A placeholder is not the field value
The five local price fields display 0.00 as placeholder text. A placeholder helps show the expected number format, but it does not fill in the field. If you have not entered a rate, the field remains blank for the calculator's completion check.
This distinction explains why the form can look as if every price is zero while the result still says Enter all local prices and concrete yield
. The calculator checks whether each field contains a value; it does not treat the placeholder as an entered amount.
Blank and explicit zero behave differently
| What you see or enter | Field state | Effect |
|---|---|---|
0.00 shown as a hint | Blank value | Does not satisfy the price-field check. |
You type 0 | Explicit numeric value | Satisfies the presence check for that field and contributes zero for that priced quantity. |
| You type a positive amount | Explicit numeric value | That amount is used with the matching material quantity. |
Why five price entries are checked
The current form asks for rates for posts, rails, pickets or slats, concrete bags, and fastener packs. Its submit handler checks that all five input values are nonempty. That rule applies even when a quantity is zero in the selected calculation mode. For example, chain-link mode reports fabric length rather than a picket count, but the picket/slat price field is still part of the form's completion check.
Concrete adds a separate requirement. The tool needs a concrete volume per post and a bag yield; when both produce a calculated bag count, that count can be included in the total. A placeholder or a zero value in either concrete quantity input does not produce a bag count.
How to get the result you intend
- If you do not yet have a rate, leave the price blank and use the material quantities without a cost total.
- If a component truly has no cost in your plan, enter an explicit zero in its price field; do not rely on the
0.00hint. - For a cost estimate, enter the concrete volume and bag yield from the information you are using, then fill every local price field with a matching rate.
An explicit zero is only an input choice; it does not certify that a component is unnecessary. Review the quantities and the scope of the result before using it for a purchase. See why the cost estimate can be missing and which price unit belongs in each field for related details.
Method and source
This guide describes the current Fence Calculator form placeholders and its cost-display check in the calculator and its calculation code. The blank-versus-zero distinction was checked with the current submit handler using blank and explicitly entered zero values. No supplier prices or product claims are used.