sturdy u safety one deck foundation base can support a weight of 2200lbs showing its robust loadbearing capacity the diameter of base is 200mm enough for supporting joist stably ensuring the sturdy of floating deck for your family safetypremium material adjustable deck support is made of antiuv polypropylene material offering high quality and longterm durability designed to last for over 10 yearsit makes a perfect combination of durability and lightweight solving the problem of traditional concrete deck foundation being too heavy and the unique material enhances your installation experienceprotect your deck deck support pedestal can raise the level of joist making deck keep a certain distance from the ground protect the deck from moisture and erosion prolonging wood deck lifespans saving the cost of deck maintenance in the futureadjustable height adjustable deck foundation base is specially designed for uneven ground level its height adjustment range is 1330mm to 23 60mm suitable for beam you could use these to easily order your floating deck joist effortlessly helping you get a clean and neat deck platform foundationcomplete deck accessories provide different deck accessories adjustable deck foundation base support m031 is suitable for floating deck project deck starter clips m028 and hidden fasteners m029 are special deck nails for seamless deck installation