Construction Calculator with Writing Tablet – ROATEE Engineering Calculator for Contractors, Carpenters, Masons, and Remodelers

About this product

Construction calculator with writing tablet

Equipped with a flip-page writing pad for quick note-taking without the need for paper or pen, making it eco-friendly and convenient. The thick, phone-like material offers rugged smartphone-level protection, keeping the calculator safe from drops and demanding job site environments.

Over 200 functions for engineering

Includes functions for:

Mixed dimension calculations & conversions
Area and volume
Brick and block
Concrete
Decking, flooring, and wall studs
Drywall sheet count
Circle area, circumference, and arch properties
Compound miters
Polygon tiling
Roofing material
Footing correction
Right angles & rafter work
Pitch & roof angle conversion
Common rafter lengths
Common/hip/jack rafters & spacing
Stair layout
Sloping wall calculations

Precision for every construction professional

With over 200 functions specifically designed for engineering, it features 45 responsive PC hard keys, efficiently distributed, more than other engineering calculators. It supports customizable parameters and has 3 storage registers for smoother and more convenient use.

Large screen and power-saving

Large 3-inch screen with 12 digits, clearer and wider than other calculators. Sharper reading and fewer errors. Automatically turns off after 8–12 minutes of no operation, avoiding unnecessary power consumption.

All-in-one: ideal for multiple professions

Suitable for builders, carpenters, concrete workers, contractors, home renovators, roofers, architects, interior designers, construction estimators, engineering students, and more.

Flip-page writing pad

The flip-page writing pad allows quick and easy note-taking,No paper or pen needed,Eco-friendly and convenient.

3'' large screen

Makes numbers clear and easy to read at a glance

Responsive, well-spaced keys

Ensure smooth and accurate typing, reducing input errors and making long calculations effortless.

TPU protective case

Made of thick, phone-like material, it offers strong, phone-level protection against drops and harsh construction environments.

Just open the box and start.

Ready to use right out of the box!

Comes with an easy-to-follow manual and two quick-reference stickers for common operations—ideal for beginners.
Fully equipped with all required batteries—ready to power on right out of the box.
Supports customizable preferences and features an “electronic tape measure” function that recalls the last 20 entries for review, along with a running total and three additional memory slots.