A1 A2 A3 Poster Size Guide: Dimensions Chart, Uses & Paper Choices | ZprintPro
Choosing between A1, A2 and A3 poster sizes can be confusing — print too small and it disappears at a distance, too large and you burn budget. This guide covers exact dimensions in mm, cm and inches, best use cases for retail, trade shows and outdoor, plus paper and waterproof finish options, with 4 FAQs for print buyers ordering 10-1,000 piece runs.
1. A1 / A2 / A3 Standard Size Chart
- A3: 297 × 420 mm (11.7 × 16.5 in) — two A4 sheets; countertop displays, small windows, menu boards
- A2: 420 × 594 mm (16.5 × 23.4 in) — four A4 sheets; shop windows, booth displays, meeting room visuals
- A1: 594 × 841 mm (23.4 × 33.1 in) — eight A4 sheets; outdoor light boxes, station posters, event backdrops
- Rule of thumb: each A-series step up doubles the area — A3, A2, A1 equal 2x, 4x, 8x A4
2. Choosing a Size by Use Case
- Retail windows / in-store promo: A2 works best, readable from 3-5 m, pairs with floor stands
- Trade shows / conferences: A1 wall prints or A-frames pull attention from 5-8 m
- Outdoor light boxes / bus stops: A1 and up, always with waterproof PP film or matte lamination
- Countertop mini posters: A3 keeps cost lowest for menu specials and new launches
3. Paper & Waterproof Finishes
- Art paper (gloss / matte): 157-250 gsm, vivid color indoors, matte reduces glare under lights
- Waterproof PP film: wipeable, best for long-term windows and short outdoor runs
- Synthetic paper / matte laminate: tear-resistant, survives 2-3 show cycles
- Outdoor canvas: premium feel for event backdrops and signing walls
- Finishing: UV spot varnish for logos, gloss/matte lamination, grommet holes for hanging
4. Ordering Process & Turnaround
- Submit print-ready PDF/X-1a with 3 mm bleed, or use free design service
- Choose size, paper, finish and quantity — 30-second AI quote
- Digital proof to confirm color (RGB screen vs CMYK print)
- Production: 10-1,000 piece runs, standard 3-5 business days
- DHL Express 2-4 day worldwide delivery from Asia factory
Related: Poster Printing Category · A1 Posters · A2 Posters · Outdoor Waterproof Posters · Complete Poster Printing Guide
Q: What are the exact A2 poster dimensions?
A: A2 is 420 × 594 mm (16.5 × 23.4 in), roughly four A4 sheets — the most common size for retail windows and trade show booths.
Q: Should I choose A3 or A2 for my poster?
A: Use A3 for reading within 3 m (countertops, small windows); A2 for 3-5 m viewing (large windows, booths). A2 costs about 30-50% more than A3.
Q: Do outdoor posters need special treatment?
A: Yes — choose waterproof PP film or matte lamination with UV-resistant ink. Short outdoor runs last 2-4 weeks; permanent light boxes need synthetic paper or canvas.
Q: What is the minimum order for posters?
A: ZprintPro starts at 10 pieces. Digital printing suits 10-300 piece rush runs; 300+ pieces switch to offset for 40%+ lower unit cost.
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