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

ANSI D vs. US Legal

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

Comparing:
ANSI D
US Legal

ANSI D is an engineering drawing paper standard defined by ANSI/ASME Y14.1, measuring 22.0 × 34.0 inches (558.8 × 863.6 mm). Formed by doubling ANSI C, it is the classic North American engineering blueprint format for civil engineering site plans, automotive chassis designs, and aerospace sub-assemblies.

View full ANSI D 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)
22.00 × 34.00 in 8.50 × 14.00 in
Width × Height (Metric)
558.8 × 863.6 mm 215.9 × 355.6 mm
Aspect Ratio
1 : 1.5455 (11 : 17 — identical to ANSI B) 1 : 1.6471 (17 : 28)
Primary Applications
Civil engineering utility plans, automotive chassis CAD plots, aerospace mechanical schematics Court legal filings, real estate title contracts, commercial loan agreements, restaurant food menus
ANSI Hierarchy
ANSI D = 2 × ANSI C = 4 × ANSI B = 8 × ANSI A
International ISO Equivalent
A1 (594 × 841 mm)
Surface Area
119.0 in² (0.0768 m²)
Height Comparison to Letter
+3.0 inches (76.2 mm) longer than standard US Letter