The Studio

Seven tools
that do the
arithmetic.

Most design decisions are arguments about numbers nobody has calculated. These do the calculation: sun angles for your latitude, the palette your orientation can carry, the rug that fits, the weeks a wind wall buys you, and what the work is likely to cost.

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A note on the numbers

Rules of thumb, not engineering.

These tools use published rules of thumb and standard solar geometry. They are good enough to argue with a builder and to size a decision before you pay anyone. They are not a structural calculation, an energy model or a quotation. Before you cut an opening, move a load path or sign a contract, have the work checked by someone qualified in your jurisdiction.