How to Draw a Dutch Gable Roof in ArchiMaster 3D: Exact Overhang

To draw a Dutch gable roof in ArchiMaster 3D, begin by modeling a hip roof with the Roof Plane Tool, then set the eave overhang to 12–18 inches (300–450 mm) in the Roof Settings panel. Raise and convert the upper central section into a full gable, and trim the lower hip eave returns to match the same projection. This gives a clean gablet roof with an exact overhang at both the hip eave and the gable end. The roof objects are parametric, so a single overhang change updates connected fascia, ridge, and valley lines without manual redrawing. This workflow uses the same engine found in 3D home design software and the ArchiMaster 3D suite. Once you set the footprint and pitch, the full Dutch gable takes under 15 minutes to model.

• Start from a hip roof, not a gable. A Dutch gable is a gablet set on the upper section of a hipped roof, so the base roof must have four hip planes before you convert the top.
• Set the overhang before generating roof planes. Enter 12–18 in (300–450 mm) in the Overhang field and ArchiMaster 3D updates the connected fascia and valley lines automatically.
• Keep the upper gable pitch 3–5° steeper than the lower hip pitch. For example, use 30° upper and 26° lower to avoid a ridge that sinks below the hip.
• Size the upper gable at 50–70% of the total building width. A full-width gable creates a standard gable roof, not a Dutch gable.
• Verify both eave and gable-end overhang with the Dimension Tool before exporting drawings.

What Is a Dutch Gable Roof, and Where Does the Overhang Go?

A Dutch gable roof, also called a gablet roof, combines a lower hipped roof with a small full gable that rises from the top of the hip. The overhang is the horizontal distance the roof plane extends beyond the exterior wall. On a Dutch gable you need two overhang values: the eave overhang along the lower hip and the gable-end overhang where the upper gable returns to the side wall. Most residential Dutch gables use a 12–18 inch eave overhang and a 12–16 inch gable-end overhang. The transition line where the hip and gable meet is the most common place for a fascia gap or a floating roof plane. The roof tools are available in the ArchiMaster 3D suite, and the same parametric engine drives both 3D and 2D views.

Step-by-Step: Draw a Dutch Gable Roof in ArchiMaster 3D

The sequence uses the Wall Tool, Roof Plane Tool, and Roof Settings panel. If you already have a floor plan file, use the import and trace features described in the features overview, then trace the exterior walls. With a prepared footprint, the base hip roof and upper gable take under 15 minutes to model.

1. Set the footprint and wall height

Draw the exterior walls with the Wall Tool or trace an imported plan. Set the wall top to the desired plate height, commonly 8–10 ft. Confirm the wall joins are closed at every corner before generating a roof; a gap of even 1/16 inch produces a broken hip plane at the eave. Use the Dimension Tool to verify the rectangular footprint width and depth. If the plan is asymmetric, model the largest rectangular section first, then add separate roof planes for wings.

2. Generate the base hip roof

Select the Roof Plane Tool and choose a hip roof. Set the lower roof pitch first: common Dutch gables use 24–30° for the lower hip. Enter the eave overhang, typically 12–18 in, in the Overhang field. Click the walls or outline to generate the four hip planes. ArchiMaster 3D's parametric roof objects create the ridge, hips, and valleys in one operation; when you later change the overhang, the connected planes update instead of leaving manual gaps. The full set of roof modeling features is covered in the features overview.

3. Convert the upper section to a gable

Select the upper center portion of the hip roof, or create a second roof plane over the top of the hip. Raise its base height to the transition line, usually 60–70% of the total roof height. Choose a gable roof type for that upper section. Set the upper pitch 3–5° steeper than the lower hip; for example, 30° upper on a 26° lower hip. This keeps the gable ridge visually above the lower hip ridge. Size the gable width at 50–70% of the building width so the result reads as a Dutch gable, not a full gable.

4. Match overhangs at the transition

The upper gable overhang must meet the lower hip eave at the same fascia depth. Select the upper gable roof and enter the same value in the Overhang field you used for the lower hip, usually 12–18 in. Then check the transition in a 3D orbit view. If the upper gable fascia sits behind the lower hip fascia, increase the gable overhang by the difference. If it projects beyond, reduce it. This is the step that prevents the shadow line from looking like a zipper at the gablet.

5. Trim the hip eave returns

On a traditional Dutch gable, the lower hip eaves return to the wall and stop at the gable end with a small horizontal return trim. In ArchiMaster 3D, lower hip planes automatically stop at the wall line, but the gable end plane may need a 12–16 in overhang to meet the hip eave. Use the Trim or Edit Roof Plane tool to cut the hip planes at the transition. After trimming, run the Dimension Tool from the wall line to the fascia on both sides to confirm the overhang matches.

Exact Overhang Dimensions That Prevent Fascia Gaps

Matching numbers at the transition is the difference between a watertight model and a visual error. Use the following as starting dimensions for a single-story residential Dutch gable.

• Lower hip eave overhang: 12–18 in (300–450 mm) from exterior wall to fascia.
• Upper gable end overhang: 12–16 in (300–400 mm) from side wall to gable fascia.
• Upper gable width: 50–70% of building width, measured at the eave line.
• Upper gable pitch: 3–5° steeper than the lower hip pitch; a common pair is 26.6° lower (6/12) and 30° upper.
• Transition height: 60–70% of total roof rise from the eave to the lower hip ridge.

Common Mistakes When Modeling a Dutch Gable

Most failed Dutch gable models come from three errors: starting from a gable roof, changing the upper pitch before setting the overhang, and leaving the transition height too low.

• Starting from a gable roof. A Dutch gable requires the lower hip planes first. If you start from a gable, the software cannot create the hip eave returns cleanly.
• Setting the upper gable too wide. A gable width over 70% of the building reads as a standard gable roof; under 50% looks like a dormer rather than a gablet.
• Using the same pitch for both sections. If the upper gable pitch equals or is lower than the hip pitch, the gable ridge sinks behind the hip and the gablet disappears in elevation.
• Not trimming the hip eave returns. Untrimmed hip planes can shoot through the gable end and create a floating roof plane that shows in 2D and 3D views.

“The transition line is where Dutch gable models fail: match the upper gable overhang to the lower hip eave before you change the pitch.”, ArchiMaster 3D Roof Workflow

Exporting and Measuring Your Dutch Gable for Construction

After the model is complete, use the Dimension Tool to record the eave overhang, gable overhang, ridge height, and transition height. Export a 2D roof plan and elevation as PDF or DWG for permit review. ArchiMaster 3D generates the plan view from the same parametric roof objects, so the dimensions you see in 3D match the export. If you need to show a contractor the hip valley and gablet intersection, export an isometric 3D view from the same file. The software's one-time license across editions means the same roof model can be opened in the Windows desktop suite without a subscription. For a trial before you commit, use the downloads page.