How to Frame a Poster: From Shipping Tube to Wall

Here's a number that surprises most poster buyers: a mid-range custom framing job for a single 16×20 print runs about $460 (LatestCost, 2025) — often eight times the price of the art inside it. The good news? You almost never need custom framing for a poster. We ship rolled prints in tubes every day, and the questions that land in our inbox are always the same: how do I flatten it, what frame fits, and do I really need glass? This guide covers how to frame a poster properly, step by step, from the moment the tube arrives to the moment the print is on your wall.

Should You Flatten a Poster Before Framing?

Yes — always. A poster that's lived in a shipping tube holds memory in the paper, and framing it curled leads to bowing and corner lift inside the frame. Framers call this "tube memory," and removing it takes one or two days, not special equipment.

The method that works without damaging the print:

1. Unroll on a clean, dry surface. Wash your hands first — matte paper forgives fingerprints better than gloss, but oils are oils.
2. Reverse-roll it loosely. Roll the poster the opposite way, image facing in, no tighter than the original tube. Hold for one minute.
3. Press under weight for 24–48 hours. Lay it flat between two clean sheets of paper, then stack books across the full surface — edges included.
4. Check the corners. When they lie flat on their own, it's ready to frame.

Whatever you do, don't iron it, don't steam it, and don't crease it backwards sharply — paper fibers break and the line shows forever.

What Is the Best Way to Frame a Poster?

For standard-size posters, a ready-made frame is the best answer for 9 buyers out of 10. Custom framing typically runs $80–$500 per piece (Thumbtack, 2025), and prices have climbed 6–10% since 2022. A ready-made frame in a standard size does the identical visual job for $20–$60. Custom earns its cost in exactly two cases: odd sizes and genuinely valuable art.

Why is the framing market still growing if ready-made is this cheap? Because art buying keeps growing around it — the global picture frame market hit roughly $10.5 billion in 2023 and is projected to reach $14.7 billion by 2031 at a 5.2% annual rate (Straits Research). More walls, more frames. The trick is simply not overpaying for yours.

What Size Frame Does Your Poster Need?

Match the frame's stated size to the poster's exact printed size — frame sizes describe the artwork they hold, not their outer dimensions. A 16×20 poster takes a 16×20 frame, full stop. The standard US poster sizes all have off-the-shelf frames waiting:

Can't remember which size you ordered, or planning a wall of mixed sizes? Our standard poster sizes guide covers every dimension with room-by-room recommendations.

How Do You Put a Poster in a Frame?

Five minutes of care here decides how the print looks for years. The full sequence, once your poster is flat:

1. Clean the glass on both sides and let it dry completely. Dust sealed inside the frame is the #1 amateur tell.
2. Decide on a mat. A mat adds a border and keeps the print off the glazing — useful for gloss prints, optional for matte. No mat gives the edge-to-edge "poster shop" look.
3. Position the print, never glue it. If it needs securing, use two small pieces of acid-free hinge tape at the top edge only. Tape on all four sides causes ripples when humidity changes; glue is permanent damage.
4. Choose your glazing. Glass is scratch-resistant and cheap up to ~18×24. Above that, acrylic wins: it's roughly half the weight, doesn't shatter, and modern UV-filtering acrylic protects colors just as well.
5. Seal and hang. Close the backing points, add the hanging wire or use the frame's sawtooth, and hang at 57–60 inches to center — the same gallery eye-line we use for every layout.

That's genuinely all there is to it. So why do framing guides run 3,000 words? Mostly to justify the custom quote at the end. A standard-size matte poster, a ready-made frame, and ten careful minutes produce a result most visitors can't tell from a $300 job.

When Should You Skip the Frame Entirely?

Frames aren't the only legitimate finish — and for some looks, they're the wrong one. Skip the frame when the style calls for it:

• Poster rails (top + bottom wood strips): the Scandinavian look. $15–$30, reusable across prints, and the poster stays swappable in seconds.
• Renter walls: adhesive strips on a foam-board-mounted print — zero holes, full coverage.
• Rotating collections: a picture ledge lets you lean and swap framed and unframed prints freely — our gallery wall layout guide covers ledge spacing.
• Deck art and statement formats: some artwork is designed to hang raw — see our skateboard wall art guide for the triptych approach where the frame is optional by design.

Frequently Asked Questions

What is the best way to frame posters?

For standard sizes, a ready-made frame ($20–$60) with acrylic glazing is the best value — custom framing averages $80–$500 per piece (Thumbtack, 2025) and only pays off for odd sizes or valuable art. Flatten the poster first, skip the glue, and use hinge tape if it needs securing.

Should I flatten posters before framing?

Yes. A tube-shipped poster framed while curled will bow and lift at the corners inside the frame. Reverse-roll it loosely, then press it flat under books for 24–48 hours. Heavier paper like 230GSM matte flattens faster and stays flat better than thin promotional stock.

Can I put a 16x20 poster in a frame?

Yes — 16×20 is one of the most common frame sizes sold, available off the shelf at virtually every frame retailer. Buy the frame labeled 16×20 (frame sizes describe the art they hold). Going custom for the same size averages around $460 (LatestCost, 2025), so ready-made is the clear value.

How do I put a poster in a frame?

Clean the glazing, lay the flattened poster on the backing board, secure with acid-free hinge tape at the top edge only (never glue, never four-sided tape), close the backing, and hang at 57–60 inches to center. The whole job takes about ten minutes once the poster is flat.

The Short Version

• Flatten first: reverse-roll, then 24–48 hours under weight.
• Standard sizes take ready-made frames — save the $460 custom quote for odd sizes.
• Hinge tape at the top edge; acrylic over glass above 18×24.
• Rails, ledges, and strips are legitimate frame-free finishes.

Now that the framing part is solved, the harder question is what goes inside. Browse the newest wall art and poster prints — every print ships rolled in a crush-resistant tube on 230GSM museum-grade matte, ready for exactly the process above.