box. Home Depot, Bronx Terminal store, Sep 30, 2026.3 boxes$21.00
Overhead door, 16' x 7', sectional, with track and springClopay Classic Steel Long Panel 16 ft x 7 ft Non-Insulated White Garage Door without Windows, model HDBL_SW_SOL. Home Depot, Hamilton Mill store, Oct 13, 2026.1 door$1,231.30
Prehung steel walk door, 36 x 80 inWalk Door-PLYCO Universal 3/0 Steel Double Bore [PLYHD30U] Kit, model PLY3/0STEELUKIT. $400.18 each. Summertown Metals price list, Hopkinsville, Kentucky store, Oct 13, 2026.1 door$400.18
Window, 3 x 3 ft, single hung, with nailing fin3030 Single Hung Window, No Grids with Low E and Argon, White Kit, model 3030WSHLEAKIT. $143.36 each. Summertown Metals price list, Hopkinsville, Kentucky store, Oct 13, 2026. Closest match: a 3 x 3 ft vinyl single-hung window kit from a steel building supplier, the size the garage plan draws; check the rough opening on the kit before you frame it.2 windows$286.72
Framing nails, 16d common, 5 lb boxFas-n-Tite 3-1/2-in 8-Gauge Hot-dipped galvanized Common Nails, 223 per box (5 lb), model 16HGC5. $26.98 per 5 lb box. 1 x per 5 lb box. Lowe's, Atlanta-Edgewood store, Oct 8, 2026.4 boxes$26.98
Siding nails, 8d galvanized, 5 lb boxGrip-Rite 2-1/2 in. x 11-1/2-Gauge 8-penny Exterior Galvanized Spiral Shank Siding Nails 5 lb. Box, model 8HGSTHS5. $18.87 per 5 lb box. 2 x per 5 lb box. Home Depot, Bronx Terminal store, Sep 30, 2026.7 boxes$37.74
Sheathing nails, 8d common, 5 lb boxGrip-Rite 2-1/2 in. x 10-1/4-Gauge 8-penny Exterior Galvanized Smooth Shank Common Nails 5 lb. Box, model 8HGC5. $26.98 per 5 lb box. 1 x per 5 lb box. Home Depot, Bronx Terminal store, Sep 30, 2026.4 boxes$26.98
Hurricane ties, H2.5A or equal, one at each truss endSimpson Strong-Tie H2.5A 18-Gauge ZMAX Galvanized Hurricane Tie, model H2.5AZ. $0.98 each. Home Depot, Bronx Terminal store, Sep 30, 2026.26 pieces$25.48
LVL door header, 2 plies of 1-3/4 x 11-7/8 in, 2.0E, 16' 6" long2 x 1-3/4 in. x 11-7/8 in. x 18 ft. LVL, cut to 16' 6", model LPLVL1178(18). $126 each. Home Depot, Hamilton Mill store, Oct 25, 2026.2 pieces$252.00

Read the cost guide

Shelf prices from Lowe's, Home Depot, Summertown Metals price list, read Sep 30, 2026 to Oct 25, 2026. Sales tax, delivery, permits, site work, engineering, electrical, door openers, paint and equipment rental are not included.

The calculator prices the materials list of a real design, line by line: the slab and footing concrete, every stud, plate and header, the trusses, sheathing and siding, roofing, doors and hardware. A 24x24 two-car garage with a 16 ft door and 9 ft walls comes to about $11,900 in materials ($11,905.00 exactly, before sales tax, delivery, labor and site work). Change the size, the cars or your loads and the estimate follows, with the same numbers as the designer and the plan. Want the whole story, size by size? Read the cost guide.

What each free design costs

Every size of our free garage plans, priced the same way. Labor is the published range for building the garage, not a quote.

Free designSq ftMaterials, aboutPer sq ftLabor if hiredChecks
12x22 garage plans1 car, 9 ft walls264$7,639$28.94$5,280 to $13,200Preliminary checks passed for the loads you entered
14x24 garage plans1 car, 9 ft walls336$8,649$25.74$6,720 to $16,800Preliminary checks passed for the loads you entered
20x20 garage plans2 cars, 9 ft walls400$9,507$23.77$8,000 to $20,000Preliminary checks passed for the loads you entered
24x24 garage plans2 cars, 9 ft walls576$11,905$20.67$11,520 to $28,800Preliminary checks passed for the loads you entered
24x30 garage plans2 cars, 9 ft walls720$15,325$21.28$14,400 to $36,000Preliminary checks passed for the loads you entered
24x36 garage plans3 cars, 9 ft walls864$19,423$22.48$17,280 to $43,200Preliminary checks passed for the loads you entered
30x30 garage plans2 cars, 10 ft walls900$18,608$20.68$18,000 to $45,000Preliminary checks passed for the loads you entered
30x40 garage plans3 cars, 10 ft walls1,200$23,167$19.31$24,000 to $60,000Preliminary checks passed for the loads you entered

Where the money goes

The 24x24 garage, about $11,900 in materials, by group:

GroupCostShareLines
Trusses$2,600.0022%2
Foundation$2,093.5618%4
Doors and windows$1,918.2016%3
Sheathing and siding$1,901.8416%4
Roofing$1,562.2413%6
Lumber$1,459.9812%17
Hardware$369.183%5

The five biggest lines: 11 trusses of common trusses (est. $2,200.00); 11.5 cubic yards of ready-mix concrete (est. $1,529.50); 32 sheets of panel siding ($1,496.96); 24 bundles of asphalt shingles ($1,247.52); 1 door of overhead door ($1,231.30).

How the prices were read

Shelf prices from Lowe's, Home Depot, Summertown Metals price list, read Sep 30, 2026 to Oct 25, 2026. Prices differ by store and by week, so each line of the calculator names the store, the date and the product.

Lines that are not sold off a shelf, such as ready-mix concrete, use the middle of a published price range and are kept apart, so you can see what is a store price and what is an estimate. Labor is the range price guides publish for building a garage, and the slab by a contractor is shown separately. The quantities are the designer's: lumber packed onto the lengths the yard sells, sheets by the panel, hardware by the box.

Not included: sales tax, delivery, permits, site work and excavation, engineering, electrical, door openers, paint and equipment rental. Price tables last read Oct 8, 2026.

Questions

Anything else? Write to us or read the guides.

Questions about garage cost

Materials for our 20x20 two-car design, a 16 ft door, a walk door, a window and a slab, come to about $9,500 ($9,507.35 exactly, before sales tax, delivery, labor and site work). So a small garage fits under that figure when you build it yourself and the site is level; hiring the work out adds $8,000 to $20,000 for the 20x20 in the published labor ranges, and a bigger garage starts higher.

For our 24x24 design the materials come to $20.67 per sq ft ($11,905.00 for 576 sq ft, slab concrete included), at Lowe's, Home Depot, Summertown Metals price list, read Sep 30, 2026 to Oct 25, 2026. Hiring the build out adds $11,520 to $28,800, which is $20 to $50 per sq ft in the published labor figures.

$11,520 to $28,800 at $20 to $50 per sq ft (Angi, Sep 2026), which for a 24x24 is $11,520 to $28,800. If a contractor pours the slab instead of you: $2,880 to $5,760 at $5 to $10 per sq ft installed (HomeGuide, Jan 2026). These are broad references from price guides, not a quote for your site.