| What it does | Free drywall calculator for estimating sheets, joint compound, tape, screws and cost
| Free online pressure converter between kilopascals and pounds per square inch
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| Stage | Startup
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| Founded | 2026
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| Based in | Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
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| Key features | - Room dimension input with support for feet, inches and metric measurements
- Automatic sheet count calculation for multiple board sizes: 4x8, 4x9, 4x10, 4x12
- Standard opening deductions: 21 sq ft per door, 15 sq ft per window, 112 sq ft per garage door
- Adjustable waste factor from default 10% to custom percentages
- Joint compound calculation in pounds and 4.5 gallon pails
- Joint tape calculation in linear feet and 250 foot rolls
- Drywall screw count and weight estimation
- Optional cost estimate with custom price per sheet and labor rates
- Embed calculator on external websites with responsive resize code
- Support for both rectangular and L-shaped room configurations
| - Live pressure converter with bidirectional conversion between kPa and PSI
- Instant automatic calculation as you type
- Educational content explaining conversion formulas and pressure units
- Common conversion tables and examples
- Clear explanations of PSI and kPa differences
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| What makes it different | - Calculates exact sheet count by laying out the board wall by wall the way a hanger would, accounting for offcuts and reuse
- All calculations run in the browser with no upload or storage of user data
- Transparent assumptions: every rule is checked against manufacturer and code references
- Real-time recalculation and instant results as you type without page reloads
- Metric unit support with automatic conversion of measurements and results
| - Accuracy checked against NIST and BIPM standards
- Completely free with no account or credits required
- Created by a Graduate Civil Engineer with technical expertise
- Focuses on helping users understand the calculations, not just conversion results
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change since last check | 7 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 4 |
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| Citation Flow (Majestic) | 20 | 13 |
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| Referring domains (Majestic) | 5 | 11 |
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Drywall Planner
kPa to PSI