Letter Board A2 vs Architect Numbers 100mm: Sizing Explained
By Design Letters – Design Letters EUR | Published: 2026-11-05
Category: Comparisons
Compare the A2 letter board with 100mm Architect Numbers: A2 sizing, number height, mounting tape, indoor/outdoor use, and which fits your wall or table.
Quick answer
Choose the Letter Board A2 if you want a complete, changeable message board for a kitchen, hallway, or office. Choose Architect Numbers 100mm if you want permanent, weather-ready aluminum numbers for a door, mailbox, or exterior wall. They solve different jobs, so the right pick depends on whether you need a reusable board or fixed signage.
What the A2 size means for your wall or table
A2 is a paper-standard size, so the Letter Board A2 gives you a generous canvas without dominating a normal wall. That matters because letter boards work best when they have breathing room around the text; a crowded board looks busy rather than graphic.
The board can hang on the wall or lean on a table against the wall, so you can treat it as fixed wall decor or a flexible counter piece. If you plan to change the message often, keep it at eye level and within arm's reach rather than high on a wall.
How 100mm numbers change the layout
Architect Numbers 100mm are individual aluminum numbers, not board accessories. At 100mm tall, they are large enough to read from a distance and are intended for indoor or outdoor use, including writing a name or number on a wall or facade.
Because they are sold as single numbers, you order only the digits you need. That makes them efficient for a house number or a short label, but they are not a substitute for a full alphabet board: you cannot rearrange them into changing sentences the way you can with a letter board.
Mounting and surface trade-offs
The Letter Board A2 is a self-contained object; you hang it or lean it, and the message changes by rearranging letters on the board. Architect Numbers 100mm need a mounting method, and the supplied Mounting tape is a 3M double-sided option described as water resistant and tolerant of high and low temperatures for indoor and outdoor use.
That tape comes as 48 pads per pack. For a permanent outdoor number installation, surface preparation matters: the catalog notes that the surface should be clean before applying the tape for best durability. If you rent or expect to move the numbers, plan for the adhesive residue that any strong tape can leave.
Trade-offs to weigh before you buy
- Reusable messages vs fixed numbers: The Letter Board A2 wins if your text changes weekly or seasonally, because you rearrange letters on the board. Architect Numbers 100mm win if the message is permanent, such as a house number or name, because each number is a single fixed piece. Decide first whether the text will change; that single answer usually settles the choice.
- Indoor flexibility vs outdoor durability: The A2 board is described for kitchen, hallway, or office use and can lean or hang, so it suits interior styling. Architect Numbers are explicitly suitable for indoor and outdoor use, which makes them the more sensible choice for a facade, gate, or mailbox where weather exposure is expected. For an exterior wall, favor the aluminum numbers and the water-resistant mounting tape.
- Sizing and quantity: A2 gives you one standard board size, so you plan the layout around a fixed canvas. Architect Numbers are sold by number, so you order the exact digits you need at 100mm tall; that is efficient for a short number but means you must calculate quantity yourself. Count your digits before ordering numbers; there is no multi-pack assumption in the catalog.
- Installation effort: The A2 board needs only a hook or a stable lean. Architect Numbers need a clean surface and adhesive pads; the catalog supplies 48 pads per pack and notes that clean surfaces give the best durability. Neither product includes a drill-free guarantee beyond the tape's stated indoor/outdoor tolerance. If you cannot clean or prepare the wall surface, the leaning A2 board is the lower-effort option.
Product facts at a glance
- Architect Numbers 100mm: Architect Numbers 100mm use original Arne Jacobsen vintage typography from 1937 and are wire- and laser-cut aluminum, suitable for indoor and outdoor use. The cut aluminum construction and weather suitability make them a fixed signage choice rather than a craft-room letter.
Architect Numbers 100mm - Letter Board A2: Letter Board A2 is a complete board that can hang on a wall or lean on a table, with sharp-edged letters for a graphic look. It gives you a reusable message surface, so you can change quotes or menus without buying new characters.
Letter Board A2 - Mounting tape: Mounting tape is 3M double-sided tape supplied as 48 pads, water resistant and tolerant of high and low temperatures for indoor and outdoor use. It is the practical companion for fixing Architect Numbers outdoors, provided the surface is clean before application.
Which one fits your space?
Best for
- Kitchens, hallways, and offices where the message changes often
- Renters or decorators who want a movable, leaning display
- Anyone building a graphic wall arrangement with a standard A2 canvas
Not for
- Exterior house numbers or permanent facade signage
- Buyers who want a single fixed number rather than a full alphabet board
- Spaces where no wall or table space is available for a board
