Product Features ProductnameMultilayerengineeredflooring for underneath heating systemConstructionOurmultilayerengineeredflooringiscomposedof9layersofplywoodandonetopwoodveneer.EndsmatchwithTougueandGroovestructrue.These9layersofplywoodaregluedtogether,andthepossibletypesofhardwoodusedfortopveneerincludeoak,blackwalnut,birch,maple,teak,ash,etc.Totalthickness15mmor18mmLayerthickness0.6/1/2/3/4mmGradeA,B,CgradeOrmixedascustomer'srequestColorNatural,antiqueFinishSmoothvarnished,hand-scraped,smokedgrain,etcMOQ300m2/speciesPackingCarton&PalletLoading1650m2/20FT(withoutpallet)1450m2/20FT(withpallet)Deliverytime15-20days Suitable for underneath heating system During extreme changes in the weather, natural hardwood flooring can expand and contract so much that it will buckle or warp. The core layer of an engineered hardwood floor gives it the ability to expand and contract without buckling or warping as natural hardwood flooring would. This means that engineered hardwood flooring is less affected by environmental conditions and can be installed in more areas than natural hardwood flooring. For example, unlike a natural hardwood floor, you can install an engineered hardwood floor in a humid or damp basement. An engineered hardwood floor can also be installed over radiant heating system without suffering any damage.