Help us check the details.

Report a calculation problem with enough information to reproduce it.

What to include

Include the tool name, your shared plan URL, the expected count or position, and the result you saw. For a print issue, include the paper size and the measured length of the six-inch calibration ruler. Do not include your street address or other private information in the plan.

Public contact details are pending launch configuration.

Check the formula first

Our calculation reference explains the difference between Overall Length and Clear Length, shared Posts and rounded running measurements. For structural or local code questions, contact the relevant qualified professional or local authority.