Stop printing on the wrong size. Here is everything you need to know to choose the right paper every time.

Most Canadian offices default to Letter size and never think about it again, until a contract is submitted on the wrong size, a brochure gets cropped incorrectly, or an international client notices a formatting error. Paper size is a small detail that creates big problems when it is wrong. This guide covers every major paper size used in Canadian offices, explains paper weights and brightness ratings, and tells you exactly which paper to use for which job.

Letter Size (8.5" x 11"): The Canadian and North American Standard

Letter is the default paper size in Canada and the United States. It is what your printer defaults to, what virtually every business template is designed for, and what every Canadian office should stock in bulk. The standard for the vast majority of professional documents printed in Canada. Best use cases: everyday printing, business reports, correspondence, forms, invoices, flyers, and general office documents.

Legal Size (8.5" x 14"): Three Inches Longer for Legal and Government Documents

Legal paper is three inches longer than Letter size. It is widely used in Canadian legal, real estate, and government contexts where additional space on a single sheet is needed. Many provincial and federal government forms are formatted for Legal size. Best use cases: contracts, real estate agreements, legal filings, wills, government forms, and any document requiring extra vertical space.

Tabloid / Ledger Size (11" x 17"): Double Letter for Oversized Content

Tabloid (also called Ledger) is exactly double the size of Letter paper. It is ideal for large-format printing, visual presentations, and documents that need room to spread. Note: not all office printers support this size, confirm your printer specifications before ordering. Best use cases: posters, architectural and engineering drawings, oversized spreadsheets, event programs, and promotional newsletters.

A4 Size (210mm x 297mm): The International Standard

A4 is the global paper standard used in Europe, the United Kingdom, Asia, Australia, and most countries outside North America. It is slightly taller and narrower than Letter. Canadian businesses that regularly correspond with international clients or partners should keep A4 stock on hand. Best use cases: international correspondence, globally distributed documents, and import/export paperwork.

A5 Size (148mm x 210mm): The Compact Format

A5 is exactly half the size of A4. It is a practical format for professional notepads, booklets, invitations, and compact marketing brochures. Increasingly popular for branded desk journals and product information inserts. Best use cases: pocket-sized notepads, event programs, product information cards, and small-format brochures.

Index Cards (3" x 5" and 4" x 6"): Practical in Offices and Daycares

Index cards are versatile tools for offices and daycare centres alike. In offices: recipe-style reference cards, cue cards for presentations, and quick task labels. In daycare settings: activity flash cards, schedule cards, and parent communication notes. Available ruled and unruled in both standard sizes.

Paper Weight Guide: What lb and gsm Actually Mean

Paper weight tells you how thick and durable a sheet is. In Canada you will see both Imperial (lb) and metric (gsm) ratings. 20 lb / 75 gsm: standard copy paper, suitable for everyday printing. 24 lb / 90 gsm: premium office paper with better ink absorption and a more substantial feel. 28-32 lb / 105-120 gsm: presentation-quality paper for client-facing materials. 65-110 lb cardstock: business cards, report covers, promotional signage. Higher weight means a thicker, more professional sheet — and a noticeably better impression.

Brightness Ratings: Why They Matter for Colour Printing

Brightness is measured on a scale of 1 to 100 and directly affects how sharp and vivid your printed documents look. Standard office copy paper typically rates at 92 brightness, suitable for most everyday documents. Premium office paper reaches 96-100 brightness, which makes a visible difference for colour charts, marketing materials, and anything where image quality matters.

Using the right paper for the right job is one of the fastest, most cost-effective ways to elevate how your Canadian business presents itself. Browse our complete paper collection, organized by size, weight, brightness, and purpose — with expert guidance on every product page. Bulk orders ship free across Alberta.