CAD Blocks

CAD Blocks is a design tool that turns a furniture photo into a true-size DXF block set. CAD Blocks draws plan, front and side elevations of furniture from a product photo or link, sized to the dimensions you enter, and delivers them as a DXF for AutoCAD, Revit, SketchUp, Vectorworks and Chief Architect.

CAD Blocks is a web service that converts a furniture product photo into drawing-ready CAD geometry. A user pastes a product page link, or uploads photos, a screenshot or a PDF spec sheet (up to four images of one item), and the service produces a plan, a front elevation and a side elevation. These arrive in a single DXF file as three named blocks, drawn at true size in millimetres or inches. The tool is aimed at interior designers, architects and specifiers who spend hours redrawing manufacturer furniture for FF&E schedules. It was built with a working interior designer, and the output is meant to open in AutoCAD, Revit, SketchUp Pro, Vectorworks and Chief Architect. A separate SketchUp-ready DXF adds a surface to every closed area so the views can be painted, though it requires SketchUp Pro on the desktop. In practice the workflow has three steps: add the product, enter the width, depth and height, and download the file. Every view is fitted to the stated dimensions, so the overall size is exact, while inner proportions such as arm height or leg spacing follow the photo. Views the photo does not show are inferred, so the maker's spec sheet should be used to check a block before drawings are issued. The outline sits on layer 0 with ByBlock colour, detail lines go on I-FURN-DETL, hidden edges are dashed on I-FURN-HIDN, and attributes such as maker, model and dimensions travel with each block for scheduling. Resizing a finished block is free. Drawing is handled through Anthropic's Claude API, and a second pass checks the drawing against the photo. Pricing is block-based: a free tier of three blocks a month, pay-as-you-go packs, a single-designer plan, and a shared Studio plan with a team library and batch upload. Compared with downloading generic block libraries or modelling pieces by hand, it is useful for specific products that no library covers. Output is DXF only, with direct DWG export listed as planned.