BlockToBlock

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About this app

BlockToBlock (B2B) is your smart construction companion a mobile first toolkit built for anyone planning or managing a building project. Whether you're a future homeowner, a DIY builder, a site supervisor, or just someone exploring construction options, BlockToBlock makes it easy to calculate materials, manage construction details, and learn on the go. No experience required — just your vision and this app to help you bring it to life, block by block.

What’s new

Cement & sand conversions fully aligned across Quick and Full Mode
m³ calculations corrected and standardised
Wall Area upgraded with accurate block, mortar, and material breakdowns
Full Mode now matches Quick Mode results 1:1
Better handling of openings, waste, and joint thickness
Material pricing now works seamlessly across all units (bag, kg, tonne, headpan, m³)
Estimates are faster, clearer, and more accurate than ever.