Decorative sheet and method for producing decorative sheet

A decorative sheet, comprising:

• a primary film layer;
• and
• a surface protection layer disposed on one surface of the primary film layer, wherein
• the surface protection layer includes, on a surface thereof, a ridged portion protruding in a ridged pattern to form an irregular shape,
• the irregular shape of the surface protection layer has RSm/Ra within a range of 10 or greater and 300 or less,
• the surface protection layer contains an ionizing radiation-curable resin as a main material,
• the ionizing radiation-curable resin contains as a main component a trifunctional acrylic resin having a repeating structure,
• the repeating structure is any of an ethylene oxide structure, a propylene oxide structure, and an ε-caprolactone structure, and
• a ratio of a number of carbon atoms having only single bonds in the main component of the ionizing radiation-curable resin to a total number of carbon atoms in the main component of the ionizing radiation-curable resin (the number of carbon atoms only having single bonds/the number of all carbon atoms) falls within a range of 0.725 or greater and 0.955 or smaller.