Canopy Gable Peak Definitions
(Canopy Gable Peak Styles)

The Peak style is defined by the angle of the fitting that connects the leg to the rafter. The following table shows that as you increase corner angle for a given size tarp width:
  1. The front opening (peak end) of the canopy gets narrower
  2. The Peak height Increases
Peak StyleCorner AngleOpening WidthPeak Height
Flat Roof90 degree10 feet7 feet
Low Gable Peak102 degree9 feet 11 1/2 inches8 feet
Medium Gable Peak110 degree9 feet 6 3/4 inches8 feet 9 inches
High Gable Peak120 degree8 feet 9 3/4 inches9 feet 6 3/4 inches

Tubing and fitting dimensions may not be specified like you would think. Tubing outside diameters are typically larger than the order size. To compensate for this, the openings of the fittings are sized to be slightly larger than the actual tubing size they are specified for. For example a 3/4" fitting actually has a 1" inside diameter. This is sized so that 3/4" EMT which has an actual outside diameter of 15/16" will fit inside the fitting. For more information see the table below.

Fittings ID is the Inside Diameter of the fitting.

Tubing OD is the Outside Diameter of the tubing that is used for this fitting size.
Order SizeActual Fitting ID*Actual Tubing OD*Type Tubing
3/4"1"15/16"Electrical Metal Conduit (EMT)
1"1 3/16"1 1/8"Electrical Metal Conduit (EMT)
1 3/8"1 3/8"1 5/16"Chain link Fence Tubing
1 5/8"1 3/4"1 11/16"Chain link Fence Tubing
1 7/8"1 15/16"1 7/8"Chain link Fence Tubing
*All sizes are rounded to the nearest 1/16" of an inch.

The above measurements were calculated using a 10ft wide tarp, 7 foot side legs and 1 inch tubing.

Design Note:
Tarp over side and Valance canopy designs are not recommended for Flat Roof or Low Peak style canopies. The slope of the roof is not great enough to allow water to run off of the roof. As a result water can accumulate on the top of the canopy and the weight can cause the canopy to collapse