The Sailrite Fabric Calculator

Box Cushions

Unit of Measurement inches mm
A. Finished Width (?)
Intended width of finished cushion. Foam or filler should be oversized by 1% or a minimum of 1/2 inch (13 mm). Thus, the foam width will be at least 1/2 inch greater than this measurement and, for wider cushions, 1% of length greater.
Decimals! Not a number!
B. Finished Length (?)
Intended length of finished cushion. Foam or filler should be oversized by 1% or a minimum of 1/2 inch (13 mm). Thus, the foam length will be at least 1/2 inch greater than this measurement and, for longer cushions, 1% of length greater.
Decimals!
C. Thickness (?)
Foam or filler thickness without compression.
Decimals!
Quantity (?)
Total number of cushions needed with these dimensions.
Integer!
Fabric Width (?)
Useable fabric width -- sometimes called nominal width (often 46, 54, or 60 inches -- 1168, 1372, and 1524 mm)
Numbers!
Include (?)
Depending upon the cushion style, yardage requirements and pattern rendition will vary. And often it will be decided to utilize different fabrics for the top and bottom plates in which case partial renditions will be appropriate.
Full Cushion One Plate & Boxing One Plate Only
Orientation--Cushion length on fabric: Length Width
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.UofM}} .

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

List of Materials:Decorative fabric required {{data.rollLength}} {{data.UofM}} or {{data.yards}} yards.
Foam or fiber filler or both.
1/4 inch Seamstick for canvas (Item #104167) {{data.seamStick}} roll.
V-46 or V-69 thread from Sailrite.
#5 Vislon zipper(Item #28218 or #100029)
#5 Vislon non-locking Pull (Item #103178 or #103179)
--OPTIONAL--
Piping: {{data.binding}} {{data.UofM}} of prefabricated piping.
OR, for matching piping (assuming a 1.25 inch -- 31.75 mm -- wide tape), add {{data.bindingSource}} {{data.UofM}} of additional fabric.
OR, for bias cut piping (1.25 inch -- 31.75 mm -- wide tape), add approximately {{data.biasBindingSource}} {{data.UofM}}.

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