Sewing Patterns, Pattern Review, Sewing Classes, Sewing Machines and Sewing Machine Reviews!
Platinum Sponsor: Stylish Fabric
Over 20,000 of high quality reorderable fabric

[SIGNUP - FREE Membership & 1 FREE Sewing Lesson ]
[Sewing Classes|Shopping Bag Your Shopping Bag|Login|Help]
Sewing Review and Pattern Reviews Sewing Knowledge Base Sewing Patterns Sewing Classes & Sewing Lessons Sewing Machine & Embroidery Machinery Sewing Message Boards Sewing merchants Blog Help/FAQ About Pattern Review
Enter your e-mail address:




Advanced Search
Tags
New to PR?
Sewing Machines
Compare Sewing Machines
Sewing Machine & Serger Reviews
Embroidery Machines
Sewing Reviews
Sewing Patterns
Review Gallery
Sewing Books
Sewing Supplies
Sewing Websites
Sewing Stores
Sewing Class Reviews
Sewing Expo Reviews
Sewing Tips & Techniques
Sewing Podcasts
NEW!Fabric Glossary
Sewing Review Requests Add a Review Request
Your Account
Edit Profile
My Page
Favorites
Wish List
Pattern Catalog
Notifications
Friends of PR
Join Friends of PR
Find a member
Deal Corner
Photo Album
Calendar
Chat Room
Chat Schedule
Chat Transcripts
Sewing Classifieds
Add a Classified
Sewing Contests
enter contest
contest report
contest gallery
Favorite Links
reviews with comments
merchant gallery
article archive
newsletter archive
Craft Resources
contact info
shipping rates
returns & refunds
testimonials

Platinum Sponsor - Stylish Fabric
Stylish Fabric
You are not logged in. Login here.



Message Board > Beginner's Forum > bias strips ( Moderated by EleanorSews)

Please LOGIN or Join PatternReview
Go to Page:
bias strips
math needed for long lengths
lulurose
lulurose
Advanced Beginner
Member since 11/4/09
Posts: 140
Login to reply to this post

Date: 8/2/12 11:19 AM

I'm going to tackle a wingback chair and estimated I'll need 13 yards of piping. I've looked up some tutorials and would like to use the continuous strip method from a tube. However I can't figure out how much fabric to use. I'm using 58" upholstery and need 13 yrds of piping.

I'm stuck before I have even started.lol

Anyone know how to calculate this?
Thank you.

clt3
clt3
Intermediate
OH USA
Member since 2/6/06
Posts: 943
Login to reply to this post

Date: 8/2/12 11:30 AM

Calculating continuous bias

------
Singer 66-16. Singer 600e, Kenmore 158.1913 , Viking 1100, Brother 4000D, Brother Quattro, Bernina 930, White 634DE,
Babylock Evolve, 2 Featherweights ,Pfaff Creative Performance,Janome Coverpro 1000CPX






stirwatersblue
star
stirwatersblue
Intermediate
KS USA
Member since 12/13/08
Posts: 3076
online now
Login to reply to this post

Date: 8/2/12 12:57 PM

Lulurose, you might find this thread from a few weeks ago helpful. I was trying to figure out how much fabric I needed for 10 yards of binding, and the posters were very helpful both with the math, as well as posting multiple tutorials, links, and tips.

------
~Gem in the prairie

lulurose
lulurose
Advanced Beginner
Member since 11/4/09
Posts: 140
Login to reply to this post

Date: 8/2/12 1:01 PM

Thanks, Clt3.

I got as far as...
"The bias length (BL) of each strip is the square root of (2 * Y2) [square 13.5. Multiply by 2. Take the square root.] Therefore, BL is 19.09.
The base width (BW) is the square root of (2 * W2) [square 1.75. Multiply by 2. Take the square root.] Therefore, BW is 2.47.
The number of strips (N) that you can cut across the width is UW / BW [40 / 2.47 = 16.2 (round to the lowest whole number ... partial width strips are unuseable). Therefore, N is 16.
Finally, the amount of linear inches (LI) you'll get from this amount of fabric is N * BL [16 strips times 19.09] Therefore, N is 305.44 inches. "

Which means I'll be guessing from here on out!

lulurose
lulurose
Advanced Beginner
Member since 11/4/09
Posts: 140
Login to reply to this post

Date: 8/2/12 1:03 PM

Sorry, Stir, cross posted. Thank you for the link, off to look it up!

nicegirl
starstarstarstar
nicegirl
Intermediate
DC USA
Member since 5/10/06
Posts: 1718
Login to reply to this post

Date: 8/2/12 1:37 PM

The area you start with will be pretty close to the area you end with (I find the last marked strip is generally too narrow to use).

So figure out how wide you want to cut the piping. Let's say you'll cut your piping 2 inches wide.

13 yards is 468 inches.

Total area needed: length x width
468 x 2=936

Now figure out how wide your fabric is. Let's say it's 60 wide:

length x 60=936
length = 936/60
length=15.6

So I'd cut a piece of fabric 16 or 17 inches long, assuming it's 60 wide; actually, I'd probably cut it 20 inches long just to be on the safe side. For a different width, repeat the math substituting your actual width for 60.

------
http://theslapdashsewist.blogspot.com
=================
2007: purchased 115+, sewed 105+
So close to parity, yet so far

Trying again in 2008
Yards purchased: 133
Yards sewn: Somewhere around 95

2009? I give up

clt3
clt3
Intermediate
OH USA
Member since 2/6/06
Posts: 943
Login to reply to this post

Date: 8/3/12 6:49 AM

OK, OK I get it. Sorry, B.S. in math here. Tell me how wide you are cutting your bias strips and I'll figure it for you!

------
Singer 66-16. Singer 600e, Kenmore 158.1913 , Viking 1100, Brother 4000D, Brother Quattro, Bernina 930, White 634DE,
Babylock Evolve, 2 Featherweights ,Pfaff Creative Performance,Janome Coverpro 1000CPX






lulurose
lulurose
Advanced Beginner
Member since 11/4/09
Posts: 140
Login to reply to this post

Date: 8/3/12 10:18 AM

Thank you for the offer, Clt3.
I'm heading to the sewing room now. I understand the straightforward division and multiplication formula. Should get me where I need to be.

I hope I didn't offend you, I really do appreciate you taking the time to reply. Not your fault that the slightest whiff of algebra makes me break out in hives :0)

CM_Sews
CM_Sews
Intermediate
CA USA
Member since 9/18/04
Posts: 1705
Login to reply to this post

Date: 8/3/12 7:52 PM

For anyone who wants to create a simple spreadsheet, using Shelly Rodgers formula:

Use the top row (row 1) for labels:
A1 Useable Width in inches
B1 Yardage along selvedge edge in inches
C1 Desired width of bias strip
D1 Bias Length (BL)
E1 Base Width (BW)
F1 Number of strips
G1 Linear inches of bias tape.

Use the second row to enter your measurements and to compute. You'll enter measurements in A2, B2, and C2. In D2, E2, F2, and G2, enter the formulas shown below:

A2 (enter the usable width of the fabric in inches, remembering that you will trim off the selvedge)
B2 (enter the length of the fabric along the selvedge edge, in inches)
C2 (enter the width of the bias strip that you need, in inches)
D2 =SQRT((2*(B2*B2)))
E2 =SQRT(2*(C2*C2))
F2 =A2/E2
G2 =(INT(F2))*D2

CMC
(I did this in Excel 2007.)

solosmocker
starstarstar
solosmocker
Advanced
NY USA
Member since 1/23/06
Posts: 1367
Login to reply to this post

In reply to CM_Sews <<


Date: 8/4/12 8:51 PM

Fabulous spread sheet. Thanks so much.

I have come to rely heavily on the Sunset "Slipcovers and Bedspreads" book and have learned so much from it. They have a chart for making 1 5/8ths inch strips of bias for welting. One half yard of 54 inch fabric will make 14 yards of stripping for your welting according to their chart. My personal recommendation would be to make extra. It always takes more than I think.

I also like to use their method for cutting the bias. Its a tad different than other methods and I find gives the most accurately cut strips. Here's the link : Making bias strips by Sunset

------
http://lasewist.blogspot.com/

Go to Page:
Please LOGIN or Join PatternReview
printable version Printable Version

* Advertising and soliciting is strictly prohibited on PatternReview.com. If you find a post which is not in agreement with our Terms and Conditions, please click on the Report Post button to report it. Beginner's Forum >> bias strips

Merchants on PR
Victoria Jones Collection
Timeless Hawaiian styles
Web site
So Vintage Patterns
Thank You for Joining!
Deals!
Fitz Like a Glove Ironing Board Cover
Made In Australia
Deals!
SewBaby
Unique Sewing Patterns
Deals!
Budo Bear Designs
Asian Designs
Web site

Copyright © 2014 PatternReview.com® , OSATech, Inc. All rights reserved.
Conditions of Use | Posting Guidelines | Privacy Policy | Contact Us
Online Sewing Classes
Clone Your Favorite Garment
Fee: $19.99
(Regular $49.00)
Clone Your Favorite Garment

Online Sewing Classes
Altering Pants
Fee: $19.99
(Regular $59.00)
Altering Pants

Simplicity 5983
photo
Review by Trephas200... on 1/16/07
Read Review

Sewing Workshop Soho Coat Pattern
Sewing Workshop Soho Coat Pattern

Details
Price: $22.95
Add to Bag Add to Bag

Sew Chic Knapsack Pattern (ln100)
Sew Chic Knapsack Pattern (ln100)

Details
Price: $5.95
Add to Bag Add to Bag

Oliver + S Tea Party Sundress, Bloomers, and Playsuit Digital Pattern ( Size birth - 24m )
Oliver + S Tea Party Sundress, Bloomers, and Playsuit Digital Pattern ( Size birth - 24m )

Details
Price: $13.95
Add to Bag Add to Bag

Peek-A Boo All Star Sneakers Digital Pattern ( Size 0-18 months )
Peek-A Boo All Star Sneakers Digital Pattern ( Size 0-18 months )

Details
Price: $3.99
Add to Bag Add to Bag

BurdaStyle Magazine 06-2012-134 Dolman Dress
photo
Review by Dellia45 on 1/18/14
Read Review

Simplicity 1468 Pattern ( Size XS-S-M-L-XL )
Simplicity 1468 Pattern ( Size XS-S-M-L-XL )

Details
Price: $18.95
Add to Bag Add to Bag

Kwik Sew 3911 Pattern
Kwik Sew 3911 Pattern

Details
Price: $10.99
Add to Bag Add to Bag

Subscribe to PR Message Board Feed Subscribe to the PR Message Board Feed Add to My Yahoo! Subscribe at NewsGator Online Subscribe at Bloglines Add to MyMSN