All Guides
Postcard Paper and Cardstock Guide
Postcard paper weights, cardstock options, and USPS thickness rules. Order postcards on the right stock from 4OVER4 in 2026.
Postcard Sizes: The Complete Guide
Postcard sizes are 3x5, 4x6, 5x7 and 6x9 inches, with 4x6 the standard. USPS bills the postcard rate up to 4.25x6. Every size in mm and pixels at 300 DPI.
Postcards vs Letters: Which Wins Your Campaign?
Postcards vs letters for direct mail compared on open rates, cost and USPS rules, with the smart pick for most campaigns, then print at 4OVER4.
Poster Board Sizes: The Complete Guide
Full US poster board size chart with standard dimensions and mounting options. Order rigid posters and foam core boards at 4OVER4.
Poster Signs vs Rigid Signs for Indoor and Outdoor Use
When to use poster signs vs rigid signs, plus sizes and materials explained. Print large-format posters and signs with fast US shipping from 4OVER4.
Poster Sizes for Walls: The Complete Guide
Standard poster sizes for walls with spacing and placement tips. Order posters or framed prints at 4OVER4.
Principles of Marketing for Small Business
The 4 Ps and 7 Ps explained for small business, each principle paired with the printed collateral that delivers it, then a CTA to order it from 4OVER4.
Print Design Services Explained
What print design services cover, costs, and how 4OVER4's designer helps. Get design help and order flyers or business cards from 4OVER4 in 2026.
Print Finishing Techniques Explained: Foil, Spot UV, Embossing and More
The main print finishing techniques explained: foil, spot UV, embossing, die-cut and lamination, and where to add each finish at checkout at 4OVER4.
Printed Card Prices Explained
See what drives printed card prices: quantity, stock and finish, with live 4OVER4 price tiers and bulk discounts. Get an instant quote.
Printed Workwear That Puts Your Brand On Every Shift
Printed workwear is branded work apparel carrying your logo. Pick the shirt, the print method and the placement, then order the full size run.
6 Steps to Boost Private School Enrollments in 45 Days
Fill more seats fast. Six back-to-school postcard and direct mail steps that turn nearby families into private school enrollments, printed by 4OVER4.COM.
