27x40 movie poster frames

27x40 is the modern American one-sheet — the standard cinema poster size since the mid-1980s. It is one of the few large frame sizes that is genuinely easy to buy, because the film industry standardised it and an entire display industry grew up around it.

The size, and the one before it

Current standard: 27 x 40 inches, 68.6 x 101.6 cm.

Pre-1985 standard: 27 x 41 inches.

That single inch is the most consequential detail on this page. A poster printed before the changeover will not fit a 27x40 frame, and there is no acceptable way to make it — trimming an inch off a vintage one-sheet removes most of its collectible value and is visible for the rest of its life.

If you have an older poster, buy a 27x41 frame. They are made, though they need seeking out, and framing shops will chop one to size without difficulty.

The other sizes posters actually come in

"Movie poster" covers several formats, and they are not interchangeable.

The 22.375 x 34 size deserves special mention because it catches so many people. It is not a film industry size at all — it is a retail poster size chosen to fit standard shipping tubes, and it appears constantly on posters sold through general retailers. It fits nothing exactly. A 24x36 frame with a mat cut to 22.375 x 34 is the standard solution.

Measure your poster before buying any frame. This is the size range where the advertised dimension and the printed dimension diverge most often.

Weight, and why acrylic wins

At 27x40 the glazing is the dominant weight.

Five pounds of difference, hanging on a wall, usually above furniture where people sit. There is no serious argument for glass here unless the poster is genuinely valuable and the wall fixing goes into structure.

Acrylic also survives handling. Loading a 27x40 frame means holding a large sheet at arm's length while manoeuvring it into a rabbet — glass flexes alarmingly at this size and breaks into pieces large enough to be dangerous.

Snap frames and lightboxes

Two poster-specific frame types exist that ordinary picture framing does not have.

Snap frames have four hinged aluminium edges. Flip them open, lay the poster on the backing behind a clear styrene sheet, snap them shut. Changing a poster takes fifteen seconds with the frame still on the wall.

They are what cinemas and retail displays use, they are inexpensive, and they look exactly like what they are. If your poster changes with the seasons or you rotate a collection, they are unambiguously the right tool. If the poster is permanent and the room is not a home cinema, a conventional moulding will look better.

Lightboxes are snap frames with an LED panel behind a translucent backing, so the poster is backlit. They are made for cinema lobbies and they are extremely effective in a dark room. They also need a power supply behind the frame, which is a wiring decision as much as a framing one.

Framing a poster without ruining it

Let it flatten first. A poster shipped rolled will not lie flat straight out of the tube. Unroll it, place it face-down on a clean flat surface, cover it with clean paper and weight it evenly with books for two to seven days. Rushing this step builds a permanent bow into the middle of the poster.

Folded posters need longer, and may need help. Posters from the era when studios shipped them folded will have creases that never fully vanish. For anything valuable, linen backing is the conservation answer: the poster is mounted to a linen support by a specialist, which flattens the folds, stabilises the paper, and is generally considered to preserve rather than reduce value for vintage material. It is not cheap and it is not reversible in a casual sense, so it is a decision for genuinely collectible posters only.

Do not dry-mount. Dry-mounting bonds the poster permanently to a board. For a reprint you will replace, it is fine and gives a perfectly flat result. For anything with any collectible value, it is destructive.

Use a rigid backing. A 27x40 sheet of thin card bows under its own weight and lets the poster wander. Hardboard or a thick foam board keeps it flat.

Hanging one safely

This is a heavy object on a wall.

• Two fixings minimum, spaced about a third of the frame width either side of centre.
• Find a stud if you possibly can. Where you cannot, use toggle bolts or heavy-duty self-drilling anchors rated at least three times the frame's weight — so 45 pounds or better for a 15-pound frame.
• D-rings and wire, not a sawtooth. At this width a sawtooth allows no levelling and concentrates the entire load on one point.
• Height: centre of image at 57 to 60 inches. In portrait orientation the top of a 27x40 lands around 80 inches, which is above most door heads — check the ceiling.
• Bumpers on the bottom rear corners.

The hanging guide covers fixing types by weight in more detail, and large picture frames covers the general engineering of anything above 24x36.

Checking a poster before you buy a frame

Measure both dimensions at two points each, and note which era the poster is from. Anything printed before the mid-1980s is likely to be 27x41 and will not fit a 27x40 frame.