Plastic Molds for Ponds

Size and Shape Selection

• Plastic molds for aquatic gardens and ponds come in a variety of shapes and sizes. The notion of being limited to round ponds or a few set shapes, when opting for prefabricated pond molds, is no longer accurate. Consider what type of pond you are intending to construct. A fish pond requires substantially more water than a pond that will only contain aquatic plants or act as a water feature. Choose a size and shape that fits the space you expect to place your pond, as one downside of plastic pond molds is they cannot easily be expanded.

Leak Resistance

• When installed, ponds of all varieties are subject to many subtle changes in the soil and endure freezing and refreezing through the winter. Plastic pond molds hold up to some stresses better than their soft vinyl counterparts. For instance, plastic molds will be less likely to be punctured by small roots and stones in the soil. However, the rigid plastic construction also allows for less flexing when subject to larger roots or rapidly fluctuating temperatures. Plastic molds are excellent choices for ponds when installed correctly, in soil free of sharp rocks, and with a buffer layer of sand.

Pet Proof

• If you live in a house with dogs, pet-proof pond material is a necessity. With vinyl liners, your pond is one visit from Fido away from substantial tearing and serious leakage. Plastic pond molds can still be damaged by large dogs, but the likelihood is reduced as the plastic is a much thicker gauge and more resistant to tearing.

Availability and Cost

• Plastic molds for ponds can be purchased at virtually any big box store or hardware supply outlet. Their ability to be mass produced makes them cost significantly less than a custom-designed pond with a flexible pond liner. They are easily installed and make an outdoor water garden no more than a weekend away for any do-it-yourselfer.