A1 vs A2 Folded Wall Planners: Which Size Should You Choose?

A size guide to A1 and A2 dimensions, readability, writing space and wall space, for planners that are posted, handed out or tucked into a magazine.

Most decisions about wall planner size are made standing in front of the wall. Someone measures the gap beside the whiteboard, pictures the year mapped out across it, and orders whatever fits. A folded wall planner breaks that habit. It is chosen by one business and pinned up by someone else, in a site office, a surgery back room, a home study, a stockroom, on walls the sender will never see and cannot measure.

That is what makes A1 vs A2 folded wall planners a more interesting comparison than a lookup of paper sizes. For this folded-wall-planner format, both A1 and A2 finish at A4, small enough to slip into a mailer or a magazine. The difference only shows once the planner is opened out and asked to earn a wall for twelve months: one gives a commanding, room-readable year; the other fits more walls.

Below is what each size actually changes, so the decision rests on how the planner will be used rather than on which number sounds bigger.

A1 vs A2 Folded Wall Planner Dimensions, Side by Side

Both formats belong to the ISO 216 A-series, in which each size is exactly half the one above it. That single rule explains most of what follows: an A1 sheet has twice the area of an A2, but it is not twice as wide or twice as tall. Here is how the two folded wall planners compare once opened out.

The figure worth remembering is roughly 1.4. Every side of an A1 is about 41% longer than the matching side of an A2. Double the area, but only 1.4 times the scale, and scale is what governs how large a date, a heading or a logo can be.

The Short Version

Choose A1 if the planner will be viewed from across a room, regularly written on, or shared by several people.

Choose A2 if wall space is uncertain, the planner will be read from close range, or it is being distributed to a broad customer base.

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Readability and Viewing Distance

Readability depends on type size, contrast and lighting, but paper size sets the ceiling. Enlarge the same layout from A2 to A1 and every number and month name grows by around 1.4. Since legibility broadly scales with character height, the A1 version can be read from noticeably further away.

That matters for an office wall planner consulted from desks across a room. An A2 planner works best at closer range, beside a desk, at a reception counter, in a small office.

Writing Space and Date Box Size

For a year-at-a-glance layout, information density is where the two sizes separate most clearly. Because A1 provides twice the printed area, the same calendar architecture can give each date substantially more room for writing than its A2 equivalent. The exact date box size will always depend on the layout itself, orientation, margins, header, branding and any notes areas, but the proportional advantage holds.

In practice, a smaller box suits a short code, a coloured dot or a set of initials, while a larger one starts to hold a word or two, a site name, a client, a delivery. If recipients will track holidays, shifts or bookings in pen, that extra planner writing space is not a luxury.

Branding Room Without Squeezing the Calendar

A promotional planner has two jobs: being useful, and quietly reminding the recipient who sent it. On A2, every millimetre given to a logo or contact details comes out of the calendar grid. On A1, a confident branding strip fits while the date grid stays generous. A2 rewards restraint, one clear logo and one route to contact.

A2 is the format to favour when the recipients' walls are an unknown quantity. Not every customer has a large, clear stretch of plaster. Home-based clients, small retailers, clinics, and offices with glass partitions or shelving often have only narrow spaces between windows, doors and noticeboards. A 59 cm wide planner slips into those gaps; an 84 cm one may simply stay in its envelope.

A2 also suits recipients who mainly need a reference, the year's dates, bank holidays, who to call, rather than a working planning board. As a wall planner for small spaces, it is the safer bet.

When an A1 Folded Wall Planner Earns Its Wall Space

A1 makes most sense when the planner is meant to be worked on rather than merely consulted. Operations teams, trades, project managers and schools running rotas, leave or delivery schedules tend to want a large wall planner they can annotate all year. How a business maps its whole year onto one sheet is a subject in its own right, covered in our guide to using a folded wall planner to show an entire business year at a glance.

It is also the stronger choice when you know the audience. If your customers work from depots, workshops or open-plan offices, a large format planner is more likely to find a home, and to be seen by everyone who walks past, which is the point of putting your name on it.

Distance, Density and Distribution: The Three Things That Should Decide Your Size

Every point above comes back to three questions. There is no universal formula for the best size for a wall planner, but answering these first makes the choice far less arbitrary, and they work in this order, because each one narrows the next.

1. Distance, how far away will it be read? A planner consulted from across a room, or glanced at on the way past, needs the larger type and grid that A1 makes possible. One that hangs within arm's reach of a desk or counter can be read comfortably at A2.
2. Density, how much information and writing needs to fit? Bank holidays, school terms, project phases, rotas and handwritten entries all compete for the same date boxes. The more a planner is expected to carry, the more the extra area of A1 pays for itself. A lightly used reference calendar rarely needs it.
3. Distribution, how much do you know about the recipient's wall? This is the question unique to folded planners. A targeted list of customers with large workspaces can take A1 with confidence. A broad mailing, a magazine insert or an event giveaway lands on walls you cannot predict, and A2 fits more of them.

When distance and density both point to A1, choose A1, unless distribution says you genuinely don't know where it will hang. In that case, A2 is the size most likely to end up on a wall rather than in a drawer.

Both formats finish at A4, but they get there differently. A1 is concertina folded and then folded in half, while A2 is cross folded. This means the two formats have different panel structures when opened, even though their final folded footprint is the same.

For the size decision, the important point is simpler: A1 gives you twice the unfolded area without becoming larger to distribute. The trade-off is that it creates a larger wall footprint once opened. How fold lines, panels and the outward-facing side shape the artwork is covered separately in our guide to designing a folded wall planner when the finished product folds to A4.

Whichever size you choose, artwork should be prepared at the full unfolded A1 or A2 size rather than designed as an A4 document and enlarged later. Because the two formats share the same A-series proportions, the overall design can scale between them, but small type and dense calendar grids should always be checked at actual printed size. The full artwork requirements and specifications are listed on the product page.

Matching the Format to the Recipient

When a Folded Wall Planner Isn't the Best Format

Sometimes neither A1 nor A2 folded is the right tool. If the planner is for your own office and won't be posted, flat-delivered wall planners avoid fold lines altogether. Recipients who work mainly at a desk may get more daily use from desk calendars, while a month-to-view wall calendar or branded promotional calendars suit audiences who prefer a page-a-month rhythm to a single year-at-a-glance grid. The full wall planners and calendars range sets these formats side by side.

A1 vs A2 Wall Planner Questions, Answered

What are the dimensions of an A1 wall planner?

An A1 wall planner measures 594 × 841 mm, roughly 84 cm wide by 59 cm tall hung landscape. That is about half a square metre of printed area, double an A2, enough for a year-at-a-glance grid with generous date boxes and a branding strip.

What size is an A2 wall planner?

An A2 wall planner measures 420 × 594 mm, roughly 59 cm wide by 42 cm tall in landscape. At around a quarter of a square metre, it fits narrower walls and works best where it is read from a desk or a few steps away.

Is A1 twice the size of A2?

In area, yes, an A1 sheet is exactly double an A2. In length, no: each side is only about 1.4 times longer. That means text, logos and date boxes on an enlarged layout grow by around 1.4 in each direction, not twice as large.

What size wall planner do I need for an office?

For a shared office wall that people read from across the room and annotate as a team, A1 is usually the more practical choice. For a single desk, a small office or a reception area, A2 tends to be enough and is far easier to find space for.

Do A1 and A2 folded wall planners fold to the same size?

In this folded format, yes, both finish at A4, 210 × 297 mm. The A1 is concertina folded and then folded in half, while the A2 is cross folded. Either size fits an A4 mailer, slips inside a magazine or can be handed out at an event.

Can the same design work for A1 and A2?

Often, yes. A1 and A2 share the same proportions, so the overall composition can be adapted without changing its shape. However, the smaller A2 format gives you less physical space for type, date boxes, notes and branding. A design that is comfortable at A1 may need simplification before it works equally well at A2.

Which size is better for direct mail?

Both fold to A4, so either posts easily. For a broad mailing where recipients' wall space is unknown, A2 is often the safer choice. A1 suits targeted lists of customers with large workspaces, where a bigger planner has a natural place to hang.