Abstract: The invention provides a method of cutting a wet gel sheet. The method includes positioning a wet gel sheet on a cutting support surface, so that a bottom face of the wet gel sheet is supported by the cutting support surface. The wet gel sheet is a porous material comprising solvent in at least some pores. The wet gel sheet is cut by moving a blade along a cutting path. The invention also provides an aerogel sheet formed by a process that includes the cutting method, as well as certain articles that include the cut aerogel sheet.