For architects who build in timber
Thin-walled blueprints is a new way to draw: thin faces on the module lines, a recipe on each face and a detail on each joint. Everything else follows — every piece of timber, every sheet, and a cutting plan you can order from.
01 · Draw
You draw as you would a paper model: a rectangle, pull it up, lift the ridge. The faces sit on the structure’s centrelines and on the 1200 module, so the drawing’s dimensions are the house’s.
02 · Recipes
A recipe is the layers from inside to outside: linings, insulation, membranes, the core. Pick it once per part of the building — the wall knows what it is made of without you drawing a single layer.
03 · Joints
Where faces meet, a detail says how each layer ends. One standard for every eave, one for every corner — and an exception exactly where you want one.
04 · Build
Studs, plates, rafters, beams and headers are derived and sized to Eurocode 5. Change the drawing and the frame follows in an instant.
280 members in the frame
The method
A building model describes elements. But what makes a house buildable is decided where the elements meet. Thin-walled blueprints puts that knowledge in three places.
01
The layers from inside to outside, with the core marked. The U-value follows from the recipe and the frame’s actual share of timber.
358 mmU-value 0.167 W/m²K
02
At the eave every roof layer runs through to the overhang, and each wall layer stops against the roof’s inside. Said once, it holds for every eave.
03
The bathroom requires a wet-room lining — but only on the sides that face it. The requirement follows from what the surface separates.
wet-room lining required
Easy to draw
No layer priorities, no wall joins to wrestle with. You draw the space; the tool keeps track of the construction.
01
The footprint, on the module.
02
The walls, to eave height.
03
The roof, at its pitch.
Already have drawings? Put a PDF, DXF or DWG under the model and draw on top.
Bill of materials
Every piece is counted, because every piece is derived. Not an estimate per m² — the house itself.
The case house from the paper: 7.2 × 9.6 m, 30° gable roof. Everything you see is computed by the tool.
Net volume per material. The house itself, nothing wasted.
Timber in running metres per section; sheets, insulation and membranes in m².
What is actually bought: boards in each stock length and sheets in each size, offcuts included.
Danish stock lengths: structural timber from 2.4 to 5.4 m in 30 cm steps, glulam from 6.0 to 13.2 m. Other markets will follow. Export to Excel and CSV.
Cutting plan
Every piece is placed on the lengths the merchant sells, so the offcuts are as small as they can be. Compare it with cutting the pieces as they come.
53 fewer boards to buy, carry and handle.
Waste is all timber bought that doesn’t become a piece: offcuts, a 4 mm kerf per cut and 10 mm trimmed off each board’s end.
Sheets are cut the same way: every piece on a whole sheet, sloped cuts paired so they share the saw line.
The cutting plan prints as a PDF with piece marks.
OSB 15 mm, 1200 × 2440
Out of the tool
Excel and CSV, at three levels.
PDF per board section and sheet, with piece marks.
Frame and envelope, with exact solids.
The drawing itself, in an open format.
Open source and research
The data model and the drawing engine are open source, and the method is described in a peer-reviewed paper. Your drawings are never locked into our tool.
Submitted to Automation in Construction, 2026
Thin-walled blueprints: a building model in which surfaces carry assembly recipes, edges carry joint details and zone boundaries carry rules
Code under Apache-2.0, the ontology under CC BY 4.0. The source on GitHub — coming soon
Pricing
5,950DKK per user per year, excl. VAT
The first month is free. You enter your card at the start, but nothing is charged until the trial month is over — and you can cancel any time before.
Start your free monthQuestions
No. Thin-walled blueprints runs in the browser on Mac and Windows.
Timber houses with gable, hip, shed or flat roofs — catalogue houses, summer houses, annexes and extensions.
Cross-sections, strength classes and lengths are those a Danish timber merchant stocks, so the cutting plan nests onto the boards you can actually buy. Other markets will follow.
Nothing disappears. You can still open and view your projects, and your drawing can always be downloaded as house.json in the open format.
Yes. IFC4 for BIM tools, Excel and CSV for quotes, and the drawing itself in an open, documented format.
In the EU. We sell no data and use no tracking cookies.