Why I Always Start a Poster with a Grid

The Blank Canvas Trap

Every designer knows the feeling: a white A2 document open, cursor blinking, no idea where to start. The mistake most people make is reaching for a typeface or dropping in the hero image first. I did that for years, and the results were always the same — something that looked assembled rather than designed.

The fix was embarrassingly simple. I start every poster with a grid.

What the Grid Actually Does

A grid isn't a cage. It's a set of relationships built before content arrives. When I'm working on a concert poster or an exhibition announcement, I'll spend the first twenty minutes just defining columns, margins, and a baseline. Nothing else.

That upfront investment pays off in a few ways:

• Decisions become faster. When the type only has three legal horizontal positions, you stop agonizing.
• Hierarchy becomes spatial. Moving an element one column over reads as a deliberate shift in importance.
• Tension becomes intentional. Breaking the grid on one element makes it sing precisely because everything else obeys.

My Default Setup for A-Series Posters

For most print work I start with a 12-column grid at 10mm gutters. Margins I keep generous — usually 18–20mm on all sides for anything going to offset print, more if it's a small run on a digital press with questionable edge-to-edge accuracy.

The baseline grid I set to match the leading of my body text. If body copy runs at 9pt with 13pt leading, my baseline is 13pt. Everything snaps. It sounds mechanical, but in practice it means the poster breathes consistently from top to bottom.

When I Break It

The grid earns its authority from how rarely I violate it. On a recent tour poster I let the band name bleed 40mm into the left margin, crashing out of the grid entirely. It worked because the tour dates, venue list, and support acts all sat rigidly inside the columns. The contrast made the headline feel explosive rather than sloppy.

If everything breaks the grid, nothing does. That's the trap a lot of ambitious posters fall into — they mistake chaos for energy.

Practical Starting Point

If you're new to poster work, start with something even simpler: four columns, 20mm margins, no baseline grid. Get one poster out the door with those constraints. Then do another. By the third one you'll feel exactly where the constraints are helping and where you need more flexibility. Then you can build up toward a 12-column system with confidence.

The grid isn't about making work that looks gridded. It's about making work that looks considered. There's a big difference between the two, and viewers feel it even when they can't name it.