Square Spa Covers
The square hot tub cover is the easiest cover to measure. Simply measure your outside lip to lip, and add 1/2″ to each dimension. The only other dimension you will need is the skirt length.
Rectangle Hot Tub Covers
This is the same technique as the square spa, but make sure you request the fold direction you require. Most companies will by default cut the longest of the two sides in half.
Square or Rectangle with Radius Corners
Follow the square and rectangle spa cover procedure and add the radius measurement.
Round Hot Tub Covers
It is simple to measure a cover for a round hot tub. You only need the lip to lip measurement. If your old cover is measurable just measure across the seam. Remember to add 1/2″ of play. The only other measurement needed is the skirt length.
Octagon Covers
For the octagon spa cover, measure from lip to lip and add 1/2″ of play. Also, measure one panel of the octagon from point to point. The only other measurement needed is the skirt length.
