# item.guide
Side-by-Side Comparison North American (ANSI & Arch)

ANSI C vs. US Legal

Comparing 2 standards across 8 specifications. 8 key differences identified.

Comparing:
ANSI C
US Legal

ANSI C is an engineering paper standard defined by ANSI/ASME Y14.1, measuring 17.0 × 22.0 inches (431.8 × 558.8 mm). Formed by joining two ANSI B (Tabloid) sheets or four ANSI A (Letter) sheets, it is the entry format for mechanical CAD assembly drawings and electrical wiring schematics.

View full ANSI C spec sheet →

US Legal is a North American traditional paper size measuring 8.5 × 14.0 inches (215.9 × 355.6 mm). Sharing the 8.5-inch width of US Letter but extending 3 inches longer, it is used throughout the US and Canadian legal systems for courtroom trial transcripts, real estate deeds, and legislative statutes.

View full US Legal spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
Width × Height (Imperial)
17.00 × 22.00 in 8.50 × 14.00 in
Width × Height (Metric)
431.8 × 558.8 mm 215.9 × 355.6 mm
Aspect Ratio
1 : 1.2941 (17 : 22 — identical aspect ratio to ANSI A) 1 : 1.6471 (17 : 28)
Primary Applications
Mechanical component CAD drawings, electrical control panel schematics, industrial plumbing diagrams Court legal filings, real estate title contracts, commercial loan agreements, restaurant food menus
ANSI Hierarchy
ANSI C = 2 × ANSI B (Tabloid) = 4 × ANSI A (Letter)
International ISO Equivalent
A2 (420 × 594 mm)
Surface Area
119.0 in² (0.0768 m²)
Height Comparison to Letter
+3.0 inches (76.2 mm) longer than standard US Letter