The Sailrite Fabric Calculator

The Box Cushion Calculator

 
Cushion Types Main Menu

Cushions with two plates
and a wrap-round boxing

Box Cushion Image
Unit of Measure inches cm
A. Finished Width (?)
Intended width of finished cushion. Foam or filler should be oversized by 1% or a minimum of 1/2 inch (1.3 cm). Thus, the foam width will be at least 1/2 inch greater than this measurement and, for wider cushions, 1% of length greater.
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B. Finished Length (?)
Intended length of finished cushion. Foam or filler should be oversized by 1% or a minimum of 1/2 inch (1.3 cm). Thus, the foam length will be at least 1/2 inch greater than this measurement and, for longer cushions, 1% of length greater.
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Decimals!
C. Thickness (?)
Foam or filler thickness without compression.
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Decimals!
Quantity (?)
Total number of cushions needed with these dimensions.
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Integer!
Fabric Width (?)
Useable fabric width -- sometimes called nominal width (often 46, 54, or 60 inches -- 116.8, 137.2, and 152.4 cm)
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Numbers!
Include in Rendition: (?)
Different fabrics for the top and bottom plates may require partial renditions.
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  Cover   One Plate & Boxing   One Plate
Select Fabric Style: (?)
"Vertical Pattern" will run boxing and measurement "B" across the fabric width while "Horizontal Pattern" will run boxing and measurement "B" down the fabric length. "No Pattern" will select plate orientation and run boxing strips to reduce the fabric needed.
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  No Pattern   Vertical Pattern   Horizontal Pattern
Key Dimensions: The plates will be {{data.widthFinal}} {{data.UofM}} wide and {{data.lengthFinal}} {{data.UofM}} long.
{{data.numOfPlates}} {{data.plates}}.
Foam width = {{data.foamWidth}} {{data.UofM}}.
Foam length = {{data.foamLength}} {{data.UofM}} .
Seam allowances = {{data.edgeAllowance}} to {{.5 * data.UofMScale}} {{data.UofM}} .

Centering margin = {{data.centering}} {{data.UofM}} -- separation offset = {{data.horizontalSeparation}}.
Boxing width = {{data.boxingWidth}} {{data.UofM}} -- minimum length = {{data.boxingLength}}.
Zipper plaque width = {{data.plaque}} {{data.UofM}} -- minimum length = {{data.plaqueLength}}.

List of Materials: Fabric required from Sailrite = {{data.yards}} yards.
Foam from Sailrite
1/4 inch Seamstick for Canvas = {{data.seamStick}} roll.
V-46 or V-69 or V-92 thread.
#5 YKK Continuous Length Zipper Coil or Vislon = {{data.plaqueLength}} {{data.UofM}}.
#5 YKK Zipper Slider Coil or Vislon = {{data.quantity}}

--OPTIONAL PIPING--
Prefabricated Piping = {{data.binding}} {{data.UofM}}
OR, for Straight Cut 1.5 inch (3.81 cm) piping (cutting along the width of the fabric) = add {{data.bindingStraight}} {{data.UofM}} of additional fabric.
OR, for Bias Cut 1.5 inch (3.81 cm) Piping, add approximately {{data.bindingSource}} {{data.UofM}}.

Canvas not supported
Canvas not supported
Canvas not supported

NOTE: Our goal is to make the Fabric Calculator as accurate as possible, but please double-check all results thoroughly. Sailrite will not be held responsible for any miscalculations, cut fabric, or purchased fabric as a result of this software.

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