What to decide first
Before you cut anything, answer three questions:
- Purpose: Is it a hobby display piece, a school project, or a study model to test an architectural idea? Study models are quick and rough. Presentation models are neat and detailed.
- Scale: How large will it be? Scale affects both detail and how much space you need.
- Detail: Will you show interiors, furniture, and landscaping, or only the outer shell?
Making these choices early prevents rebuilding later.
Steps in the model making process
Most building models follow a similar sequence:
- Gather plans or make a sketch. Use real drawings if you have them, or sketch the layout yourself.
- Choose a scale. Convert all dimensions to that scale.
- Pick materials and tools.
- Build the base. A rigid board gives the model a stable footprint; plywood is stiffer than MDF for a base, as explained in MDF strength vs plywood.
- Cut and assemble the walls.
- Add openings, windows, and doors.
- Build and fit the roof.
- Add finishing details and landscaping.
- Test-fit and fix gaps. It is easier to adjust before final gluing.
Some people also build a quick 3D digital model first, for example in free CAD software, to check proportions. One beginner project documented on Instructables took exactly this route: a hand sketch of rooms, a simple 3D model, then a cardboard build on a flat base.
Choosing a scale
Scale is the ratio between the model and the real building. Some commonly used architectural scales include 1:50, 1:100, and 1:200, with smaller scales used for large buildings or whole sites. Which is right depends on your building size and the detail you want. Larger models (such as 1:50) allow more detail but take more space. Write your scale on the drawings before measuring so you do not mix units.
A simple method: measure the real dimension, divide by the scale number, and cut. For example, a 10 m wall at 1:100 becomes 100 mm.
Materials and tools
| Material | Good for | Notes |
|---|---|---|
| Cardboard | Practice models, school projects | Cheap and easy to cut; can warp with wet glue |
| Foam board | Study models, walls | Light and easy to cut cleanly with a sharp blade |
| Balsa and basswood | Frames, trim, detailed walls | Easy to cut but delicate |
| Card stock and paper | Fine details, roofing | Quick for small parts |
| Clear plastic or acetate | Windows | Cuts and glues easily |
| Acrylic | Panels, windows, bases | Can be laser cut; see our acrylic laser cutting settings |
| 3D printed parts | Complex shapes, repeated details | Good for roofs, balconies, and small fittings |
Basic tools include a cutting mat, a hobby knife with fresh blades, a metal ruler, a square, pencils, tweezers, sandpaper, and suitable glue (white PVA glue for card and wood, and plastic cement for plastics). A sharp blade gives cleaner cuts and is safer than a dull one. Always cut away from your body.
Reading plans and types of building plans
People often ask about the “types of building plans.” Different sources list them differently, but common drawings you will see include:
- Site plan: The building’s position on the plot.
- Floor plan: A top-down view of each level.
- Elevations: Views of each face of the building.
- Sections: A slice through the building showing internal heights.
- Roof plan: The roof’s shape and slopes.
- Detail drawings: Close-ups of joints, windows, or stairs.
- Foundation or structural plans: Layouts for the structure below and within.
For a model, floor plans and elevations are the most useful: floor plans for wall positions and elevations for heights, windows, and doors.
Building the base, walls, windows, and roof
Base
Glue or tape your floor plan to a rigid board and mark where walls will stand. A flat base keeps everything aligned.
Walls
Measure each wall from your plans, scale it, and cut it individually. Rooms in real houses are rarely identical, so measure each one. Add small supports along inside corners to keep walls square and strong. Allow glue to set before moving on.
Windows and doors
Mark openings on the wall before assembly, because they are easier to cut while the wall is flat. A common technique is to glue a thin clear plastic sheet behind each opening for glass. Cardboard cutouts, laser-cut frames, or simple card trim all work.
Roof
Measure the span and pitch from the elevations. Cut a template from paper first to test the fit. Gaps between roof and walls are a common problem, so check before gluing and fill any gap with trimmed strips. If you want viewers to see inside, make the roof removable or use a clear sheet.
Using a laser cutter or 3D printer
A laser cutter can cut walls, window openings, and tiny details accurately from thin wood, card, or acrylic, and repeat them consistently. This is a major time-saver for complex facades. Start by exporting your drawings as vector files, then test settings on scrap material. Our guides to laser settings for wood engraving and acrylic laser cutting settings cover the basics. Remember that laser cutting removes a small width of material (kerf), so fine-fitting parts may need small adjustments.
A 3D printer is useful for shapes that are hard to cut from sheet, such as curved roofs, balconies, columns, or small furniture. Print time and cost go up with size, so many modelers use printed parts only for details, and a typical hobby printer’s limits (see the Ender 3 V2 build size) also cap how large a single piece can be.
Finishing and landscaping
- Paint or stain walls and roofs; test the paint on scrap first.
- Add grass using paper, flock, or green sheet.
- Make trees from wire, sponge, or sculpted foam.
- Add paths, fences, vehicles, or figures at the matching scale.
- Mount the model on a clean base with a label if it will be displayed.
Which model is best for architecture design?
It depends on the stage. Quick massing or study models from foam board or card help test shape and proportion early on. Detailed presentation models, often made from precision-cut wood, card, or acrylic, suit final presentations. Digital models complement physical ones by letting you test changes cheaply. There is no single best type; choose the one that fits the question you are trying to answer.
Can model making be a hobby?
Yes. Building models is a popular hobby, and it can start with inexpensive tools and materials. Beginners often begin with a small house in cardboard or foam board, then move on to finer materials and techniques, and eventually laser cutting or 3D printing. Club and online communities are also commonly used for sharing ideas and tips.
Common mistakes
- Starting without a firm scale or consistent units.
- Using dull blades that tear instead of cut.
- Too much glue, which warps card or leaves visible marks.
- Not measuring each wall individually.
- Skipping test fits before final assembly.
- Making the model too detailed for its purpose.