Some Calcs.com calculators and features are gated behind specific subscription plans. If a calculator tab or input is greyed out or shows a lock or upgrade prompt mid-workflow, the most likely reason is that the feature lives on a higher plan than the one you’re currently subscribed to. For example, the concrete beam design tab is part of our Pro plan, so it won’t be accessible on a lower-tier subscription.
What’s available on each plan
Plan inclusions change as we release new calculators and features, so the authoritative list of what each plan unlocks lives on the Calcs.com pricing page. At a high level, lower tiers cover analysis and the most-used wood, steel, and concrete member calculators, while Pro adds the broader concrete suite (including the concrete beam design tab), advanced lateral and foundation calculators, and additional region-specific code modules. Region-specific (US, AU/NZ, CA, etc.) calculator availability also varies by plan — check the pricing page for the current breakdown.
If you’re not sure which plan you’re on, open your account from the top-right menu and look at Subscription under Account & Admin — your current tier is shown at the top of that page.
What you see when a feature is plan-gated
When you open a calculator or tab that isn’t included in your current plan, Calcs.com doesn’t silently fail — you’ll see an upgrade prompt or a locked-tab indicator that names the plan required to unlock it. Inputs in a gated tab are typically disabled, and any linked outputs flowing into that tab won’t compute until the plan is upgraded.
If you’ve opened a project shared with you that uses calculators outside your plan, those calculators will still display their existing inputs and results in read-only form, but you won’t be able to edit them or run new analyses against them until you upgrade.
How to upgrade
Go to Account & Admin → Billing → Subscription and choose Change Plan. Select the tier that includes the calculator or feature you need, confirm the prorated charge, and the new features become available immediately on the same account — no re-login required. For team accounts, the account owner or a billing admin needs to perform the upgrade; see How license sharing works for who has permission on a shared subscription.
