Traxio.uk Forum hosting · 30 days free

Guide

Categories, boards and permissions: a structure that works

The board list is the first thing a visitor sees and the thing new owners most often overbuild. Here is how to structure a forum so it looks alive on day one, and how to control who sees what.

Updated September 2026 · About a 3-minute read · Written by Traxio

Start small on purpose

New owners build the structure they imagine needing in two years: fifteen boards, each with a careful description, each with three posts in it. Visitors see a lot of empty rooms and leave. A small structure concentrates the early conversation so every board looks active.

A good starting structure for almost any subject:

A starter structure for a hobby forum. Rename to fit your community.
CategoryBoardPurpose
Your subjectDiscussionThe core conversation: news, opinions, show-and-tell.
Help & questionsProblems and answers. Often your best source of search traffic.
CommunityGeneral chatOff-topic conversation and introductions.
About this forumAnnouncements & feedbackRules, news from you, and suggestions. Staff start topics; members reply.

When to add a board: when one board has several conversations a day and a clear sub-topic keeps recurring, split that sub-topic out. Splitting a busy board feels like progress to members; merging dead ones feels like retreat.

Naming boards so people post in the right place

  • Use the words your members use. “Help & questions” beats “Technical assistance forum”.
  • Write a one-line description that says what goes there and, if it’s often confused with another board, what doesn’t.
  • Avoid near-duplicates. “General” and “Chat” side by side guarantees misplaced posts.

How permissions work, in one idea

All three packages follow the same idea: members belong to groups, and groups are given permissions, either for the whole forum or for particular boards. You almost never set permissions for an individual; you put the person in the right group.

The groups you’ll use most:

  • Guests: visitors who aren’t logged in (and, in phpBB, a separate Bots group for search engines).
  • New or awaiting-activation members: phpBB’s Newly Registered Users, MyBB’s Awaiting Activation, or a post-count based group in SMF. Useful for anti-spam limits.
  • Registered members: the everyday permissions.
  • Moderators (per board or global) and administrators.
  • Custom groups you create: a committee, a paid supporters’ group, a team.

Common set-ups, and how to build them

A public forum with a members-only board

Leave most boards readable by guests. For the private board, remove viewing permission for Guests (and Bots in phpBB). Members see it as soon as they register and log in.

A staff or committee board

Create a custom group, add the right people, and make the board visible only to that group plus administrators. In SMF, set this in the board’s own settings; in phpBB and MyBB, set it in the board’s group permissions.

An announcements board members can reply to but not start topics in

Give Registered members reply-only access to that board. SMF has a ready-made “reply only” permission profile; phpBB and MyBB let you untick “can start new topics” for the group on that board.

Where it lives in each package

Menu names from phpBB 3.3, MyBB 1.8 and SMF 2.1.
TaskphpBBMyBBSMF
Create boardsForums › Manage forumsForums & Posts › Forum ManagementForum › Boards
GroupsUsers and Groups › Manage groupsUsers & Groups › GroupsMembers › Membergroups
Board accessPermissions › Group forum permissions (use roles)The board’s Permissions tabThe board’s settings, plus permission profiles

Always test as someone else

Permission mistakes are invisible to administrators, because administrators can see everything. After any change, check the forum logged out (as a guest) and with a test member account. phpBB also has a “view permissions” tool in its ACP that shows what a particular user or group can actually do.

Common questions

How many boards should a new forum have?

Three or four. One or two for your core subject, one general or off-topic board, and one for announcements and feedback. Add more when an existing board gets busy enough to split.

Should guests be able to read the forum?

Usually yes, for most boards. Public boards are how search engines and new members find you. Keep members-only or private areas for the things that genuinely need them.

What’s the difference between a category and a board?

A category is a heading that groups boards; members don’t post in it directly. A board holds the topics. In phpBB both are called “forums”, with a type setting that makes one a category.

Start your forum free for 30 days

Real hosting for MyBB, phpBB or SMF on a domain you own. £0.99 a month after the trial, and nothing is charged automatically.

Start your forum free Plan my set-up

Free for 30 days with no card details required. Then £0.99/month if you choose to continue.