Quick Answer
For ice houses, a minimum safe ice thickness is typically around 4-5 inches (10-13 cm) for walking and 8-12 inches (20-30 cm) for supporting light loads. Ice thickness should be measured at the thickest point, not just the surface. The thickness should also be consistent across the area.
Measuring Ice Thickness
To determine the safety of ice for your ice house, you’ll need to measure its thickness. Use an ice auger or a sharp knife to dig down to the water or the ice-rock interface. Measure the thickness at the point where you’ve dug, and note any inconsistencies in the surrounding area. It’s also essential to check the color of the ice: blue or opaque ice is likely too thin.
Ice Thickness Guidelines
A 4-5 inch (10-13 cm) ice thickness is generally considered safe for walking on. However, if you plan to support light loads, such as an ice house or a fishing shack, you’ll want to aim for at least 8-12 inches (20-30 cm) of ice thickness. Keep in mind that wind, temperature fluctuations, and other environmental factors can affect ice thickness, so it’s crucial to check the ice regularly.
Safety Precautions
When walking on ice, always use caution and test your weight on the ice first. Avoid sudden movements, and never walk on ice with a heavy load, as this can increase the likelihood of breaking through. If you do break through the ice, stay calm and slowly remove your gear. Lie flat on the ice with your arms and legs spread out, and wait for help to arrive.
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