# item.guide
Side-by-Side Comparison Paper Weight & Grammage

GSM Grammage vs. Text / Book Weight

Comparing 2 standards across 14 specifications. 14 key differences identified.

Comparing:
GSM Grammage
Text / Book Weight

GSM (Grams per Square Meter / g/m², standardized under ISO 536) is the universal metric measure of paper areal density. Defining the exact physical weight in grams of a 1-square-meter (A0) sheet, it provides a linear, universal scale that eliminates the confusion of different paper grades and sheet sizes.

View full GSM Grammage spec sheet →

Text Paper (Basis Weight: Text / Book / Offset, standardized under TAPPI T 410) is a North American commercial printing paper grade defined as the weight in pounds of a 500-sheet ream of uncut master sheets measuring 25 × 38 inches. It is standard for commercial book interiors, magazines, brochures, and marketing collateral.

View full Text / Book Weight spec sheet →

Specification Comparison Table

14 Parameters
Parameter / Spec
Standard Metric Unit
g/m² (Grams per Square Meter — GSM) —
Standard Copy Paper
80 gsm (Standard European/Asian office paper — ~20 lb to 22 lb US Bond) —
Premium Stationery / Letterhead
100 to 120 gsm (Smooth premium corporate letterhead / resume paper) —
Flyers & Magazine Pages
130 to 170 gsm (Semi-gloss / silk coated marketing flyers and magazine interiors) —
Greeting Cards & Booklet Covers
200 to 250 gsm (Medium cardstock / folder covers) —
Heavy Business Cards & Postcards
300 to 350 gsm (Heavy rigid cardstock / luxury business cards) —
Rigid Packaging Boxboard
400+ gsm (Folding cartons, cosmetic boxes, presentation covers) —
Master Parent Sheet Size
— 25.0 × 38.0 inches (yields sixteen 6 × 9 in trade book pages per master sheet)
Standard Ream Basis
— 500 master sheets (25 × 38 in)
50 lb Text Equivalent
— 74.0 gsm (Standard lightweight trade paperback novel interior paper — equals 20 lb Bond)
60 lb Text Equivalent
— 88.8 gsm (Standard quality trade non-fiction book paper — equals 24 lb Bond)
70 lb Text Equivalent
— 103.6 gsm (Heavier illustrated textbook and booklet interior paper)
80 lb Text Equivalent
— 118.4 gsm (Standard commercial full-color brochure and magazine paper)
100 lb Text Equivalent
— 148.0 gsm (Heavy premium annual report and high-end marketing collateral paper)