Top 9 12×18 Cardstock White – Poster Boards

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1. DISCOUNTCARDSTOCK.COM

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100lb. Cover 285GSM, 100% Made in the U.S.A., Super Smooth Matte Finish, Premium Heavy White 18" x 12" Card Stock

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DISCOUNTCARDSTOCK.COM #ad - Super smooth finish for Elite Printing Results - Inkjet & Laser Compatible. Heavy card stock 100lb cover 285gsm 11pt sturdy Stock - Please check printer specs to ensure it can handle this weight. Buy with confidence!18" x 12" great for Printing Posters. 100% made in the u. S. A. Bright white super smooth Matte Card Stock - Matte Finish.
BrandDISCOUNTCARDSTOCK.COM #ad
ManufacturerCG-100-1812-50 #ad
Part NumberCG-100-18x12-50

2. Hammermill

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100 Bright, White, 80 lb, Premium Color Copy, 133200R, Hammermill Cardstock, Made in the USA Card Stock, 18 x 12-1 Pack 250 Sheets

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Hammermill #ad - The super smooth paper surface can take the heat and heavy application of toner while producing photos. Sustainably made in the usa – hammermill paper is forest stewardship Council FSC certified which means it is made with renewable resources from third-party certified, sustainably managed forests.

It’s acid-free to prevent yellowing over time. Acid-free paper for color printing – premium color copy cover paper is ideal for double-sided printing, photographic reproductions, direct mail, design proposals, full-color presentations, menus & more. Premium color copy cover paper – hammermill 18” x 12” 80lb premium color cardstock Paper provides a durable, cover weight sheet that’s specifically designed to produce consistently reliable results for color copiers and color laser printers.

Super bright finish – at 100 brightness, this copying paper is super bright for excellent image contrast and true color reproduction.
BrandHammermill #ad
ManufacturerSylvamo #ad
Height18 Inches
Length12 Inches
Weight12.46 Pounds
Width2 Inches
Part Number133200R
Model133200R
Warranty99.99% Jam-Free Guarantee

3. Desktop Publishing Supplies, Inc.

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Great for Flyers, Covers 50 Sheets, Heavy 80lb Cover Matte Finish White, Menu's, Posters, 12" x 18" Cardstock Sheets for Inkjet or Laser Printers

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Desktop Publishing Supplies, Inc. #ad - Made in the usa from a thick 80lb Cover 218 gsm White Cardstock. White matte finish on Both Sides - Inkjet and Laser Printer Compatible. 12x18 cardstock size - works great for Creating Your Own Posters, Menus, Flyers, Greeting Cards and More!.
BrandDesktop Publishing Supplies, Inc. #ad
ManufacturerDesktop Publishing Supplies, Inc. #ad
Part Number59222-50

4. S Superfine Printing

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Blank White Cardstock 12” x 18” Inches | Heavyweight 100lb Cover 270 gsm | 50 Sheets Per Pack

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S Superfine Printing #ad - Made from smooth finish / 96 brightness - 270 GSM 100lb Cover. Laser inkjet copier guaranteed for hassle free performance. 50 sheets per pack. 12" x 18" white Card Stock. Perfect for brochures, greeting & mailing cards, tent cards, menus.
BrandS Superfine Printing #ad
ManufacturerSuperfine Printing Inc. #ad
Weight4.01 Pounds
Part Number1218-32
ModelSG_B06ZYV7WR2_US

5. S Superfine Printing

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Blank White Cardstock 12” x 18” Inches | Heavyweight 80lb Cover 218 gsm | 50 Sheets Per Pack

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S Superfine Printing #ad - 12" x 18" white Card Stock. Perfect for brochures, menus, greeting & mailing cards, tent cards, . Made from smooth finish / 96 Brightness - 218 GSM 80lb Cover. Laser inkjet copier guaranteed for hassle free performance. 50 sheets per pack.
BrandS Superfine Printing #ad
ManufacturerSuperfine Printing Inc. #ad
Height18 Inches
Length12 Inches
Weight2.5 Pounds
Width1 Inches
Part NumberBPC-1785
ModelOP-1731

6. Accent

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Cards, Business Cards – 188096C, Accent Opaque 18” x 12” White Cardstock Paper, Menus, 271gsm – 800 Sheets 4 Reams – Premium Smooth Heavy Cardstock, Printer Paper for Invitations, 100lb

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Accent #ad - Thick, white cardstock paper – accent opaque heavy cardstock paper offers a high bright-white shade and smooth finish It’s premium cardstock paper with excellent printability, proper ink holdout & minimal show-through for vibrant prints.

Sustainably sourced – accent papers are 100% made in the usa and forest stewardship Council FSC certified When you buy Accent cardstock printer paper, you are helping replant forests and support sustainable forestry jobs for landowners in America. Ideal for home, brighter and more realistic it also has superior strength for die-cutting, SCHOOL OR OFFICE PRINTING – This premium cardstock paper has been specially treated to make colors bolder, scoring & folding.

Pairs well with other accent paper – for a consistent look to your project, pair this 100lb cardstock with Accent text weight copy paper Look for our complete line of text weight and cover weight papers in super smooth, smooth and vellum finishes.
BrandAccent #ad
ManufacturerSylvamo #ad
Height11.7 Inches
Length12.25 Inches
Width18.25 Inches
Part Number188096C
Model188096C

7. PACON

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Heavyweight, Pacon PAC5214 Tagboard, 100 Sheets, 12" x 18", White

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PACON #ad - Acid-free and recyclable. Smooth surface for working with pencils, crayons, pens, markers, and other media. Measures 12" x 18"; 100 sheets. Exceptionally strong, multi-purpose tagboard can be used for hundreds of arts and crafts projects. Heavyweight 11 pt.
BrandPACON #ad
ManufacturerPacon #ad
Height1.08 Inches
Length18 Inches
Weight0.02 Pounds
Width12 Inches
Part NumberPAC5214
ModelPAC5214
WarrantyNo Warranty

8. S Superfine Printing

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Blank White Large Cardstock 12” x 18” Inches | Medium Weight Thick Paper 65lb Cover Card Stock 176 gsm | 50 Sheets Per Pack

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S Superfine Printing #ad - Double-sided smooth finish surface and 96 brightness rating that's perfect for designing eye-catching presentations and making your artsy designs pop. Measures 12" x 18" inches and made from medium weight 65lb cover stock 176 gsm perfect paper choice for impactful presentations.

This sturdy paper is also made with SFI wood fibers. Premium quality of paper that makes an ideal addition to any office setting. Its durability and high-quality makes a perfect choice for personal use, business communications, posters, art projects, office-school supplies, printing documents and etc. It is mostly compatible with inkjet, laser, and multi-function printers and copiers but please consult your printer's manual before ordering to make sure it can handle 65lb cover 176 gsm cardstock.

This preserves the paper, texts, and images and keeps it last long. It holds colors well and delivers rich, vibrant colors and sharp images with flawless results. Note: this stock is thick and medium weight. This cardstock is ideal for scoring and folding or cutting down to custom sizes for brochures, menus, photo mats and etc. 50 sheets of acid-free and lignin-free cardstocks that won't make your documents, arts and print works turn yellow and brittle.
BrandS Superfine Printing #ad
ManufacturerSuperfine Printing Inc. #ad
Part Number23122

9. Desktop Publishing Supplies, Inc.

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Matte Finish White, Posters, Menu's, Covers 50 Sheet Pack, Extra Thick 12" x 18" Cardstock for Inkjet or Laser Printers, Great for Cards, 100lb Cover 270 GSM Heavy Printer Paper

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Desktop Publishing Supplies, Inc. #ad - 12x18 cardstock size - works great for creating Your Own Posters, Flyers, Menus, Greeting Cards, Business Cards, and More!. Made in the usa from an extra heavyweight Thick 100lb Cover 270 gsm White Cardstock. White matte finish on Both Sides - Inkjet and Laser Printer Compatible.
BrandDesktop Publishing Supplies, Inc. #ad
ManufacturerDesktop Publishing Supplies, Inc. #ad
Part Number59322-50