Garage Calculator & Material Planner
Estimate framed walls, roof, slab and hardware from a rectangular footprint.
Project estimate
Garage Planner
$5,121–$5,889
Material estimate + optional reserve · USD
- Floor area
- 576 ft²
- Net wall area
- 648 ft²
- Roof area
- 607.16 ft²
- Working time allowance
- 5.47 days
87.49 person-hours / 2 people / 8 h per day. Provisional activity rates; adjust in advanced options.
Excludes labor, tax, delivery, equipment rental, permits and site work. Sample prices are not live retailer quotes. Upper budget includes 15% contingency.
Cost breakdown
- Framing
- $2,046
- Walls
- $690
- Roofing
- $980
- Concrete
- $1,360
- Hardware
- $45
Shopping list
0 / 7 checkedWhole packages rounded up. Edit a unit price to use your supplier's quote.
Framing
Wall studs
80 pieces
$400$5 per pieces
Plate / girt allowance
317 ft
$476$2 per ft
Roof trusses (specified separately)
13 trusses
$1,170$90 per trusses
Walls
Wall covering (32 sq ft)
23 sheets
$690$30 per sheets
Roofing
Roof covering (100 sq ft)
7 squares
$980$140 per squares
Concrete
Slab ready-mix
8 yd³
$1,360$170 per yd³
Hardware
Framing nails (1000 count)
1 boxes
$45$45 per boxes
Save this project
Saved on this browser only. No account required.
Assumptions & project notes
- Material allowance: 10%. Package sizes and coverage rates are editable in the inputs.
- This is a quantity takeoff, not structural sizing. Member sections, support spacing, connections, soil bearing and footing dimensions must come from an approved design. Defaults are illustrative.
- Roof area excludes overhangs; add them to the measured footprint. Openings need separately specified headers and trim.
- Check final dimensions, product specifications and any required local approvals before ordering.
Tools & preparation
- Tape measure and framing square
- Level and layout string
- Drill / driver and specified bits
- Suitable saw and clamps
- Footing excavation and concrete tools where required
A preparation list; confirm installation tools with your selected products.
How to use the garage planner
Start with length, width, height, roof pitch (rise per 12). The result includes floor area, net wall area, roof area. Open advanced options to match your product sizes, material allowance and labor expectations.
1. Measure and specify
Measure the footprint, finished levels and access; settle the structural design before choosing member sizes.
2. Adjust the estimate
Match board widths, spacing, stock lengths and connections to the approved layout.
3. Prepare your order
Lay out cuts and supports, then confirm the material list with the timber and hardware supplier.
4. Plan the work
Plan foundations, framing, weather protection and final inspection in the order required by the design.
Frequently asked questions
What does the garage planner estimate?+
Estimate framed walls, roof, slab and hardware from a rectangular footprint. The shopping list includes wall studs, wall covering (32 sq ft), plate / girt allowance, roof trusses (specified separately), roof covering (100 sq ft), slab ready-mix, framing nails (1000 count).
Which assumptions should I check?+
This is a quantity takeoff, not structural sizing. Member sections, support spacing, connections, soil bearing and footing dimensions must come from an approved design. Defaults are illustrative. Roof area excludes overhangs; add them to the measured footprint. Openings need separately specified headers and trim.
Are the prices current supplier quotes?+
No. Initial unit prices are illustrative USD budgeting inputs. Enter a price beside each material to use your own quote. The total includes materials only; labor, shipping, taxes, permits and rental are excluded.
Can I save or share my project?+
Save stores the inputs and prices on this browser. Share link includes the configuration in the address so another device can reopen it. Download CSV exports the shopping list, and Print / PDF opens your browser’s print dialog.