Terrace canopy comprising a beam (3; 5), the beam having a top side, a bottom side, an inner side and an outer side, and comprising a base part that, in its cross-section, is provided with: - a screen cavity configured to hold a screen roller, which screen cavity is delimited by an upright inner side wall and a horizontal top wall extending from the upright inner side wall in the direction of the outer side of the beam; - an upright outer side wall extending from the end of the horizontal top wall and provided at the top with a first upper connection means; and - an internal space above the screen cavity, wherein the upright outer side wall, on its outwardly facing side, is provided with a first connection means, characterized in that the beam is further provided with: a wall profile and a second closure profile, wherein the wall profile is located on the outer side of the upright outer side wall and is configured to guide and/or hold a wall panel (6b; 6c; 6d) and is provided with a first complementary connection means, a second complementary connection means and a first upper connection means, the wall profile being connected to the base member by connecting its first complementary connection means to the first upper connection means and its second complementary connection means to the first connection means, wherein the second closure profile closes off the internal space and is provided with a first complementary connection means, wherein the second closure profile is connected to the wall profile by connecting its first complementary connection means to the first upper connection means of the wall profile, and in that said wall profile and said second closure profile can be removed and said second closure profile can be replaced by a first closure profile and vice versa, wherein said first closure profile can close off the internal space and is provided with a first complementary connection means, the first closure profile being able to be connected to the base part by connecting its first complementary connection means to the first upper connection means. - a screen cavity configured to hold a screen roller, which screen cavity is delimited by an upright inner side wall and a horizontal top wall extending from the upright inner side wall in the direction of the outer side of the beam; - an upright outer side wall extending from the end of the horizontal top wall and provided at the top with a first upper connection means; and - an internal space above the screen cavity, wherein the upright outer side wall, on its outwardly facing side, is provided with a first connection means, characterized in that the beam is further provided with: a wall profile and a second closure profile, wherein the wall profile is located on the outer side of the upright outer side wall and is configured to guide and/or hold a wall panel (6b; 6c; 6d) and is provided with a first complementary connection means, a second complementary connection means and a first upper connection means, the wall profile being connected to the base member by connecting its first complementary connection means to the first upper connection means and its second complementary connection means to the first connection means, wherein the second closure profile closes off the internal space and is provided with a first complementary connection means, wherein the second closure profile is connected to the wall profile by connecting its first complementary connection means to the first upper connection means of the wall profile, and in that said wall profile and said second closure profile can be removed and said second closure profile can be replaced by a first closure profile and vice versa, wherein said first closure profile can close off the internal space and is provided with a first complementary connection means, the first closure profile being able to be connected to the base part by connecting its first complementary connection means to the first upper connection means. wherein the upright outer side wall, on its outwardly facing side, is provided with a first connection means, characterized in that the beam is further provided with: a wall profile and a second closure profile, wherein the wall profile is located on the outer side of the upright outer side wall and is configured to guide and/or hold a wall panel (6b; 6c; 6d) and is provided with a first complementary connection means, a second complementary connection means and a first upper connection means, the wall profile being connected to the base member by connecting its first complementary connection means to the first upper connection means and its second complementary connection means to the first connection means, wherein the second closure profile closes off the internal space and is provided with a first complementary connection means, wherein the second closure profile is connected to the wall profile by connecting its first complementary connection means to the first upper connection means of the wall profile, and in that said wall profile and said second closure profile can be removed and said second closure profile can be replaced by a first closure profile and vice versa, wherein said first closure profile can close off the internal space and is provided with a first complementary connection means, the first closure profile being able to be connected to the base part by connecting its first complementary connection means to the first upper connection means.