Method # 2

Radius Corners

The term "radius corners" scares a lot of people. It brings back bad memories of high school math class! 

Many spa covers have rounded corners. In order for us to make you a cover, we must know how rounded they are.  This is determined by figuring out their radius dimension.

The diameter of a circle is the measurement across the center. The radius of a circle is half of its diameter. Very simple.

Method # 1 for determining radius:
To determine the radius of your cover's corners, take a sheet a paper and trace around one of the curved corners of the cover.  You will get a curved line similar to those shown at the left.  Remove the paper and complete the circle.  You can do this freehand, and it doesn't have to look too pretty!  Just try to get it pretty close.  Then measure across the middle of the circle you drew, and divide by 2. That is the radius of you cover's corners. We have a template that you can download here to help you out. It measures 7.5 by 10 inches exactly. Use a ruler against the ruler shown to be sure you've printed it the right size.

Download Radius Corner Measuring Template (Right Click, Save Target As, then open in a PhotoShop-type Program to get the true proportion of the radius diagram)

Method # 2 for determining radius:
Another way to measure the radius is by placing a carpenter's square on the outside corner of you spa.  The distance between the corner of the carpenter's square and the place where it touches the spa (A) equals the radius of the curve (B).

Method # 3 for determining radius:
If you still cannot figure it out, or are unsure,  please fax us a tracing (drawing) of your radius corner (1-702-568-0924).  That way there can be no confusion.

Remember, if you are a little too big, the cover will still fit (and work) fine.  However if you are even the slightest bit too small, the cover will not sit properly on the spa.  If you have to guess one way or the other, go bigger (order the cover a little bigger...order with a smaller radius).  The smaller the radius measurement, the 'bigger' the cover will be (more material).  The larger the radius, the more the cover will be "cut off" (less material).

For example, take a look at the photo to the left.  That shows the spa touching the carpenter's square at  6 1/2 inches.  If you ordered a 6 1/2 inch radius cover, the cover would either be a little too small, or fit very snuggly.  If you ordered it as a 6 inch radius, it would be a little bit bigger, the skirt will hang down nicely, and you would not have to struggle to get the cover on.  You can't go wrong with the cover being a little bit bigger (smaller radius measurement).