800-982-6966, M-F 8-5 PST | Contact Us | Order Tracking
Home > Pool Liners > Inground Pool Liners > Thickness: Mil vs. Gauge

Pool Liner Thickness: Gauge vs. Mil

What's the difference? What does it mean in inches or mm?

30 mil liner vinyl measured by digital calipers

Finding the right liner for your pool is difficult enough without having to worry about the thickness of the material (vinyl) that is being used. Most pool professionals can't even tell you the official difference between vinyl gauge and mil measurements. What's worse, the unit "gauge" doesn't always mean the same thing from one industry to the next. For example, when measuring items like wire, shotgun barrels, sheet metal, and hypodermic needles, the thickness or diameter increases as the gauge decreases (they are inversely proportionate). While for sheet vinyl, used for pool liners, and photographic film, the thickness or width of the material increases as the gauge increases (they are directly proportional).

Luckily, all you have to worry about right now is vinyl gauge and mil as they relate to pool liners. For your convienence and better understanding, Ameri-Brand has researched mil and gauge standards and compiled information from manufacturers across the vinyl industry. The table below shows a side-by-side comparison of mil and gauge sizes that are commonly used for vinyl liners. You will also see the "average thickness" of these materials in the standard measuring units of inches and millimeters. You may be suprised to learn that each of these common liner thicknesses is thinner than a small piece of American coinage, the dime.

Common Liner Units Liner Thickness (avg.)*
Mil Gauge inches mm
- 30 0.0260 0.6604
- 25 0.0223 0.5652
- 20 0.0185 0.4699
20 - 0.0205 0.5207
25 - 0.0250 0.6350
30 - 0.0275 0.6985
40 - 0.0405 1.0287
Dime (for comparison) 0.0490 1.2446

*Averages based on multiple measurements, taken from vinyl samples provided by multiple liner manufactures and vinyl suppliers. Digital calipers (shown above) were used to take all measurements.

Outstanding Products, Pricing, & Service from
the Professionals at Ameri-Brand Products Inc.
How To Navigate Our Inground Pool Liner Section
Over 525000
Online Orders
Call Toll-Free: 1-800-982-6966
International Orders Fax: 530-589-2510
Int'l: 001-530-589-2887
Open M-F, 8AM to 5PM (PST)
Ameri-Brand Products Inc.
4619 Olive Hwy.
Oroville, Ca 95966
Payment options
Accepting All Major Debit/Credit Cards, PayPal, & Google Checkout

Have an existing cover than needs fixing or replacing? Try Copy Covers!

If you're searching for discount sale prices on Inground Pool Liners and want the best online bargain pricing use the green "Get Prices" link on the upper right hand corner of this page. We invite you to compare the quality, value, and warranty of our merchandise. We offer coupon-less sales that help you shop and get what you need at a low cost. We're proud to be a favorite stop for Do it yourself DIY enthusiasts and professional dealers alike.

Many customers tell us that they are looking for Inground Pool Liner providers that are "closest to me" or Inground Pool Liner dealers "near me". We are pleased to let you know that over the last 26+ years we have perfected the art of remotely supplying our customers with the best Custom size and Custom shaped products available. Typically, we can provide better service, prices, & quality than a local company or individual. Because we have literally served tens of thousands of satisfied customers online and over the phone, our product knowledge and application expertise simply cannot be surpassed. Got a tough situation? Give us a call. We're here to help you make educated decisions.

Looking for Inground Pool Liner replacement parts, accessories, or instructions and guides on how to repair or fix a used or older item, or on how to make a brand new item? Our web pages can provide the latest top quality information and relevant product education. Try our free online care and maintenance guide pages to learn about cleaning, storing, and other related procedures to get the most from your purchase.

Need an installation manual on one of our products? Our online pages provide step by step details that can help you install them. Many of them include pictures, images, and diagrams showing how to get the optimum service from the products and kits you buy from us. If you desire more information on Inground Pool Liners, please call the toll-free number above.

Ameri-Brand Products Inc, providing Inground Pool Liners for the areas & communities of Warner Robins, Duluth, Kansas City, Louisville/Jefferson County, Vallejo, Thornton, Davenport, Fayetteville, Baldwin Park, Upland, League City, Gresham, Albany, Livonia, Pittsburgh, Denver, Muncie, Warwick, Riverside, and Escondido with quality Inground Pool Liners.

Copyright ©  1998-2024  Ameri-Brand Products Inc.  All rights reserved - Privacy Policy

New Dome Videos