Calculator Inputs
Formula Used
This tool estimates fabric length by building a cut list for the top panel, optional bottom panel, and a continuous boxing strip. Each cut piece is converted into length required along the roll, based on fabric width and layout constraints.
- Top/Bottom cut: finished size + (2 × seam) + (2 × ease)
- Rectangular boxing length: 2 × (L + W) + joining allowance
- Round boxing length: π × D + joining allowance
- Boxing cut height: H + (2 × seam) + (2 × ease)
- Repeat/nap: major panels round up to nearest repeat
- Extras: tufting and waste increase total length
Output is rounded up to the nearest 1/8 yard for easier buying.
How to Use
- Select your units and ottoman shape.
- Enter finished dimensions and finished height.
- Choose whether you need a bottom panel.
- Enable piping, tufting, and directional prints if needed.
- Set fabric width, allowances, and waste factor.
- Click calculate to see yardage and cut list.
For outdoor garden seating, keep waste higher if prints must align.
Example Data Table
| Ottoman Style | Finished Size | Height | Fabric Width | Typical Waste |
|---|---|---|---|---|
| Garden bench ottoman | 36 × 18 | 16 | 54 | 12% |
| Compact patio ottoman | 24 × 18 | 16 | 54 | 10% |
| Round footstool | Diameter 20 | 15 | 54 | 12% |
| Large outdoor pouf | Diameter 28 | 18 | 60 | 15% |
Example values are in inches and meant for quick testing.
Why yardage planning matters for garden ottomans
Outdoor ottomans face sun, moisture, and abrasion. Fabrics are heavier, seams are stronger, and allowances are often larger than indoor projects. Because the boxing strip runs around the perimeter, small size changes can add meaningful length. This calculator turns measurements into a rounded buying amount, helping you avoid dye‑lot issues and mid‑project delays for accurate outdoor planning.
Inputs that drive the estimate most
Fabric width controls how panels nest on the roll. Directional prints and nap restrict rotation, so panels may need extra length to keep orientation consistent. Pattern repeat increases length when matching stripes or large motifs. Waste factor covers trimming, alignment, and layout losses. For solids, 8–12% is common; for bold patterns, 12–18% is safer.
What the cut list represents
The cut list includes a top panel, an optional bottom panel, and a continuous boxing strip. Rectangular boxing uses 2 × (L + W); round boxing uses π × D. Seam allowance is applied on all sides, and a small ease allowance supports foam wrap and outdoor batting. Tufting adds extra percentage for pull points and localized folds. If you omit the bottom panel, yardage typically drops noticeably.
How to read the rounded yardage
The final yardage is rounded up to the nearest 1/8 yard to match typical retail cuts. If a panel exceeds the entered fabric width, the estimate assumes piecing and increases length conservatively. Consider wider fabric, splitting the top into multiple panels, or using a coordinating fabric on the underside to improve layout efficiency. Keep a small surplus for binding or future covers.
Outdoor-focused finishing guidance
Piping creates a crisp edge and adds strip yardage; the export includes estimated welt length in feet. Use 0.5 inch seam allowance for most upholstery builds, and increase ease when foam is thick. Enable nap and enter repeat values when prints must align. Increase waste when matching corners, stripes, or large botanicals. Choose mildew‑resistant thread and note any shrinkage from washing.
FAQs
1) What fabric width should I enter?
Enter the usable width of your fabric roll in inches. Common upholstery widths are 54 and 60. If the selvedge is stiff, subtract it and use the remaining workable width.
2) When should I enable directional print or nap?
Enable it for velvets, corduroy, or prints that must face one direction. The calculator rounds major panels to repeats, helping keep orientation consistent and reducing layout surprises.
3) Do I need a bottom panel for outdoor ottomans?
Not always. If the ottoman sits on a solid base or you plan a dust-cover fabric, exclude the bottom panel to reduce yardage. Include it when you want a fully upholstered look.
4) How does piping affect the yardage estimate?
Piping adds fabric for welt strips around the edge. The tool estimates extra yardage from total edge length plus joining allowance, then adds it to your rounded purchase amount.
5) What waste factor is best for patterned outdoor fabric?
For stripes, plaids, or large motifs, 12–18% is typical because matching consumes extra length. For solids or small textures, 8–12% often works if your cutting plan is efficient.
6) Why is the final number rounded to 1/8 yard?
Many retailers cut in fractional yards. Rounding up to 1/8 yard provides a practical buying quantity and protects against small measurement errors, trimming losses, and pattern matching needs.