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Use your own world settings and stock

Portal route and build-cost checker

This reference-based checker plans a pair of endpoints and counts the base construction bill. It cannot read your save or determine the exact item-specific exceptions; use the in-game blocked-item icon and current world menu.

Calculated from your chosen world rules, endpoints, counts and inventory
CheckResultStill needed
Home to remoteAllowed by selected rule—
Remote to homeBlocked by selected rule—
Fine Wood200
Greydwarf Eyes200
Grausten300
Molten Cores20

This pair is asymmetric for the selected cargo. Plan the return separately before leaving with valuable items. Material totals are recipe arithmetic, not a guarantee the recipe is unlocked or the build site is valid.

Recipe reference: a wooden Portal is budgeted as 20 Fine Wood, 10 Greydwarf Eyes and 2 Surtling Cores; a Stone Portal as 30 Grausten, 10 Greydwarf Eyes and 2 Molten Cores. Requirements, discovery unlocks, stations and world modifiers can differ from this arithmetic. Inputs stay in this page and reset on reload.

Sources: Portal Stone costs and departure rule · Wooden portal and tag reference.

Separate a pairing failure from a cargo refusal

A portal that does not connect and a portal that refuses your inventory are different failure states. Matching tags determine the link; the departure portal’s item rule and the world’s portal modifier determine whether a loaded trip is allowed. Changing the tag will not make a normal portal accept prohibited metal, and dropping metal will not repair a mismatched tag.

For 1.0.21, the cited community references describe tags as exact and case-sensitive. A tag such as `Swamp` is not safely interchangeable with `swamp`. Keep each destination label short, compare both displayed tags character by character, and use the active portal interface rather than a map marker as the source of truth.

  1. Read the tag at the home portal and the remote portal. Retype the same short label at both ends, preserving capitalization and punctuation.
  2. If the tag matches but the portal remains unpaired, check whether a different portal already uses that name; temporarily use a unique test tag on the intended pair.
  3. If the link is active but travel is refused, inspect carried items for the in-game crossed-out portal indicator and note the world’s portal modifier.
  4. Test the planned journey in both directions. The outbound portal and the return portal can have different cargo permissions when one end is a Stone Portal.
  5. If a modded or hosted world disagrees with the guide, record its build, world rule, mod list and exact portal type before changing more settings.

References: Valheim Wiki: Portal (community reference) · Valheim Wiki: World mechanics (community reference) · Valheim Database: Portal – Stone (community reference)

Why a Stone-to-wood pair can be one-way for metal

The 1.0.21 portal reference says a Stone Portal permits restricted items when departing from it; the world-mechanics reference says a normal wooden portal blocks ores, scraps and metal bars, while the Stone Portal permits them. Read that as a rule on each departure, not as a property granted to the entire pair.

Example: you stand at a Stone Portal carrying ore and enter it; the linked wooden portal can be the arrival. For the return, you now enter the wooden portal. Under standard rules it can reject the same restricted cargo. The safer plan is a compatible departure portal at each end, or a world setting that allows the cargo, or leave/transport that load by a non-portal route. Confirm the active world rule before building around this example.

World rule and departureRestricted cargoWhat to check
Standard rules · wooden portalNormally refusedRemove items marked as blocked or use a permitted departure route
Standard rules · Stone PortalPermitted by the cited 1.0.21 referencesStone Portal must be the portal you enter for that leg
Portal-items modifierThe rule is changed by the world settingRead the saved world modifier; do not assume standard restrictions
No-portals modifierNo portal routeUse a different travel plan; changing tags cannot restore disabled portals

References: Valheim Wiki: Portal (community reference) · Valheim Wiki: World mechanics (community reference) · Valheim Database: Portal – Stone (community reference)

A minimal reproducible check

Do not dismantle a network before you identify the failing layer. Use one intended pair, a unique tag, and a non-restricted test load first. Only after the empty/light-load link is established should you test the restricted cargo rule. This makes the observation useful to a co-op host or guide correction without claiming an undocumented fix.

This check does not diagnose line of sight, structural damage, server desync, mod conflicts or every special-item exception. If the portal says it is linked but still denies a particular item, trust the in-game message and report the precise item name and departure portal type.

Valheim build / platform:
World portal modifier (as displayed):
Home departure portal: wood / stone
Remote departure portal: wood / stone
Home tag (exact spelling):
Remote tag (exact spelling):
Cargo showing blocked icon (item names):
Result home → remote:
Result remote → home:
Mods / server notes:

References: Valheim Wiki: Portal (community reference) · Valheim Wiki: World mechanics (community reference)

Make the next correction report actionable

If the two tagged endpoints are paired but a particular cargo item behaves differently, send the exact item name, installed build, platform, world portal modifier and the type of portal you entered for each leg. Distinguish items held by the character from anything stored in a cart or container.

Use the site contribution form to send a reproducible observation. A report is a proposal for editorial review, not an automatic public comment or a promise that GamerWin has independently repeated the result.

  1. Record each endpoint type and exact tag.
  2. Record the displayed world portal rule and any mod/server differences.
  3. Test one direction at a time, changing only cargo or departure endpoint between checks.
  4. Remove personal identifiers from screenshots and grant publication permission only if you want the report credited.

References: Valheim Wiki: Portal (community reference) · Valheim Wiki: World mechanics (community reference)

Before you play

  • Compare the complete tags, including case; do not diagnose cargo restrictions as a tag fault.
  • Check the active world portal modifier before relying on standard behavior.
  • Evaluate each trip using the portal you enter, not only the portal at the destination.
  • Use the in-game blocked-item icon for individual cargo exceptions.
  • Keep the exact build, world rule, portal types and item name in any reproducible report.

Frequently asked questions

Can a Stone Portal connect to a wooden Portal?

The cited references describe portals as tag-linked and the Stone Portal as allowing restricted cargo on departure. Verify the actual pair in your 1.0.21-or-later world; a linked pair does not mean identical cargo rules in both directions.

Why can I go out with ore but not return?

Under standard rules, the source reports that the departure portal controls the exception. If you departed from a Stone Portal and return by entering a wooden portal, the return leg can be refused.

Do portal labels ignore capitalization?

The cited community references describe tags as case-sensitive. Compare the exact entered tags and test with a unique label; do not rely only on the map marker’s appearance.

Is the portal checker an in-game test?

No. It applies the selected reference rules to your stated world setting and endpoint types; it cannot inspect your save, mods, server or item inventory.

Sources & revision notes

Editorial revision: November 5, 2026; not a gameplay test date. The reference notes identify source limits and version differences.

  1. Valheim: 1.0 Has Arrived! (official patch notes) (Official)

    Iron Gate’s September 9, 2026 release notes establish the 1.0 content baseline, including the Deep North and many new mechanics. They do not enumerate the portal rules used in this article.

  2. Valheim Wiki: Portal (community reference) (Community)

    Community game-data reference consulted November 5, 2026 for portal tags, linking behavior and wooden-portal item restrictions. Check the installed game and exact item status.

  3. Valheim Wiki: World mechanics (community reference) (Community)

    Unofficial wiki page read November 5, 2026; it identifies Valheim 1.0.21 data and summarizes portal modifiers and travel. Not an official developer document or GamerWin gameplay test.

  4. Valheim Database: Portal – Stone (community reference) (Community)

    Unofficial database page read November 5, 2026; it labels data version 1.0.20 and says the departure portal determines the item exception. Version differs by patch from the wiki snapshot; verify your installed build.

What changed in this revision

First publication: separated link/tag troubleshooting from cargo refusal and documented why a mixed Stone/wood pair may behave differently on the return leg. Added a local-input checker; it does not read or upload a save.

How we research and correct guides

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