Carrier Route Targeter
Select Saint Charles carrier routes with live household counts, demographic filters, and USPS postage calculation.
Upload EDDM Artwork
Instant preflight check for USPS postal dimensions, address blocks, and certified postal indicia.
EDDM Design Templates
Proven saturation mail layouts for contractors, dentists, restaurants, and realtors across Saint Charles.
Print, Bundle & Mail
We print on heavy 16pt cardstock, bundle into 100-packs with facing slips, and ship direct to your local post office.
USPS-Approved EDDM Postcard Dimensions & Specs
Engineered to meet strict postal sorting automation standards across Saint Charles, MO:
6.5" x 9" Standard Postcard
USPS Flat Approved • High Impact
Our most popular size nationwide. Ample canvas for large promotions and menus while maximizing postage savings.
6.25" x 11" Oversized Mailer
Long Form • Mailbox Standout
Towering horizontal format that commands recipient attention when pulled from a crowded Saint Charles mailbox.
8.5" x 11" Jumbo Full-Page
Mini-Catalog Presentation
Full magazine-page size. Unfold multi-product sales promotions, medical service menus, or home remodeling guides.
16pt Ultra-Thick Cardstock
Premium Heavyweight Board
Rigid, professional cardstock engineered to resist dog-earing and curling during high-speed automated postal processing.
High-Gloss UV Shield
Liquid UV Protective Barrier
Liquid coating cured under ultraviolet lamps, protecting your artwork against scuffs, moisture, and postal machine belts.
100-Pack Postal Bundling
Facing Slips & Form 3587 Included
Every order is count-verified, precision cross-strapped into 100-packs, labeled with facing slips, and ready for drop-off.
Commercial Printing Standards for Saint Charles, MO
Industrial equipment, sustainable materials, and rigorous quality inspection on every order:
USPS Saturation Coverage Across Saint Charles, MO
Our digital die-cutting capabilities allow Saint Charles brands to produce custom-shaped stickers, product labels, and packaging seals in low-minimum quantities with rapid turnaround.
Heavy 16pt Cardstocks & Certified Postal Indicia
Every print job submitted through our platform comes with a complimentary 3D digital proof, allowing you to rotate, inspect, and approve your artwork from every angle before production begins.
Fast Print Turnaround & Direct Post Office Drop
A successful direct mail campaign in Saint Charles, Missouri combines three essential elements: an irresistible local offer, a compelling call to action, and clear contact information with local phone numbers.
3D Interactive Preflight & Address Verification
Our high-gloss UV coating acts as an armor shield for your postcards, protecting them against scuffs, moisture, and postal automated sorting equipment as they journey through the St. Charles postal processing facility.
Full-Service Postal Bundling, Facing Slips & Form 3587
If your Saint Charles enterprise serves homeowners, EDDM allows you to selectively filter out apartment complexes and business addresses, ensuring your postcards reach owner-occupied houses with higher discretionary income and home equity.
Seamless 3-Step Production Workflow
From digital canvas to press-cured finish in 24 to 48 hours:
Select or Upload Design
Pick from 1,000+ templates, generate with AI in 30 seconds, or upload your print-ready PDF/vector artwork.
Interactive 3D Proof
Inspect trim boundaries, bleed margins, and paper finish in realistic 360° before sending your files to press.
Fast Press & Direct Delivery
Printed on commercial Heidelberg offset presses with rapid 24-48h turnaround and express delivery to Saint Charles.
Frequently Asked Questions in Saint Charles, MO
Everything you need to know about specs, turnarounds, and commercial press quality:
Does Postcard EDDM handle the postal paperwork and bundling for Saint Charles?
Yes! We offer full-service fulfillment. We print your cards on heavy 16pt cardstock, bundle them into required 100-piece stacks with facing slips, prepare USPS Form 3587, and can even ship directly to your local Saint Charles post office.
How long does printing and delivery take for Saint Charles mail drops?
Commercial printing takes 2 to 4 business days. Once printed and bundled, standard USPS delivery to Saint Charles mailboxes takes an additional 2 to 4 business days, meaning your campaign can drop within 5 to 8 business days from final proof approval.
Can I filter out apartments and businesses in Saint Charles?
Yes. Our interactive mapping tool allows you to select residential-only delivery, effectively filtering out commercial business boxes and apartment complexes if you are targeting homeowners in Saint Charles.
What paper stock do you use for postcards mailed in Saint Charles?
We print on heavy 16pt commercial cardstock (or 14pt upon request) with your choice of high-gloss UV coating for vibrant color protection or silk matte finish for an elegant glare-free look.
More Missouri Direct Mail & EDDM Locations
Direct commercial courier and ground dispatch to neighboring hubs throughout Missouri: