MeasurePal addresses a major challenge in residential construction: inaccurate manual measurements and outdated estimating methods that cost contractors time and money. Small and mid-sized contractors, particularly deck and remodel specialists, often lack affordable digital tools, relying instead on error-prone tape and paper processes. Our solution is a mobile app that uses smartphone LiDAR and AI photogrammetry to instantly produce accurate 3D scans, surface areas, and material estimates. Unlike expensive enterprise systems, MeasurePal is intuitive, affordable, and built for on-site use, allowing contractors to scan, calculate, and export estimates in minutes.