Directory Metric or Inch

Gazebo Geometry Calculator - All Creepers with Centre Rafter and Rafter Spacing Options - Metric

Sides Rafter Thickness Kingpost face width is equal to rafter thickness
Roof Angle Roof angle is steeper than hip rafter angle Rafter Depth

Length from any outer floor corner point to centre. Or radius of outer floor circle
Eave Overhang Level overhang Birds-mouth Seat
Roof Extension Extend Roof Sheeting overhang past common (centre) rafter end

Email this Calculation Creates a link (below) to save or Email current calculation
Rafter Spacing

Gazebo calculator floor only plan view diagram
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

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

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

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