Calculator
Gardening focus: plan hardscape with planting beds, drainage, and safe clearances.
Example Data Table
Sample inputs with a compliant result.
| Units | Lot (W×D) | Setbacks (F/R/L/R) | Actual (F/R/L/R) | Deck (W×L) | Buffer | Overall |
|---|---|---|---|---|---|---|
| ft | 60 × 120 | 10 / 15 / 5 / 5 | 12 / 20 / 6 / 8 | 20 × 30 | 1 | PASS |
This example assumes measurements are taken at the deck’s outermost edge.
Formula Used
- Effective actual clearance = max(0, measured clearance − edge projection)
- Required clearance = required setback + safety buffer
- Margin = effective actual clearance − required clearance
- Status: PASS if margin ≥ 0, otherwise FAIL
- Adjustment needed = |margin| when FAIL, else 0
- Max deck width = max(0, lot width − left required − right required)
- Max deck length = max(0, lot depth − front required − rear required)
How to Use This Calculator
- Choose your units and enter lot width and depth.
- Enter front, rear, and side setback minimums.
- Add a safety buffer if you want extra clearance.
- Measure deck-to-line distances on all four sides.
- Optional: include the equipment pad clearance check.
- Press Calculate to see pass/fail and adjustments.
- Use CSV or PDF export for sharing and records.
Reminder: setback rules vary by region and project type.
Always confirm requirements before construction or planting.