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Gazebo Geometry Calculator - Metric
Select creepers with centre rafter and spacing options, or number of noggings with no creepers. (Select and see diagrams)

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Sides Rafter Thickness
Roof Angle Roof angle is steeper than hip rafter angle Rafter Depth


Eave Overhang
Birds-mouth Seat
Roof Extension

Rafter Spacing

Floor Gazebo calculator floor only plan view diagram Creeper Spacing
Roof and Floor
Gazebo calculator floor plan view diagram
Roof Segments
Gazebo roof segments diagram
Gazebo kingpost diagram Gazebo roof rafter center join bracket diagram

Roof Centre Bracket and Kingpost Templates

Print Centre Bracket Template If you're using a steel bracket to fix the rafters at the centre Print a Paper Template to mark out the bracket.
You can also use this template to mark out the Kingpost.

Floor Plan
6 Sided Hexagon Area
Triangle Side Lengths (Radius)
Triangle Section Centre length
Triangle Section Area
Side Lengths
Floor Width at Widest Point

Roof Plan
Roof Angle °
Rafter Spacing (outer edge)
Hip Rafter Angle °
Hip Rafter Total Length
Hip Rafter Plumb Angle °
King Post Radius
King Post Face Width
King Post Min Bounding Rectangle
Roof Height Above Plate
Roof Segment Outer Width
Roof Segment Centre Length
Roof Segment Sides Length
Roof Segment Inner Angle °
Roof Segment Outer Angles °
Roof Segment Area
Total Roof Area
Roof Width at Widest Point
Sides    Angle    Rotate

Gazebo roof profile diagram

Gazebo roof hip rafter diagram
Birdsmouth Templates (new window)

Cutting hip plumb and side angles with Circular Saw To cut hip tail plumb and side angles with a circular saw: (only with bottom plumb cut)

DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - there's dust in the spray too!

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Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.

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