BuildGuiders
1
Free — No signup — Works in-store

Make one trip.
Not four.

Enter your dimensions, get your exact materials list. Every item. Every quantity. Every link — before you leave the house.

🖌️ Paint calculatorSee all calculators
Waste factor included
Full shopping list output
Amazon + Home Depot + Menards
Copy list to clipboard
Build Calculators
Pick your project
Live
🖌️
Paint Calculator
Gallons, primer, rollers, tape — the full kit. Never under-buy or make a second run.
Calculate now →
🪵
Flooring Calculator
Square footage, waste factor, underlayment, and transition strips — all in one list.
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🔲
Tile Calculator
Floor or wall tile with grout lines, adhesive, and the tools everyone forgets.
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🪚
Deck Calculator
Decking boards, joists, post concrete, and every piece of hardware for a solid build.
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🧱
Drywall Calculator
Sheet count, joint compound, tape, screws — the full mudding kit.
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🌿
Mulch & Topsoil
Cubic yards or bags for any bed depth. Landscape fabric and edging included.
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🏗️
Concrete Calculator
Slabs, footings, or post holes. Bags or yards — plus your mixing tools.
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🪟
Fence Calculator
Posts, panels, concrete, post caps, and gate hardware for any fence run.
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Maintenance Calculators
Keep it looking good
New
🖌️
Deck Stain Calculator
How many gallons you actually need — including railings. The part everyone under-buys.
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Lawn & Garden Calculators
Grow something great
New
🌱
Grass Seed Calculator
Pounds of seed, starter fertilizer, and straw cover — for new lawns, overseeding, or patch repair.
Calculate now →
New
🥕
Raised Garden Bed Soil
Bags of soil, compost, and perlite to fill any raised bed. Premix or 60/30/10 DIY mix.
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Interior Calculators
Finish the inside
New
🌸
Wallpaper Calculator
Rolls, paste, and tools — peel-and-stick, pre-pasted, or traditional. Pattern repeat waste included.
Calculate now →

How it works
01
Enter your dimensions

Length, width, height. Add multiple rooms or sections if needed. Takes 30 seconds.

02
Get the exact count

Waste factor built in. We round up correctly. No guessing, no rounding down.

03
Walk out with a list

Every item you need — Amazon, Home Depot, and Menards links — including the stuff you'd forget.

Why BuildGuiders
Built by someone who's
made that second trip.
🛒
Lists, not just numbers

We tell you the gallons, the primer, the rollers, the tape. Everything that goes in the cart.

📐
Waste factor built in

Cuts waste material. Odd-shaped rooms need extra. It's already accounted for.

📋
Copy it, go

One tap copies your whole list as plain text. Paste in Notes or text it to whoever's making the run.

📱
Works in the aisle

Mobile first. Pull it up standing in the store and get your answer in 30 seconds.

Shopping list output
What you actually get

Every item on your list has three purchase options — pick your store.

Your Shopping List
412 sq ft · 2 coats · everything included
Copy list
2
Interior PaintPaint
2 gal covers your surface area with 2 coats
Amazon
Home Depot
Menards
1
Interior PrimerPrimer
Seals surface for better coverage and adhesion
Amazon
Home Depot
Menards
2
Roller Covers 3/8" napTool
3/8" nap for smooth walls. Use 1/2" for textured.
Amazon
Home Depot
Menards
Ready to stop guessing?

Free, fast, no signup required.

🖌️ Calculate my paint