Use this worksheet to determine the amount of Warm Window fabric and hardware you need to complete your shades.
Roman Shades | Side-draw Shades
Roman Shades
Warm Window Fabric
Finished shade width = Warm Window cut width
Finished shade length + 4" = Warm Window cut length
Note: When measuring Warm Window cut length, do not include the selvage edge in your measurement. Although it is left on, it will be turned up inside the hem. Meaure and cut Warm Window length by starting with the bottom most 4" channel.
Warm Window fabric is available in 45" and 60" widths. The fabric has two selvage edges which are not included when considering your shade length. The selvage can be used for seam allowances when seaming widths together to fit your window dimensions. When one width of Warm Window is too short for your window, you can add another width to it by stitching a horizontal seam along a line of channel quilting in the first piece. Selvage edges are then trimmed off. When the fabric is opened up, the channel lines remain an equal 4" apart.
1 width of 45" Warm Window = Shade length up to 40"
Cut shade length up to 45".
2 widths of 45" Warm Window = Shade length up to 84"
Cut shade length up to 88".
3 widths of 45" Warm Window = Shade length up to 128"
Cut shade length up to 132".
1 width of 60" Warm Window = Shade length up to 52"
Cut shade length up to 60".
2 widths of 60" Warm Window = Shade length up to 108"
Cut shade length up to 120".
Cover Fabric
Finished shade width + 3-1/2" = Cover fabric cut width
Finished shade length + 12-1/2" = Cover fabric cut length
Determine how many fabric widths are required for your shade:
Shade cut width
divided by cover fabric width
= # of cover fabric widths
Determine how many yards of cover fabric you need:
# of fabric widths
x cover fabric cut length
= inches of cover fabric
divided by 36"
= yards of cover fabric
If your fabric has a pattern, you need to calculate extra yardage to match pattern widths.
Cover fabric cut length
divided by pattern repeat
= # of repeats
x pattern repeat
= adjusted cut length
Magnetic Tape
Use this chart to determine how many packages of magnetic strips you need. The magnetic strips will be placed inside your seam allowance and magnetically seal to long lengths of magnetic tape mounted on your window seal.
Look at the chart below to determine how many packages of magnetic tape rolls you need. Cut long lengths of magnetic tape from the rolls and mount them on your window seal. The magnetic strips inside your shade will attract to the magnetic tape on your window seal.
Cord
Purchase enough cord for your size shade using the chart below.
Rings
Each package of Warm Window plastic and brass rings contains 40 rings. The chart below indicates how many packages you need.
Screw Eyes
Determine how many packages of screw eyes you need using the following chart. You may substitute screw eyes with standard pulleys for larger shades.
Warm Window Fabric
Finished shade width + 1-1/2" = Warm Window cut width
Finished shade length = Warm Window cut length
2 widths of 45" Warm Window = Finished shade width up to 92"
2 widths of 60" Warm Window = Finished shade width up to 116"
Cover Fabric
Finished shade width + 3" = Cover fabric width
Finished shade length + 10" = Cover fabric cut length
Determine how many fabric widths are required for your shade:
Shade cut width
divided by cover fabric width
= # of cover fabric widths
Determine how many yards of cover fabric you need:
# of fabric widths
x cover fabric cut length
= inches of cover fabric
divided by 36"
= yards of cover fabric
Magnetic Tape
Shade length x 4 = Amount magnetic tape required
Shade width divided by 4 = # of channels x 2 = # of 3-1/2" magnetic strips
Get more information about Warm Window!
Warm Window main page
Hardware guide
How it works
