Quantity Takeoff Calculator Skill
SkillDev toolsConstruction quantity takeoff skill for concrete, steel, earthwork, and materials
Instructions available. Your AI can read the instructions. Execution depends on the setup they require.
Account requirements not reviewed. Check the skill instructions before use; ahel provides instructions and does not run this skill.
Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.
Then ask your AI: use the Quantity Takeoff Calculator Skill skill
What this skill tells your AI
The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/domains/science/civil-engineering/skills/quantity-takeoff-calculator/SKILL.md and read by ahel’s review.
Purpose
The Quantity Takeoff Calculator Skill calculates construction quantities including concrete volumes, steel weights, earthwork quantities, and material takeoffs from drawings or BIM models.
Capabilities
- Concrete volume calculation
- Steel weight calculation
- Earthwork quantities
- Pipe and conduit lengths
- Area calculations (formwork, finishes)
- Unit conversion
- Waste factor application
- BIM-based takeoff
Usage Guidelines
When to Use
- Estimating project quantities
- Supporting cost estimates
- Verifying contractor quantities
- Planning material procurement
Prerequisites
- Design documents available
- Takeoff categories defined
- Unit system established
- Waste factors identified
Best Practices
- Use consistent methods
- Document measurement rules
- Apply appropriate waste factors
- Cross-check critical items
Process Integration
This skill integrates with:
- Construction Cost Estimation
- Specifications Development
Configuration
quantity-takeoff-calculator:
categories:
- concrete
- steel
- earthwork
- masonry
- piping
sources:
- bim-model
- drawings
- cad
units:
- imperial
- metric
Output Artifacts
- Quantity summaries
- Material takeoffs
- Cost backup data
- BOM reports
Signals
- GitHub stars
- 2k
- Forks
- 112
- Last commit
- Sep 2026
Advanced
- Item type
- skill
- Key
quantity-takeoff-calculator- Source
- github.com/a5c-ai/babysitter