🏗️ Concrete 🎨 Painting ⚡ Electrical 🔧 Plumbing 🏠 Flooring 🛖 Roofing 🧱 Masonry ⛏️ Excavation 💡 Ceiling 🪨 Gravel 🏜 Sand 🪜 Stairs ⬜ Drywall 🚧 Fence 🔩 Rebar 🪓 Lumber 🌡 Insulation 🪵 Decking 🟧 Pavers 💨 HVAC 🚰 Water Tank 🐜 Anti-Termite 🪟 Shuttering 🚚 Backfill 🖌 Plastering 💧 Waterproofing 🌿 Landscaping ☀️ Solar Panel 🚽 Septic Tank 🏛 Beam/Column ✂ Tile Cutting 🔨 Wall Framing 📐 Rafter Length 🪚 Board Foot 🧶 Carpet 📜 Wallpaper 🛣️ Asphalt 🍂 Mulch 🪴 Topsoil 🌱 Sod & Turf ⬛ Block Wall

📋 Bill of Quantities 🔄 Unit Converter 📐 Feet-Inch Calc 🏷️ Price Library 💾 Saved Calculations

⚡ Electrical Blog

⚡ Electrical Guides & How-Tos

Every article below solves one real job with real numbers — then hands you to the calculator to run your exact dimensions.

4 guides

🧮 Electrical · Open calculator 📖 All Guides

Quel calibre pour un circuit 20A ?

Cuivre 12 AWG sur 20A : ampacité, règle des 80 % et surclassement.

Chute de tension sur 100 pieds : corriger

Formule 2KIL/CM pour 100 pieds à 120V, règles et seuil de 60 pieds.

Combien de fils dans un conduit PVC 3/4 po ?

Règle des 40 % : sections THHN par calibre, déclassement et surdimensionnement.

Mon tableau 200A est-il surchargé ?

Charge 80A plus nouveaux circuits vs 200A, facteurs et seuils.

More tool blogs

Worked guides grouped by calculator — pick your trade.

🏗️ Concrete 🎨 Painting 🔧 Plumbing 🏠 Flooring 🛖 Roofing 🧱 Masonry ⛏️ Excavation 💡 Ceiling 🪨 Gravel 🏜 Sand 🪜 Stairs ⬜ Drywall 🚧 Fence 🔩 Rebar 🪓 Lumber 🌡 Insulation 🪵 Decking 🟧 Pavers 💨 HVAC 🚰 Water Tank 🐜 Anti-Termite 🪟 Shuttering 🚚 Backfill 🖌 Plastering 💧 Waterproofing 🌿 Landscaping ☀️ Solar Panel 🚽 Septic Tank 🏛 Beam/Column ✂ Tile Cutting 🔨 Wall Framing 📐 Rafter Length 🪚 Board Foot 🧶 Carpet 📜 Wallpaper 🛣️ Asphalt 🍂 Mulch 🪴 Topsoil 🌱 Sod & Turf ⬛ Block Wall