Rental prices for reservation
What does rental type mean? In Trail, an automatic rental price can be calculated for reservations. The rental type defines how the calculation is determined.
The system generates the price based on the selected rental type and the prices set for the item model.
Rental price calculation is not enabled by default.
Selecting a Rental Type
An admin user can activate rental calculation from: Admin → General settings → Rentals → Rental type
Select the desired rental type:
- No rental
- By model
- By percentage
Defining Rental Prices for Item Models
Depending on whether the rental type is set to per model or percentage, define the required additional information for each model. If the necessary prices are not set for a model, the system cannot calculate a rental price.
Defining prices requires editor-level access to the Items and Reservations modules.
Proceed as follows:
- Open Items - Models
- Open the model
- Enter for the model:
- Daily rental price
- (If needed) weekly rental price
- Or for percentage-based rental: estimated renewal price
- Save

Rental Type: Per Model
In this model, you define a fixed price per day and/or per week.
Daily Rental (default)
The rental is calculated per day. The first day equals one full rental day, and each additional day equals 0.5 rental days. This is the most common way to calculate rental prices.
Calculation principle:
- First day = 1 rental day
- Following days = 0.5 rental days per day
Example price: €50 / day
| Duration | Calculation | Rental days | Price |
|---|---|---|---|
| 7 days | 1 + (6 × 0.5) | 4 | 4 × €50 = €200 |
| 24 days | 1 + (23 × 0.5) | 12.5 | 12.5 × €50 = €625 |

Weekly Rental (additional setting)
Activation can be requested from Trail support: support@trail.fi. Weekly rental is particularly suitable for longer rentals.
If weekly rental is enabled, the calculation works as follows:
- X weeks + 1–3 days = X × weekly price + 1 × daily price
- X weeks + 4–6 days = Rounded up to the next full week
Example prices:
- Daily rental: €50
- Weekly rental: €100
| Duration | Calculation | Price |
|---|---|---|
| 7 days | 1 × weekly rental | 1 × €100 = €100 |
| 24 days | 3 × weekly rental + 1 × daily rental | €300 + €50 = €350 |
| 25 days | 4 × weekly rental | €400 |
Rental Type: Percentage-Based
When By percentage is selected, the rental is calculated from the model’s estimated replacement value.
Define:
- The percentage (e.g., weekly percentage) in General settings
- The model’s estimated replacement value in the model card
Example:
| Replacement value | Percentage | Duration | Calculation | Price |
|---|---|---|---|---|
| €500 | 20% / week | 7 days | 20% × €500 | €100 |
This model is suitable when the rental price should be proportional to the item’s value.


Editing the Rental Price Manually
If necessary, you can modify the rental price directly in the reservation.
This is useful if a separate price has been agreed upon or if the rental period differs from the total reservation duration.
In the reservation view, you can:
- Change the rental duration used in the calculation
- Enter the rental price manually
Example:
| Reservation duration | Rental duration used | Daily price | Calculation | Price |
|---|---|---|---|---|
| 7 days | 5 days | €20 | 1 + (4 × 0.5) = 3 days | €60 |

⭐ Summary
To enable rental calculation:
- Activate a rental type in General settings
- Define prices for item models
- Add items to a reservation
- The system automatically calculates a rental price suggestion
The rental price can always be adjusted manually if needed.