Chair Care Patio will cut your straps SHORTER than the measurement you enter below based on the strap installation method. Wrap your tape measure around the frame just like the vinyl is wrapped around the frame. For more information on how to measure, go to the tab below "How To Measure" for precut vinyl strap. When you are ready to order, select the vinyl strap width, vinyl strap color, vinyl strap configuration and the hole to hole measurement in inches. Measure to the closest 1/4". The final cut size will be automatically calculated for you based on our proven formula. Precut straps are not returnable or refundable due to incorrect size or color. Please measure carefully before entering your order. Vinyl colors may vary based on the interpretation of your computer monitor. For truest color match please order color samples here prior to ordering. *PLEASE DO NOT DEVIATE FROM OUR FORMULA! PRECUT VINYL STRAPS CANNOT BE RETURNED.* Our web site provides detailed vinyl strap installation and measuring instructions. See our vinyl instructions at the links below.