Duratech Loose Leaf Paper – Field Pattern Rectangular Grid – Blue Lines – 4½″ x 7″ Duratech Loose Leaf Field Sheets with Rectangular Grid (Blue Lines) are designed for clear, organized data recording in surveying, engineering, and construction applications. The rectangular grid layout provides a structured format for measurements, notes, and sketches, helping maintain accuracy and consistency in the field. Sized at 4½″ x 7″, these sheets are compact and portable, with a pre-punched 6-hole design for compatibility with standard field binders. Manufactured from durable 60 lb paper, they are built to withstand regular field use while maintaining legibility and organization. Key Features • Field pattern with rectangular grid layout – ideal for structured data recording • 4½″ x 7″ size – compact and field-ready • Pre-punched 6-hole design – compatible with standard binders • Durable 60 lb paper – reliable for field conditions • Suitable for surveying, construction, and engineering applications