Welding Cap Size, Depth & Brim Info
Welding caps aren't one-size-fits-all, and finding the right fit involves more than choosing a hat size. At HD Welding Hats, there are three measurements to consider: size, depth, and brim length.
Size determines the circumference of the cap band. Depth determines how far down the cap sits on your head. Brim length determines how far the brim extends from the cap.
Each measurement serves a different purpose, and your preferred fit will depend on your head shape, how you wear your cap, and personal preference.
The information below explains these measurements and how to choose the options that work best for you.
How to Measure
Use the image below as a guide:
- Green line: Size (inches around)
- Blue line: Depth (inches, one side only)
- Pink line: Brim length (in inches)
Hat Size Measurements
| Hat Size | Band Measurement |
|---|---|
| 7 | 22 ⅛" |
| 7 ⅛ | 22 ½" |
| 7 ¼ | 23" |
| 7 ⅜ | 23 ⅜" |
| 7 ½ | 23 ¾" |
| 7 ⅝ | 24" |
| 7 ¾ | 24 ¼" |
| 7 ⅞ | 25" |
Measuring Your Head
Use a soft measuring tape to measure around your head where you normally wear your welding cap band. Keep the tape comfortably snug without pulling it tight.
If you already have a welding cap that fits well, you can use it as a reference, but don't assume the size will be identical between manufacturers.
Welding cap sizing is not standardized across manufacturers. Measurements, construction, and fit can vary from one maker to another.
If you're switching to HD Welding Hats from another brand and aren't sure which size to choose, contact me. Let me know which brand you've been wearing, and I may be able to help you compare measurements.
These are the finished measurements of the hat band. Cotton fabrics have a bit of natural stretch that varies slightly between fabrics.
If you’re between sizes, choose the one closest to your actual head measurement.
Custom sizes are available to the nearest ⅛" (for size) and ¼" increments for depth and brim. Add your custom request in the text box on the product page.
Hat Depth Options
Understanding Depth: High Crown vs. Low Crown
Years ago, welding caps were commonly offered in two fits: high crown and low crown. When I started making welding caps, those were the terms I used, too.
At HD Welding Hats, the traditional low-crown cap was 6.5 inches deep, and the high-crown cap was 7.5 inches deep.
As customers began requesting additional depths, including something between high and low crown, I changed to using actual depth measurements in inches. This made it easier to offer more choices without relying on just two descriptions.
Today, HD Welding Hats offers several depth options.
Depth is measured from the top center of the cap down to the lower edge of the band at the ear, as shown in the measuring image above.
Are High-Crown and Low-Crown Measurements Standard?
No. There is no standardized depth measurement used by all welding cap manufacturers.
One manufacturer's high-crown cap may be different from another manufacturer's high-crown cap. The same applies to low-crown caps.
If you're accustomed to ordering by high or low crown, use the measurements as your guide rather than assuming the terminology means exactly the same thing between brands.
Your preferred depth will depend on your head shape and how you like your cap to fit. There is no single depth that's right for everyone.
| Depth | Description |
|---|---|
| 6" | Shortest depth, measured from top center (TDC) to band edge at ear. Available by request only; not for Pipeliner Fancy caps or styles with sweatbands. |
| 6 ½" | “Short crown.” Usually meets the top edge of the ear. |
| 7" | Mid-depth — our most popular fit. Falls between short and high crown. |
| 7 ½" | “High crown.” Typically covers the top half of the ear. |
| 8" | Longest depth, ideal for sizes 7 ⅝ and larger, or anyone who prefers more coverage. |
Everyone’s fit preference is different — there’s no right or wrong choice.
Brim Length Options
| Brim Length | Description |
|---|---|
| 2" | Shortest brim. Great for smaller sizes, shorter necks, or minimal obstruction. |
| 2 ½" | Standard brim — a balanced choice that works for most welders. |
| 3" |
Longer brim for added coverage of ear and neck, without getting in the way. |
Choosing Your Brim Length
Unlike a baseball cap, a welding cap isn't necessarily worn with the brim facing forward. Welders wear their caps in different positions depending on personal preference, the work they're doing, and the equipment they're using.
Some wear the brim over an ear, others toward the back, and some turn or flip the brim as needed throughout the workday.
There is no single brim position that works for every welder or every welding job.
Brim length is measured from where the brim attaches to the cap to its outer edge. Choose the length that provides the coverage and fit you prefer.