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Hot Tub Cover Measuring Guide
When it comes to purchasing a replacement hot tub cover, taking proper measurement is the key to receiving the perfect product. Read through these step by step directions to ensure that you are taking accurate measurements for your new spa cover. If you have any questions whatsoever about how to measure a spa cover feel free to contact our team for help. We are on stand by and happy to assist you in ordering the right product for your hot tub or spa.

Deciding What To Measure

When it comes to purchasing a replacement hot tub cover, taking proper measurement is the key to receiving the perfect product. Read through these step by step directions to ensure that you are taking accurate measurements for your new spa cover. If you have any questions whatsoever about how to measure a spa cover feel free to contact our team for help. We are on stand by and happy to assist you in ordering the right product for your hot tub or spa.

Existing cover

If any of the following apply to you, measure your existing cover:

  • Cover must be in decent condition. Natural wear and tear is fine.
  • Cover has not warped, become waterlogged, or changed shape since its purchase.
  • You are happy with the way the current cover fits.
Hot tub

If any of the following apply to you, measure your hot tub:

  • You have no existing cover.
  • Your current cover is warped, has become waterlogged, or changed shape since its purchase.
  • Unhappy with the way your current cover fits.

How to Measure

Round up measurements to the nearest half inch or inch. A cover that is 1-2 inches too large will fit just fine but a cover that is too small will decrease the insulation. If your measurements are close to being perfectly square (ie: 78.5” x 78”), it probably is a perfect square.

Where to Measure

Choose which installation type looks most like yours:

Classic spa cabinets

Measure the widest points on the acrylic lip shown by the arrows.

Spa cabinets with top rail

Measure the widest points on the top rail shown by the arrows.

In ground spas

Measure the widest points above ground shown by the arrows.

Choose a Shape and Measure

Choose which installation type looks most like yours: Hot tubs come in various shapes and sizes. Use our comprehensive chart to select the right dimensions for your spa.

Choosing a Fold/Hinge

Understanding the folds and hinges of spa covers is crucial. Select the appropriate fold that suits your setup.

  • An "A Fold" splits the A dimension in half.
  • A "B Fold" splits the B dimension in half.
  • For a perfectly square cover, no fold/hinge is needed.

    Considerations

  • Determine the location of the control panel; covers usually fold away from it.
  • The longer side typically gets folded in half, but not always.
  • Check for obstructions (e.g., fence) that might affect how the cover opens and closes.
The Corner Radius

Using a carpenter’s square

If you don’t have a square handy:

Measuring the Skirt and Strap
Skirt Measurement
A 4” standard skirt length will be used if no custom length is requested.
The cover skirt is the one that hangs around the edge from the bottom of your cover. Measure the skirt of your spa from the bottom of the cover down. For no skirt, enter zero; the minimum length for a skirt is 1.5”.
Strap Measurement
A 9” standard strap length will be used if no custom length is requested.
To get an accurate measurement of the safety strap, you need to measure it from the bottom of the cover down and include the skirt length but not the clip. The strap needs to hang at least 1.5” below the skirt. It is also good to note that due to production variations it cannot be guaranteed you will receive a matching strap placement. Straps are required on every cover.

Have you completed your measurements? If so, you’re ready to purchase your custom spa cover. Browse our customization options and place your order today

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