The paper presents the results of the researchwork performed on the behaviour of the door framesmade of laminated MDF (cherry and walnut foil) onimmersion in water. The MDF boards were purchasedfrom two different suppliers. The immersion wasmade untill the critical limit was reached. when thedimensional characteristics of the frame came out ofthe field of tolerances. https://countryscenesaddleryandpetsuppliers.shop/product-category/bridle-and-breastplate-2/