Repair Calc: DIY Materials

🧱 Repair Calc — how much material do you need?

Planning a room refresh and tired of overbuying rolls or paint? Repair Calc turns room length, width, and height into wallpaper rolls, floor tiles, or paint liters. Add waste %, subtract doors and windows from wall jobs, and get a clear number before you go to the store — offline on your phone.

No accounts required — inputs and preferences stay on the device.

🔊 How it works
1️⃣ Pick Wallpaper, Tile, or Paint
2️⃣ Enter room size (and height for walls)
3️⃣ For walls, set door/window counts and sizes to subtract openings
4️⃣ Tap Calculate — see quantity plus net area

⚠️ Estimates use simple area math and your waste %. Pattern matching, repeat offset, and brand-specific coverage vary — always check the product label.

🛠 Key features
🔢 Wallpaper rolls (standard euro roll size editable)
🔲 Floor tile count from tile size
🎨 Paint liters from coverage and coats
🚪 Doors & windows subtracted from wall area
➕ Waste % buffer
🎨 Concrete workshop look (safety orange)
⚙️ English and Russian
🌙 Light / dark / Auto theme
📴 Works offline

🏠 Perfect for
✔ DIY wallpaper estimates before buying rolls
✔ Bathroom or kitchen floor tile shopping lists
✔ Wall paint liters for a single room
✔ Quick “how much do I need?” checks on site
✔ Anyone who wants a materials helper without a spreadsheet

⚠️ Important notes
Does NOT replace a professional estimator or contractor quote
Does NOT account for complex patterns, niches, or vaulted ceilings
Does NOT order materials or sync shopping lists to the cloud
Helper for personal DIY planning, not a building-code calculator

🔐 Privacy first
🔒 No accounts
🔒 Prefs stay on-device
🔒 No microphone or camera

📱 Repair Calc — know what to buy before you buy it