Square Spa Cover
With One Cut Corner
Are you replacing your old hot tub cover with a new one? If so, you can simply take all the measurements needed from the old cover, unless it is weathered and warped. If your old cover doesn’t lie flat, or if you don’t have another hot tub cover to refer to, you’ll need to take measurements for your new cover by measuring your hot tub directly.
A square-shaped spa with a cut corner is unique. Even though it is shaped like a square, you’ll need to measure all the sides, in case there are any anomalies. View the figure and instructions below. You may also wish to provide extra information about where the controls to your tub are located—in this way, the manufacturer will know where to place the fold for your new cover so that you can readily access the controls.
Does it matter whether you measure from the edge of the wood rim or from the acrylic tub lip? This is simply a personal preference. As long as your figures are accurate, the cover will seal in the heat and be energy efficient. Most people use the acrylic tub to obtain their numbers, measuring from lip to lip. However, if you are concerned about leaf litter and other debris collecting on the top edge of the wooden cabinet, you’ll want to take measurements from the wood rim.
You’ll also need to consider the skirt or flap that hangs down from the seam (refer to the figure below). It should be hanging straight down to avoid heat seepage. When you take measurements for your new cover, it needs to be long enough to cover the spa acrylic or the wood cabinet rim (3” is an average length).
For the skirting, in addition to as all the measurements for your tub cover, add an inch or so to avoid any errors. Your new or replacement cover needs to be large enough to insulate your tub. It’s okay if it is a bit larger than the true measurements.