Input Parameters
Enter counts and options. Rates are editable so you can reflect your project requirements.
Example Data Table
This example shows typical settings for a small interior office area.
| Scenario | Single | Double | Location | Material | Fire | Security | Egress | Access |
|---|---|---|---|---|---|---|---|---|
| Office corridor set | 10 | 4 | Interior | Wood | None | Standard | No | None |
| Exterior entry set | 2 | 1 | Exterior | Steel | 60 | High | Yes | Card |
Try copying the first row into the form and calculate.
Formula Used
The calculator uses rule-based takeoff, then cost extension. Replace assumptions with your hardware schedule whenever available.
- Openings = single doors + double doors.
- Leaves = single doors + (2 × double doors).
- Hinges per leaf: 3 typical, 4 if height > 2100 mm, 5 if height > 2400 mm; steel or high-security floors to at least 4.
- Hinge quantity = leaves × hinges per leaf.
- Closer quantity: auto includes closers for exterior, fire-rated, or high-security doors; always includes for every leaf; none excludes them.
- Locksets = single doors + double doors × (both active leaves ? 2 : 1).
- Panic devices use the same rule as locksets when enabled.
- Strikes = max(locksets, panic devices).
- Seals (auto) = openings for exterior or fire-rated conditions.
- Thresholds (auto) = openings for exterior conditions.
- Access readers = openings × reader sides (1 or 2) when access control is selected.
- Electric strikes = strikes when electrified is enabled or implied by access control.
- Power supplies = ceil(openings ÷ 8) when electrified.
- Line cost = quantity × unit rate.
- Subtotal = sum of all line costs.
- Misc allowance = subtotal × misc%.
- Contingency = (subtotal + misc) × contingency%.
- Grand total = subtotal + misc + contingency.
How to Use This Calculator
- Enter the number of single and double door openings.
- Choose door height, location, material, fire rating, and security.
- Decide if double doors have one or two active leaves.
- Enable egress hardware and access control options when required.
- Review and edit unit rates to match your supplier or contract.
- Press Calculate to see the schedule above the form.
- Download CSV or PDF for recordkeeping and coordination.