Carrier Route Targeter
Select Charleston 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 Charleston.
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 Charleston, SC:
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 Charleston 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 Charleston, SC
Industrial equipment, sustainable materials, and rigorous quality inspection on every order:
USPS Saturation Coverage Across Charleston, SC
Our custom door hangers are ideal for canvassing neighborhoods in Charleston where you are currently completing service work. Hanging promotional vouchers on surrounding doorknobs multiplies your local presence.
Heavy 16pt Cardstocks & Certified Postal Indicia
Marketing your local business in Charleston, South Carolina requires reaching active customers where they make buying decisions every day: at their own front mailbox. Every Door Direct Mail® (EDDM) from Postcard EDDM enables you to saturate entire neighborhood postal routes in Charleston without the expense of purchasing a residential mailing list.
Fast Print Turnaround & Direct Post Office Drop
Custom vinyl window decals and storefront lettering fabricated for Charleston retailers draw foot traffic while displaying store hours and branding with professional elegance.
3D Interactive Preflight & Address Verification
Financial advisors, CPAs, and insurance agencies in Charleston establish lasting community trust by mailing educational tax planning checklists and retirement roadmap guides to affluent carrier routes in Charleston.
Full-Service Postal Bundling, Facing Slips & Form 3587
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.
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 Charleston.
Frequently Asked Questions in Charleston, SC
Everything you need to know about specs, turnarounds, and commercial press quality:
Can I see a proof before my Charleston postcards are printed?
Absolutely. Every order includes an interactive 3D digital proof and automated preflight inspection to ensure bleed margins, postal safe areas, and CMYK color profiles are 100% press-ready before production.
Do I need to buy a mailing list to send postcards in Charleston?
No! That is the primary advantage of Every Door Direct Mail. You do not purchase names or addresses. Instead, you select postal routes in Charleston, and the postal carrier delivers your postcard to every single address along that route.
Can I filter out apartments and businesses in Charleston?
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 Charleston.
What postcard sizes are approved by the USPS for EDDM in Charleston?
USPS requires EDDM mailers to meet specific 'flat' criteria: longer than 10.5" OR taller than 6.125" OR thicker than 0.25". Our most popular USPS-compliant sizes for Charleston campaigns are 6.5" x 9", 6.25" x 11", and 8.5" x 11" jumbo mailers.
More South Carolina Direct Mail & EDDM Locations
Direct commercial courier and ground dispatch to neighboring hubs throughout South Carolina: