Directory Metric or Imperial

Gazebo Framing Geometry Calculator - Center Nogging, Half Rafter and Full Center Rafter Options - Imperial

Gazebo Sides

Length from any outer floor corner point to center. Or radius of outer floor circle
Roof Angle Roof angle is steeper than hip rafter angle ° = in 12
Eve Overhang Level overhang
Roof Extension Extend Roof Sheeting overhang past common (center) rafter end
Hip Rafter Thick Actual
Hip Rafter Depth Actual
King Post Face King Post Face Width - must be at least rafter thickness. Will be re-set if smaller
Birdsmouth Seat
All measurements actual physical sizes

If Center Rafters selected, adds 2 extra creepers per roof section


Email this Calculation Creates a link (below) to save and / or Email current calculation

Gazebo calculator floor only plan view diagram 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 Center Bracket and Kingpost Templates

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

Floor Plan   ( Mouse over entries to highlight )
Outer Circle Area ft²
Outer Circle Circumference
6 Sided Hexagon Area ft²
Triangle Side Lengths (Radius)
Triangle Section Center length
Triangle Section Area ft²
Centers Around Circumference
Side Lengths
Floor Circle Radius
Floor Width at Widest Point

Gazebo Roof Framing
Roof Height Above Plate
King Post Radius
King Post Face Width
King Post Min Bounding Rectangle
Roof Angle °
Hip Rafter Angle °
Hip Rafter Total Length
Roof Segment Outer Width
Roof Segment Center Length
Roof Segment Sides Length
Roof Segment Inner Angle °
Roof Segment Outer Angles °
Roof Segment Area ft²
Total Roof Area ft²
Roof Width at Widest Point

Gazebo roof profile diagram

Gazebo roof hip rafter diagram

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 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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All calculators on this site are geometric only.
Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.

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