Standard large format architectural sheet sizes are as follows:
- 12" x 18" - this is also commonly called ARCH B
- 15" x 22" - this is also commonly called Half-Size E1
- 18" x 24" - this is also commonly called ARCH C
- 24" x 36" - this is also commonly called ARCH D
- 30" x 42" - this is also commonly called ARCH E1
- 36" x 48" - this is also commonly called ARCH E
Standard large format engineering sheet sizes are as follows:
- 11" x 17"- this is also commonly called ANSI C
- 22" x 34"- this is also commonly called ANSI D
- 34" x 44"- this is also commonly called ANSI E
Business or small format sizes are much more varied, but the most commonly used sizes are as follows:
- Standard letter - 8.5" x 11"
- Legal - 8.5" x 14"
- Ledger/Tabloid - 11" x 17"