Overview
LettrLabs’ 11" x 18" printed postcards are designed for bold visual storytelling and folded delivery. Designed with three vertical panels, they give you room to organize messaging into digestible sections. Whether you’re explaining a product, announcing an event, or walking through a service workflow, this format gives your content structure and visual clarity. This guide outlines everything you need to prepare your artwork — from exact dimensions to design-safe zones and postal requirements.
Typical Use Cases
- Product Showcases: Feature products or services in each panel to tell a clear story.
- Step-by-Step Guides: Great for how-it-works walkthroughs or onboarding sequences.
- Event Promotions: Share event info, speaker lineups, and include QR codes or RSVP links.
- Menu or Service List: Ideal for restaurants, salons, or local contractors.
- Direct Response Offers: Include a call-to-action panel with a coupon code or tear-off incentive.
Design Dimensions
These are the precise layout specs to ensure your design prints perfectly without anything getting trimmed or misaligned.


Product Specs
Quick Reference
11" x 18" Trifold Printed Postcard
Full Bleed Size: 11.2” x 18.2”
Trim Zone: 11” x 18”
Safe Zone: 10.7” x 17.7”
Download the Design Template
Click below to access the Canva template for this trifold postcard. It includes pre-set fold lines, trim zones, and safe area guides — so you can design confidently without starting from scratch.

Need Help?
Have questions about setting up your design or making sure it meets mailing guidelines? Contact our team — we’re happy to point you in the right direction.