A pad for support of equipment, said pad capable of supporting loads of 90,000 kg (100 tons) or more, comprising, (a) a top surface, bottom surface and at least one sidewall comprising fiberglass material, (b) a core having a thickness of at least 8.9 cm (3.5 inches) comprising, (i) a grid formed by fiberglass webbing comprising (a) a first set of at least two web comprising fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, (b) a second set of at least two web of fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, said second set of web oriented at a right angle to said first set of web to form said grid, said web having a thickness of 0.061 to 1.9 cm (0.024 to 0.75 inches) such that said webbing has web modulus of elasticity of at least 6,900,000 kPa (1,000,000 pounds per square inch (psi)), web tensile strength of at least 69,000 kPa (10,000 psi), and web in-plane shear strength of at least 34,000 kPa (5,000 psi); (ii) closed cell material surrounded by said grid; and (iii) resin infused into said grid to form a pad more than 10 cm (four inches) thick and is capable of supporting loads of 90,000 kg (100 tons) or more. (a) a top surface, bottom surface and at least one sidewall comprising fiberglass material, (b) a core having a thickness of at least 8.9 cm (3.5 inches) comprising, (i) a grid formed by fiberglass webbing comprising (a) a first set of at least two web comprising fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, (b) a second set of at least two web of fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, said second set of web oriented at a right angle to said first set of web to form said grid, said web having a thickness of 0.061 to 1.9 cm (0.024 to 0.75 inches) such that said webbing has web modulus of elasticity of at least 6,900,000 kPa (1,000,000 pounds per square inch (psi)), web tensile strength of at least 69,000 kPa (10,000 psi), and web in-plane shear strength of at least 34,000 kPa (5,000 psi); (ii) closed cell material surrounded by said grid; and (iii) resin infused into said grid to form a pad more than 10 cm (four inches) thick and is capable of supporting loads of 90,000 kg (100 tons) or more. (i) a grid formed by fiberglass webbing comprising (a) a first set of at least two web comprising fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, (b) a second set of at least two web of fiberglass material, said at least two web spaced apart from and oriented parallel to each other and 8 cm to 20 cm (3 inches to 8 inches) apart, said second set of web oriented at a right angle to said first set of web to form said grid, said web having a thickness of 0.061 to 1.9 cm (0.024 to 0.75 inches) such that said webbing has web modulus of elasticity of at least 6,900,000 kPa (1,000,000 pounds per square inch (psi)), web tensile strength of at least 69,000 kPa (10,000 psi), and web in-plane shear strength of at least 34,000 kPa (5,000 psi); (ii) closed cell material surrounded by said grid; and (iii) resin infused into said grid to form a pad more than 10 cm (four inches) thick and is capable of supporting loads of 90,000 kg (100 tons) or more.