Dear Customer, thank you for contacting Firmoo. I'm afraid that each frame has a fixed size and we are unable to customize it. Also, we have different frame suppliers and they have different measuring methods, so we re-measure the frame size and upload it to the website. Therefore, you could rely on the measurement listed on the frame page. We understand that choosing a perfect frame size online can be tough sometimes so we suggest that you could please check this link
https://www.firmoo.com/help-p-1.shtml for reference. For any further questions or immediate assistance, you may also call our call center thru toll-free hotline at 1-855-487-6006 opens every day from 7 a.m.- 4 p.m. PDT. You can also contact us through our Live Chat Support Team: Start a live chat (Everyday, 3 a.m.- 12-midnight PDT.) or email us at service@firmoo.com. Please stay safe and healthy!

Firmoo's replyDec 26 , 2020