Blueprint paper weight affects durability, readability, and how plans perform on job sites, in transit, and during scanning. This guide explains the differences between 20 lb, 24 lb, and 32 lb bond — and when each makes sense for construction drawings.
All blueprint paper is not the same. While size determines scale and readability, paper weight determines performance.
Choosing the wrong paper can lead to tearing, curling, poor scans, or unnecessary cost. Choosing the right paper improves longevity and usability without overpaying.
20 lb bond is the most common blueprint paper. It is lightweight, economical, and suitable for most construction workflows.
Best used for:
For most contractors, 20 lb bond is the default and perfectly sufficient.
24 lb bond offers increased thickness and strength without feeling heavy. It resists tearing better and lays flatter when rolled.
Ideal for:
Many professionals upgrade to 24 lb when durability matters more than cost.
32 lb bond is thick and rigid, often used for presentations rather than field work. It is more expensive and not necessary for most construction drawings.
Recommended only for:
For most blueprint printing, 20 lb bond is the right choice. Upgrade to 24 lb when durability or scanning quality matters. Reserve 32 lb for presentation use only.