Carrier Route Targeter
Select Castell 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 Castell.
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 Castell, TX:
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 Castell 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 Castell, TX
Industrial equipment, sustainable materials, and rigorous quality inspection on every order:
USPS Saturation Coverage Across Castell, TX
Discover how thousands of business owners across Llano and throughout Texas are driving record revenue with turnkey Every Door Direct Mail and commercial printing from Postcard EDDM.
Heavy 16pt Cardstocks & Certified Postal Indicia
Pool cleaning and maintenance services in Castell can visually verify carrier routes with private in-ground pools to focus their direct mail dollars exclusively on properties that need their exact services.
Fast Print Turnaround & Direct Post Office Drop
Equip your sales team in Castell with premium 16pt business cards featuring liquid metallic foil, raised spot UV, or velvet soft-touch laminate that leave an indelible executive impression.
3D Interactive Preflight & Address Verification
Churches, non-profits, and civic organizations in Castell welcome new community residents, invite neighbors to seasonal holiday services, and rally support for charity fundraisers through cost-effective saturation mailings.
Full-Service Postal Bundling, Facing Slips & Form 3587
Direct mail postcards enjoy a physical lifespan in Castell homes averaging 17 days, meaning family members and visiting guests frequently interact with your card multiple times over several weeks.
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 Castell.
Frequently Asked Questions in Castell, TX
Everything you need to know about specs, turnarounds, and commercial press quality:
Is there a minimum order quantity for an EDDM campaign in Castell?
USPS requires a minimum of 200 postcards (or one full carrier route) per day, up to a maximum of 5,000 cards per day per zip code without an active postal permit. Most Castell business campaigns start between 1,000 and 5,000 homes.
How long does printing and delivery take for Castell mail drops?
Commercial printing takes 2 to 4 business days. Once printed and bundled, standard USPS delivery to Castell mailboxes takes an additional 2 to 4 business days, meaning your campaign can drop within 5 to 8 business days from final proof approval.
What postcard sizes are approved by the USPS for EDDM in Castell?
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 Castell campaigns are 6.5" x 9", 6.25" x 11", and 8.5" x 11" jumbo mailers.
Can I see a proof before my Castell 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.
More Texas Direct Mail & EDDM Locations
Direct commercial courier and ground dispatch to neighboring hubs throughout Texas: