Foamboard, 5mm board, or acrylic? A guide to choosing your wedding sign material
After "what size?" the next question that holds up a checkout cart most often is "what material?" The answer matters more than the size question, because material choice changes both the visual feel of your signage and the overall cost of your suite by a meaningful margin.
Campain offers three materials across our welcome signs and seating charts: 3mm foamboard, 5mm foamboard, and 3mm acrylic. Each has a different look, a different feel, and a different price point. None of them are "the cheap option" - they're all premium signage substrates that print and finish beautifully - but they're suited to different wedding styles and different budgets.
This guide walks through each one, when to choose it, and one specialty process worth knowing about even if you don't think you need it (you probably do).
The three materials at a glance
A quick read of the diagram: the two foamboards differ in thickness only (3mm vs 5mm), and the visual difference is genuinely subtle on the wall, more about feel and weight than appearance. The acrylic is the most visually distinct of the three, with a glossy front face and depth that the foamboards don't have.
3mm foamboard
3mm foamboard is the most popular signage material in the premium wedding industry, for good reason. It's lightweight, holds print beautifully, photographs cleanly, and looks elegant in any setting. The substrate itself is a thin foam core sandwiched between two paper faces, with the print sitting on a smooth, matte front face.
The classic look of 3mm foamboard is what you've seen at most premium weddings on Instagram and Pinterest. It's the workhorse material for welcome signs, seating charts, and bar menus alike. At Campain, all eight of our launch designs are available in 3mm foamboard.
Where 3mm foamboard particularly shines is in a unique process worth knowing about: white ink printed directly onto smooth black foamboard. This is the production method behind our Black Luxury design, and it's a finish you rarely find outside genuinely bespoke print. Most signage printers don't have the equipment to print white ink (most digital printers run CMYK only), and the few who do often produce muddy results when ink meets dark substrate. The white-on-black combination, done correctly, produces a finish that reads as genuinely high-end and is visually impossible to confuse with cheaper alternatives.
If you're drawn to the Black Luxury aesthetic, you're not actually choosing a colour scheme - you're choosing a print process that creates the colour scheme. It's a small but meaningful distinction.
Choose 3mm foamboard when: you want the classic premium wedding signage look, your styling leans soft-romantic or classic rather than modern-sharp, you're ordering the full matching suite (the savings per piece add up), or you're choosing the Black Luxury design specifically.
5mm foamboard
5mm foamboard is the same material as 3mm foamboard - same paper-faced foam core, same smooth matte finish, same print quality - just thicker. The extra 2mm makes the sign feel more substantial in hand, sits more confidently on an easel, and reads as a more deliberate choice when you walk up to it.
The visual difference on a wall photograph is subtle. The tactile and material difference, in person, is more noticeable. Guests don't read "5mm vs 3mm" consciously, but they pick up on the slight extra weight and depth as quality cues.
Choose 5mm foamboard when: you want the foamboard look but with more presence, your venue is larger or more formal, you're investing in fewer but larger pieces rather than a complete suite, or you'd otherwise upgrade to acrylic but prefer the matte finish.
The trade-off is weight. A 5mm A0 sign is noticeably heavier than a 3mm A0 sign. Easels and shipping handle it fine, but if your venue has fragile display arrangements or you're carrying signs yourself between locations, the 3mm option may suit you better.
3mm acrylic
3mm acrylic is a completely different material to foamboard. It's solid, glossy, and modern. The print sits on a transparent or opaque acrylic substrate, producing a finish that catches and reflects light in a way foamboard cannot.
Acrylic photographs strikingly. The reflective quality picks up venue lighting, candle flames, and natural light, lending depth and movement to the sign. In Black Luxury, acrylic shifts the whole feel of the design - you go from considered and quiet to considered and architectural. In our florals (Azure Bloom, Wild Meadow Pink, Dusty Rose), acrylic adds a contemporary edge that contrasts the soft design language beautifully.
A few practical things to know about acrylic:
It's heavier than foamboard. Plan for that with your easel choice and your transport from car to venue.
It's more durable than foamboard but not indestructible. Acrylic can scratch if handled roughly or stacked against hard surfaces. Each acrylic sign ships with protective film on both sides. Leave the film on until you're at the venue ready to display.
It's more expensive than foamboard at every size. Not because the material itself is rare, but because acrylic printing requires specialty equipment, longer production times, and more careful handling. The price difference is real and meaningful, typically 25 to 40% above the equivalent foamboard sign.
Choose acrylic when: your venue is modern (loft, ballroom, garden estate, anything with clean architectural lines), your styling leans contemporary or minimalist, you want the welcome sign to be one of the photographed focal points of your venue shots, or your bridal aesthetic generally favours sharp lines over softness.
Other materials you'll see elsewhere
Outside Campain, you'll encounter a few other signage substrates in the wedding industry. Worth knowing about them briefly:
Linen or fabric. Soft hanging signs printed onto woven fabric, usually with rod pockets at the top for hanging from a frame or arch. Beautiful at outdoor weddings, particularly boho or garden, where rigid signage would feel out of place. We don't currently offer fabric signs as they require a different production process and equipment.
Mirror acrylic. Acrylic with a mirrored reflective face. Looks luxe and dramatic but the reflective nature can wash out depending on venue lighting. A specialty look, often more expensive than standard acrylic.
Metallic or rose gold acrylic. Brushed metallic finishes for couples with particular wedding palettes. Specialty pieces, not standard at most premium signage brands.
PVC or Sintra. Foamed PVC plastic, lighter and more durable than foamboard, more expensive again. Sometimes used for outdoor signage that needs to survive weather.
Cardstock. Lightweight printed card for small signage, menus and place cards. Not suitable for large welcome signs or seating charts where rigidity matters.
At Campain, we settled on 3mm foamboard, 5mm foamboard, and 3mm acrylic as our three materials because they cover 95% of premium wedding signage needs at price points our brides can actually afford. If you have a specific material in mind that isn't on our list, send us a message - we may be able to produce a custom piece.
How to choose, quickly
If you're trying to decide between the three at checkout, here's the cheat sheet:
Choose 3mm foamboard if: you want the classic premium wedding signage look, you're prioritising budget without going cheap, you're ordering the full matching suite (the savings per piece add up), or your aesthetic is romantic-soft rather than modern-sharp.
Choose 5mm foamboard if: you love the foamboard look but want a sign that feels more substantial when guests see it up close, your venue is large or formal enough that the extra thickness adds presence, or you'd otherwise consider acrylic but prefer the matte finish.
Choose 3mm acrylic if: your wedding styling leans contemporary or architectural, you want the welcome sign to be one of the photographed highlights of your day, your venue has modern lines that complement the glossy material, or you're choosing the Black Luxury design (acrylic transforms Black Luxury into something even more architectural).
If you're genuinely torn, the safest default for most weddings is 3mm foamboard. Most brides choose it, it photographs beautifully across styling types, and it never feels cheap - it just feels considered.
One last thing
Whichever material you choose, you'll see a digital proof of your design on that material before we print a thing. You'll know exactly what you're getting. And if you'd like to see a real physical sample of any material before ordering, send us a message - we can usually send a small swatch.
Browse the full range:
If you're not sure which material fits your wedding, send us a message with a brief description of your venue and the styling you're going for, and we'll come back with a specific recommendation.