Even in our high-tech world, scale rulers are used by architects and engineers to calculate dimensions in a blue print or building plan without the use of math equations. Koh-I-Noor offers a variety of scales which are widely used in the architectural and engineering fields in a range of materials, from plastic to aluminum.
| Catalog # | Description | EAN/UPC | Unit of Measure | Retail Price (2010) |
| 3272 | PL ARCH TRI SCALE | 014173276971 | EA | $10.30 |
| 3274 | PL ENGR TRI SCALE | 014173276995 | EA | $10.30 |
| 3277 | COMBINATION SCALE DNO | 014173277022 | EA | $11.90 |
| 3278 | COMBO INCH & METRIC SCDNO | 014173277039 | EA | $11.90 |
| 3276E12 | ENGR TRI SCALE | 014173277015 | EA | $28.20 |
| 8230E12 | ENGR TRIANG SCALES | 014173288707 | EA | $35.20 |
| 3276A12 | ARCH TRI SCALE | 014173277008 | EA | $28.20 |
| 8230A12 | ARCH TRIANG SCALES | 014173288691 | EA | $35.20 |
| 8230M03 | METRIC TRIAN SCALES | 014173288721 | EA | $35.20 |
| 33EM | STAINLESS POCKET SCALE METRIC | 014173155924 | EA | $9.50 |
| 330M | METRIC BEVEL SCALE | 014173252319 | EA | $10.40 |
| 330T | "BEVEL SCALE 6"" LENGTH ARCHITECTURAL" | 014173155955 | EA | $10.40 |
| 331T | "BEVEL SCALE 6"" LENGTH ENGINEERING" | 014173155979 | EA | $10.40 |
| 332T | "BEVEL SCALE 6"" LENGTH METRIC CONVERSION" | 014173155993 | EA | $10.40 |
| 335T | "PLASTIC BEVEL SCALE 6"" METRIC" | 014173156013 | EA | $10.40 |
| 340A | "BEVEL SCALE 12"" LENGTH ARCHITECTURAL" | 014173156044 | EA | $12.10 |
| 341E | "BEVEL SCALE 12"" LENGTH ENGINEERING" | 014173156051 | EA | $12.10 |
| 342M | "BEVEL SCALE 12"" LENGTH METRIC CONVERSION" | 014173156068 | EA | $12.10 |
| 231TR | COLOR-CODED TRIANGULAR SCALE METRIC CONV | 014173154897 | EA | $14.00 |
| 235A | "COLOR-CODED TRIANGULAR SCALE ARCH.12""" | 014173154934 | EA | $14.00 |
| 235AM | "COLOR-CODED TRIANGULAR SCALE ARCH/ENG12""" | 014173154958 | EA | $14.00 |
| 235E | "COLOR-CODED TRIANGULAR SCALE ENG.12""" | 014173154965 | EA | $14.00 |
| 236 | "COLOR-CODED TRIANGULAR SCALE METRIC 12""" | 014173154989 | EA | $14.00 |
| 238 | "ALUMINUM TRIANGULAR SCALE ARCH.12""" | 014173155009 | EA | $30.10 |
| 238A | "ALUMINUM TRIANGULAR SCALE ARCH. 6""" | 014173155016 | EA | $22.40 |
| 240 | "ALUMINUM TRIANGULAR SCALE ENG. 12""" | 014173155047 | EA | $30.10 |
| 240E | "ALUMINUM TRIANGULAR SCALE ENG. 6""" | 014173155054 | EA | $22.40 |
| 241 | "ALUMINUM TRIANGULAR SCALE METRIC 12""" | 014173155061 | EA | $30.10 |
| 241M | "ALUMINUM TRIANGULAR SCALE METRIC 6""" | 014173155078 | EA | $22.40 |
| 242A | "4"" POCKET TRIANGULAR SCALE ARCH." | 014173155085 | EA | $12.70 |
| 243E | "4"" POCKET TRIANGULAR SCALE ENG." | 014173155092 | EA | $12.70 |
| P232AES | YELLOW PLASTIC TRIANGULAR SCALE ARCH. | 014173150653 | EA | $8.00 |
| P232AT | WHITE PLASTIC TRIANGULAR SCALE ARCH. | 014173150660 | EA | $8.00 |
| P232EES | YELLOW PLASTIC TRIANGULAR SCALE ENG. | 014173150677 | EA | $8.00 |
| P232ET | WHITE PLASTIC TRIANGULAR SCALE ENG. | 014173150684 | EA | $8.00 |
| P233AEES | YELLOW PLASTIC TRIANGULAR SCALE ARCH&ENG | 014173150691 | EA | $8.00 |
| P233AET | WHITE PLASTIC TRIANGULAR SCALE ARCH.&ENG | 014173150707 | EA | $8.00 |