About JointDecor
We build free tools and write clear guides to help you plan home projects, measure rooms correctly, and calculate building materials before spending money.
Our Mission
Planning a renovation or room redesign usually involves complicated formulas for square footage, waste margins, lighting coverage, and furniture clearance. JointDecor provides free calculators that do the math for you, helping you avoid costly ordering mistakes and contractor delays.
Our Approach
Good home design depends on accurate physical measurements. We build our tools around trade standards, building code requirements (IRC), and guidelines from organizations like the NKBA and NAPO. Every calculation includes clear steps so you know exactly how the numbers were calculated.
Why Use Our Tools?
Trade Standard Formulas
We build our calculators using formulas used by licensed contractors, tile setters, and interior designers. We update them to account for standard material sizes and waste factors.
Free & Open Access
All calculators and guides on JointDecor are completely free to use. There are no paywalls, accounts to create, or locked features.
Private & Direct
You can use all of our tools without creating an account or submitting personal data. Your inputs stay in your browser.
Less Material Waste
Accurate material estimation reduces unnecessary purchases, saving money and keeping extra tile, lumber, and drywall out of landfills.
Meet the Team
JointDecor is built by a team of interior architects, organization specialists, and developers focused on simple, reliable home planning tools.
Sarah Jenkins
Lead Interior Architect
Sarah holds a Master of Architecture from the Rhode Island School of Design (RISD) and has spent 14 years designing residential spaces. She specializes in room layouts, color theory, and ensuring calculations align with NKBA standards and International Residential Code (IRC) guidelines.
Michael Chen
Organization Specialist
With a background in industrial design and professional certification from NAPO, Michael has planned storage layouts for hundreds of residential kitchens and closets. He focuses on ergonomics and precise material estimation.
Elena Rodriguez
Chief Product Designer
Elena has spent over 10 years designing user interfaces for web and mobile software. She turns complex measurement formulas into clean, fast calculators that work on phones and desktop computers.
Get Started
Select a calculator from our hub to start planning your project with exact measurements.