Vertical Technik AG manufactures modular skatepark equipment and lists more than 550 components in its online shop. End customers who want to see how a park could look must either work from static catalogue pictures or wait for an employee to build a 3D model in SketchUp. Every change means another round of manual work. This slows the sales process and limits how independently a customer can explore options. Building a planning tool from scratch would exceed a bachelor thesis, so the question was whether an existing open source planner could be reused instead.

The work ran in two phases, starting with a feasibility study. Requirements were collected through interviews and on-site visits at Vertical Technik, and three open source floor planners were evaluated against six criteria. open3dFloorplan (SvelteKit, Three.js) was selected, mainly because it is the only one that natively reads the .glb 3D format the company already uses. The second phase adapted this framework into a prototype: the house-planning features were hidden, the product catalogue was integrated, and the company's own safety rules were added.

The prototype runs in any modern browser at space-planner-six.vercel.app. A user defines the ground area in metres, then drags and rotates modules from a catalogue of 85 products. The tool warns automatically when modules overlap, when the safety zone around a module is violated (1.5 m for rails and curbs, 2.0 m for all others) or when a module lies outside the plot. Identical modules pushed together are recognised as one obstacle and may touch. Three exports close the process: an item list as CSV, a project file, and a PDF with the plan, the module list and a dimensioning page for laying out the park on site with a tape measure.All five Must-have requirements were implemented, with live shop data import remaining dependent on API access. Two feedback rounds with Vertical Technik AG showed that the company's sales staff could use the tool and provided input for further improvements.