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building today?

Pick a material — we walk you through every product you need, step by step.

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Room

Options

Results

📐 Room dimensions

Enter feet, inches, and fractions — just like reading a tape measure.

Length

frac

= 12.00 ft

Width

frac

= 10.00 ft

Ceiling height

frac

= 9.00 ft

💡

Read your tape left to right: big numbers = feet, small marks = 16ths of an inch. The mark between 0 and 1/8" is 1/16". Standard ceiling is 8 or 9 ft.

🚪 Openings & finish

Count your doors and windows — we'll subtract them automatically. Be as precise as you like.

Coats of paint

Price per gallon ($)

Count your openings

🚪 Standard doors (21 sq ft each)

🪟 Windows (15 sq ft each)

Include ceiling?

⬆️ Yes — paint the ceiling too

LIVE PREVIEW

—

🖌️

Dark colour over light (or vice versa) always needs 3 coats. Semi-gloss covers better than flat. New drywall always needs primer first!

Paint needed

—

gallons of paint

Paint cost (est.)

—

Net wall area

—

🛒 Complete shopping list

🪣

Paint

Interior latex, 2 coats recommended

—

⬜

Primer

1 coat on new/patched surfaces

—

~$30/gal

🖌️

Roller covers

3/8" nap for smooth walls

—

~$4 each

🪣

Painter's tape

For trim and edges

—

~$6/roll

🧴

Patching compound

Fill holes before painting

1 tub

~$10

🗑️

Painter's drop cloth

Protect floors and furniture

—

~$12 each

📋 Calculation breakdown

Total wall area—

Deductions—

Coats applied—

Coverage rate350 sq ft / gal

Gallons to order—

🛒

Always round up and buy 1 extra gallon for touch-ups. Photo the label — colour lots change batch to batch.

Surface

Sheets

Results

📏 Surface to cover

Enter the total wall length and ceiling height. We'll calculate the full surface area.

Total wall length

frac

= 40.00 ft

Ceiling height

frac

= 9.00 ft

What are you drywalling?

🏠

Walls

⬆️

Ceiling

🏗️

Both

💡

Add all 4 wall lengths together for a room. New drywall over old? Check that existing fasteners are countersunk first.

🧱 Sheet type & pricing

Choose your sheet size. 4×12 means fewer joints and less taping for standard 9 ft ceilings.

📦

4 × 8

32 sq ft

📦

4 × 12

48 sq ft

📦

4 × 16

64 sq ft

Waste factor 10%

Price per sheet ($)

Room width

frac

= 12.00 ft

🧱

Use 10% waste for simple rooms, 15% for lots of angles or arches. Order in bundles of 4 — don't get caught short mid-job.

Sheets needed

—

drywall sheets

Sheet cost (est.)

—

Total coverage

—

🛒 Complete shopping list

🧱

Drywall sheets

4×8, 1/2" standard

—

🔩

Drywall screws

1-5/8" coarse thread, ~32 per sheet

—

~$12/lb

🪣

Joint compound

All-purpose, for taping & finishing

—

~$18/bucket

📜

Drywall tape

Paper tape for all seams

—

~$8/250 ft roll

🔲

Corner bead

Metal or vinyl for all outside corners

—

~$3/piece

🪚

Sanding sponge / mesh

120-grit for finish coat

—

~$5 each

📋 Calculation breakdown

Raw area—

With waste—

Sheet size—

Screws needed—

🔩

Plan 3 coats of joint compound — coat, dry, sand, repeat. Don't rush drying time or you'll get cracking. Prime before painting.

Room

Material

Results

📐 Room dimensions

Measure at the widest points. Include closets if you're flooring them too.

Length

frac

= 15.00 ft

Width

frac

= 12.00 ft

Material price ($/sq ft)

Install cost ($/sq ft)

📏

For L-shaped rooms, break into two rectangles and add the areas. Always measure at the longest and widest points.

🪵 Choose your material

Pick your flooring type — tile/ceramic will unlock extra fields.

🪵

Hardwood

+10%

🟫

Laminate

+10%

⬜

Tile/Ceramic

+10%

🟩

Vinyl

+8%

🟧

Carpet

+5%

🔲 Tile size

◻️

12×12

🔲

18×18

⬛

24×24

▬

12×24

✏️

Custom

enter below

Tile width (in)

Tile height (in)

Tiles per box

Price per box ($)

Grout price ($/bag)

Adhesive price ($/bag)

🔲

Tiles per box is printed on the carton. Also note the sq ft per box — a useful double-check. Keep 1 extra box for repairs.

Layout angle Straight (0°)

💡

Diagonal layouts look great but add 15% waste. Always buy from the same dye lot — colours vary between batches.

You need

—

sq ft of flooring

Materials cost

—

Total with labour

—

🛒 Complete shopping list

🪵

Flooring

Including waste factor

—

🪣

Tile adhesive / thinset

Coverage: ~40 sq ft per 50 lb bag

—

🟤

Grout

Unsanded for joints <1/8", sanded for wider

—

🧹

Grout float & sponges

For spreading and cleaning grout

1 set

~$15

🔵

Tile spacers

1/8" or 3/16" — consistent joints

—

~$4/bag

🧴

Grout sealer

Apply after 72 hrs — protects & extends life

—

~$18/bottle

📐

Baseboard / quarter round

To cover expansion gap at walls

—

~$2/ft

📋 Calculation breakdown

Room area—

Waste factor—

Total to order—

Tile size—

Boxes needed—

Labour estimate—

🛒

Order 10–15% extra. Keep leftover pieces for future repairs. Always round up to the nearest full box.

Project

Dimensions

Results

🏗️ What are you pouring?

Each project type has a recommended thickness — we pre-fill it for you.

🚗

Driveway

4" thick

🪴

Patio/Slab

4" thick

🏠

Foundation

8" thick

🧱

Footing

6"+ thick

🚶

Walkway

3.5" thick

⚠️

Driveways need min. 4" for cars, 6" for trucks. Footings must go below frost line — check your local code before pouring.

📐 Pour dimensions

Enter your area. Thickness was pre-set from your project type — adjust if needed.

Length

frac

= 10.00 ft

Width

frac

= 10.00 ft

Thickness (inches)

inches

frac

= 4.00" (0.333 ft)

Ready-mix price ($/yd³)

60 lb bag price ($)

🚚

Ready-mix is cheaper per yard for pours over 1 cu yd. One 60 lb bag covers ~0.45 cu ft. Always order 10% extra.

Concrete needed

—

cubic yards

Ready-mix cost

—

60 lb bags equiv.

—

🛒 Complete shopping list

⬛

Concrete (ready-mix)

Or use bag equivalent below

—

📦

60 lb bags (alternative)

For small pours under 1 cu yd

—

🔩

Rebar (optional)

#4 rebar on 18" grid for driveways/slabs

—

~$1.20/ft

🕸️

Wire mesh (alternative)

6×6 welded wire mesh for slabs

—

~$0.35/sq ft

🪵

Form lumber (2×4 or 2×6)

For perimeter forms

—

~$0.80/ft

🧱

Gravel base / sub-base

4" compacted base under all slabs

—

~$45/ton

🌊

Concrete sealer

Apply after 28-day cure — protects surface

—

~$40/gal

📋 Calculation breakdown

Volume (cu ft)—

Volume (cu yd)—

60 lb bags—

80 lb bags—

💡

Add 10% extra for slabs. For pours over 3 yards, always use ready-mix — hand-mixed bags are inconsistent at scale.

Roof

Shingles

Results

📐 Roof footprint

Measure the length and width of your house at ground level. We apply a pitch multiplier to get actual roof area.

House length

frac

= 40.00 ft

House width

frac

= 30.00 ft

Roof pitch (rise/run)

📐

3/12

Low

📐

6/12

Common

📐

8/12

Moderate

📐

10/12

Steep

📐

12/12

Very steep

💡

The pitch multiplier accounts for extra surface on steep roofs. 6/12 is the most common residential pitch in North America.

🏠 Shingle type & pricing

1 roofing square = 100 sq ft. Standard shingles = 3 bundles/square (~33.3 sq ft/bundle).

▬

3-Tab

3 bundles/sq

◼️

Architectural

3 bundles/sq

⬛

Premium/Heavy

5 bundles/sq

Waste factor 15%

Price per bundle ($)

Ridge length

frac

= 40.00 ft

🏠

10% waste for simple gable, 15% for average, 20%+ for complex roofs. Ridge cap ≈ 1 bundle per 35 linear ft. Always add ice & water shield at eaves.

Bundles needed

—

shingle bundles

Shingle cost

—

Actual roof area

—

🛒 Complete shopping list

🏠

Shingles

Incl. waste & ridge cap

—

📜

Felt underlayment (#15)

4-square rolls = 400 sq ft

—

~$20/roll

🔩

Roofing nails (1-3/4" galv.)

~320 nails per square

—

~$45/5lb box

🪵

Drip edge (metal flashing)

Eaves & rakes perimeter

—

~$3/10ft piece

⬛

Ice & water shield

First 3 ft from eave — mandatory in cold climates

—

~$90/sq

📋 Breakdown

Footprint—

Pitch multiplier—

Actual area—

Roofing squares—

Bundles (w/ waste)—

⚠️

Verify local building code — some areas require double underlayment or specific ice barrier depth. Ice & water shield is mandatory in most Canadian provinces.

Space

Type

Results

📐 Space to insulate

Enter the total area. For walls, use wall area. For attics, use the floor area.

Length

frac

= 20.00 ft

Width

frac

= 15.00 ft

What are you insulating?

⬆️

Attic

R-41 to R-60

🏠

Walls

R-19 to R-24

⬇️

Crawlspace

R-20 to R-25

💡

R-value = résistance au flux de chaleur. Plus la valeur est haute, mieux c'est. Au Québec : grenier min. R-41 (recommandé R-50+), murs R-22, vide sanitaire R-20. Vérifiez votre code local.

🪟 Insulation type

Each bag label shows its R-value and sq ft coverage — check before buying.

🟨

Fiberglass batts

~40 sq ft/bag

🟫

Mineral wool

~40 sq ft/bag

☁️

Blown-in

~25 sq ft/bag

⬜

Rigid foam

4×8 sheet

Target R-value

Price per bag ($)

🌡️

For blown-in cellulose, add 20% — it settles over time and needs extra depth. Always wear a respirator when handling insulation.

Bags/batts needed

—

bags or batts

Material cost

—

Area

—

🛒 Complete shopping list

🟨

Insulation

Fiberglass batts

—

🪣

Vapor barrier (6 mil poly)

Required in most cold-climate applications

—

~$0.05/sq ft

🔵

Acoustic sealant

Seal around electrical boxes & penetrations

2 tubes

~$8 each

🥽

Safety equipment

Respirator, gloves, safety glasses

1 set

~$30

📋 Breakdown

Area—

Coverage per bag—

Target R-value—

Project

Results

🪚 Wall framing

Calculate studs, plates, and total board feet for your walls.

Wall length

frac

= 20.00 ft

Wall height

frac

= 9.00 ft

Stud spacing

📏

16" O.C.

Standard

📏

24" O.C.

Energy code

Number of walls

Price per 2×4×8 ($)

💡

Add 15% for waste and cuts. Use treated lumber for walls touching concrete. 2×6 framing gives better insulation at ~40% higher cost.

Studs needed

—

2×4 studs

Lumber cost

—

Board feet

—

🛒 Complete shopping list

🪵

2×4 studs (8 ft)

Wall framing, incl. 15% waste

—

🪵

Top & bottom plates

3 plates per wall run (2 top, 1 bottom)

—

🔩

Framing nails (3")

~1 lb per stud

—

~$15/lb

📋 Breakdown

Studs per wall—

Total walls—

With 15% waste—

Area

Results

🌿 Area & depth

Calculate cubic yards and tons of gravel, mulch, topsoil, or sand.

Length

frac

= 20.00 ft

Width

frac

= 10.00 ft

Depth 3 inches

Material

🪨

Gravel

~2800 lb/yd³

🌿

Mulch

~800 lb/yd³

🟤

Topsoil

~2200 lb/yd³

⬛

Sand

~2400 lb/yd³

Price per cubic yard ($)

Price per ton ($)

💡

Mulch: 2–3" depth for landscaping. Gravel base under slabs: 4" minimum. Add 10% for compaction loss on gravel projects.

You need

—

cubic yards

Weight (tons)

—

Estimated cost

—

📋 Breakdown

Area—

Depth—

Volume (cu ft)—

Volume (cu yd)—

Weight—

🚚

Most bulk delivery trucks carry 10–14 yards. A full gravel truck weighs 25–30 tons — verify your driveway can handle the load.

Layout

Results

🚧 Fence layout

Enter total fence length, height, and post spacing to get your complete materials list.

Total fence length

frac

= 100.00 ft

Fence height

frac

= 6.00 ft

Post spacing

📏

6 ft

Privacy fence

📏

8 ft

Standard

Price per post ($)

Price per picket ($)

⚠️

Posts go 1/3 of their length in the ground — a 9 ft post makes a 6 ft fence. Always call 811 before digging! Check local bylaws for max fence height.

Posts needed

—

fence posts

Pickets

—

Material cost

—

🛒 Complete shopping list

🪵

Fence posts (4×4 treated)

Set 1/3 of length in ground

—

🪵

Pickets (1×6)

Cedar or pressure treated

—

🪵

Rails (2×4)

2 rails per bay

—

~$8 each

📦

Concrete (60 lb bags)

2 bags per post hole

—

~$7/bag

🔩

Galvanized deck screws

1-5/8", 2 lbs for whole job

2 lbs

~$12/lb

📋 Breakdown

Total length—

Post spacing—

Number of bays—

Surface

Results

🏗️ Surface to stucco

Stucco is applied in 3 coats — scratch, brown, finish. One 80 lb bag covers ~27 sq ft per coat at 3/8" thickness.

Total wall area (sq ft)

Price per 80 lb bag ($)

Number of coats

1️⃣

1 coat

Repair/skim

2️⃣

2 coats

Re-stucco

3️⃣

3 coats

New construction

🌡️

Don't apply below 4°C or above 32°C. Cure each coat 48 hours minimum. Mist with water in hot/dry weather to prevent cracking.

Bags needed

—

80 lb bags of stucco

Material cost

—

Per coat

—

🛒 Complete shopping list

🏗️

Stucco mix (80 lb bags)

All coats combined

—

🕸️

Metal lath

27 sq ft/sheet — new construction only

—

~$18/sheet

🔩

Lath nails (1-1/2")

6" o.c. — 2 lbs for whole job

2 lbs

~$8/lb

🟫

Control joints

Every 144 sq ft of wall

—

~$4 each

📋 Breakdown

Wall area—

Coats—

Coverage per bag~27 sq ft/bag/coat

More calculators in development

🔲 Deck boards

🏊 Pool surround

🪟 Window framing

🏗️ Steel studs

🧯 Spray foam

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