Metal/ACM Signs
Durable metal signs for buildings, job sites, and anywhere signage needs to hold up.
3mm, 6mm, aluminum, or reflective, matched to your project
Ready quickly, without cutting corners.
Durable materials made for long-term outdoor use.
Not sure what you need? We’ll walk you through it.
A proof before anything prints, every single order.
The details behind choosing the right material for your project.
ACM, aluminum composite material, is two thin aluminum sheets bonded to a solid plastic core. You may also hear it called sandwich board or aluminum sandwich board, since the plastic core sits sandwiched between the two aluminum layers. It’s lighter than solid aluminum and more affordable, making it the right choice for most general signage. 3mm is our standard thickness, suited for most applications. 6mm is thicker and more rigid, worth choosing for larger signs or anywhere extra durability matters.
Solid aluminum signs are heavier and more rigid than ACM, commonly used for parking signs, official signage, and anywhere maximum durability is the priority.
Our reflective option adds a reflective vinyl layer to ACM material, built for visibility in low light or at night, common for parking lots, job sites, and safety signage where a sign needs to be seen after dark.
Send us your specs, size, and material. We'll reach out if we have any questions.
Review your quote, approve it, and pay your deposit to get started.
We'll send a proof before anything prints, so we're both on the same page.
Takes just a few minutes, and we’ll follow up fast.
Please include any special instructions for your project. If you need additional services, please contact us at (205) 963-7748 or email us at ldi@ldiproprinting.com.
Metal and ACM signs often go up permanently, so the design needs to hold up visually for years, not just look good on day one. Bold contrast and clean layout matter more here than intricate detail that fades from view at a distance.
Vector files, like AI, EPS, or PDF, print sharpest for text and logos. High-resolution images work too, as long as they’re built at full size from the start. If you designed in Canva, we can work with that too, just share the link with us instead of downloading it yourself.
Bleed matters here, extend your background color or image slightly past the edge so nothing leaves a white gap once it’s trimmed to size.
Don’t have a print-ready file? That’s fine. Upload what you have, logos, photos, an existing design, and we’ll build it into something that holds up for years, not just the first season. If you have any questions along the way, call, text, or email us.
Most metal sign orders are ready within 48 hours, depending on quantity. Larger orders take longer to produce. Contact us for a specific timeline based on your project.
Need it sooner? Call our office at 205-963-7748 and we’ll see what’s possible.
A sign that fails outdoors doesn’t fail quietly, it fades, warps, or falls apart in front of everyone who drives past it. We build these to actually survive Birmingham weather, not just look good the day it goes up.
Summers here aren’t gentle on anything left outside, and metal signage takes the worst of it, direct sun for months straight, then a thunderstorm that shows up out of nowhere. A sign that’s the wrong material for the job shows its age fast, curling edges, fading color, a warp that wasn’t there six months ago.
We’ve had customers come to us after ordering the wrong thickness somewhere else, a sign that looked fine in the shop and started bowing within a season once it was actually installed. That’s not a design problem, it’s a material problem, and it’s the kind of thing you only learn once it’s already hanging on your building.
Job sites, parking lots, storefronts, whatever’s going up, we ask what it’s actually facing before we quote it. Full sun all day is different from partial shade. A sign near traffic gets more abuse than one tucked against a wall. Small details, but they’re the difference between a sign that’s still sharp in three years and one that’s an embarrassment by next summer.
indow facing the street is free real estate you’re already paying rent on, whether you use it or not. We’ve watched businesses treat that space as an afterthought, a taped-up flyer, a faded sticker nobody’s replaced in two years, a hand-written sign that’s been there since before the pandemic. Meanwhile the shop next door has clean, sharp branding on their glass and gets noticed by everyone who walks by. Windows are a strange kind of advertising, they work on people who never even glance at your website or your social media. Someone walking to their car, someone waiting at the light next to your storefront, someone who’s never heard of you until that exact moment. That’s an audience most marketing never reaches. We print for storefronts all over Birmingham, and the difference between a window that gets noticed and one that gets ignored usually comes down to whether someone actually put thought into it. We do.3mm is our standard thickness, suited for most general signage. 6mm is thicker and more rigid, better for larger signs or anywhere extra durability is needed.
Yes, ACM is often called sandwich board or aluminum sandwich board, since a solid plastic core sits sandwiched between two thin aluminum sheets.
Solid aluminum is heavier and more rigid, a good choice for parking signs, official signage, or anywhere maximum durability matters more than weight or cost.
It depends on the environment, but typical expectations are 3 to 5 years for outdoor use.
Yes, our Reflective ACM Sign adds a reflective vinyl layer, built for visibility in low light or at night.
Our largest standard offering is 4' x 8'. Contact us if your project needs something bigger.
Use the form above to get started, or call us directly if you'd rather talk through your options first.
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