
How To Measure For Your
Spa Cover  Part 2
Shapes and Radius Corners
How To Measure A Hot Tub Spa Cover For Replacement 
Spas come in a variety of "standard" shapes. Determining your unit's shape will help you order the proper cover. Square = L x W

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: We do not recommend using this method
unless absolutely necessary. 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.



Method #
2 for determining radius:
 We recommend
using this method 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). Remember, if you are a little too big, the cover will still fit 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).

How to measure your spa cover  part 1