A cladding element comprising: a front face; a rear face opposite the front face; opposing first and second contoured side profiles (3006, 3008) between the front face and the rear face; the first contoured side profile being configured to mate with the second contoured side profile of an adjacent cladding element; the first contoured side profile comprising; a first concave arcuate bevelled surface (3010, 3011) extending from the front face of the cladding element toward a first recessed portion having a substantially planar front-facing surface set rearward from the front surface of the cladding element; a junction connecting the substantially planar front-facing surface of the first recessed portion with the rear face; and a first angled surface which extends from the junction to meet the rear face; the second contoured side profile comprising; a second recessed portion having a substantially planar rear-facing surface set forward from the rear face of the cladding element; a second concave arcuate bevelled surface (3011, 3012) extending from the front face of the cladding element toward the second recessed portion, characterised in that the first contoured side profile further comprises a first abutment surface extending substantially perpendicular to both the front face and the rear surface from the first concave arcuate bevelled surface; and the second contoured side profile further comprises a second abutment surface extending from the second concave arcuate bevelled surface; whereby the second abutment surface extends substantially perpendicular to both the front surface and rear surface; wherein an offset section connecting the rear-facing surface of the second recessed portion with a second angled surface extends from the offset section to meet the rear face, the offset section extending substantially perpendicular to both the front face and the rear face. a front face; a rear face opposite the front face; opposing first and second contoured side profiles (3006, 3008) between the front face and the rear face; the first contoured side profile being configured to mate with the second contoured side profile of an adjacent cladding element; the first contoured side profile comprising; a first concave arcuate bevelled surface (3010, 3011) extending from the front face of the cladding element toward a first recessed portion having a substantially planar front-facing surface set rearward from the front surface of the cladding element; a junction connecting the substantially planar front-facing surface of the first recessed portion with the rear face; and a first angled surface which extends from the junction to meet the rear face; a first concave arcuate bevelled surface (3010, 3011) extending from the front face of the cladding element toward a first recessed portion having a substantially planar front-facing surface set rearward from the front surface of the cladding element; a junction connecting the substantially planar front-facing surface of the first recessed portion with the rear face; and a first angled surface which extends from the junction to meet the rear face; the second contoured side profile comprising; a second recessed portion having a substantially planar rear-facing surface set forward from the rear face of the cladding element; a second concave arcuate bevelled surface (3011, 3012) extending from the front face of the cladding element toward the second recessed portion, characterised in that the first contoured side profile further comprises a first abutment surface extending substantially perpendicular to both the front face and the rear surface from the first concave arcuate bevelled surface; and the second contoured side profile further comprises a second abutment surface extending from the second concave arcuate bevelled surface; whereby the second abutment surface extends substantially perpendicular to both the front surface and rear surface; wherein an offset section connecting the rear-facing surface of the second recessed portion with a second angled surface extends from the offset section to meet the rear face, the offset section extending substantially perpendicular to both the front face and the rear face. a second recessed portion having a substantially planar rear-facing surface set forward from the rear face of the cladding element; a second concave arcuate bevelled surface (3011, 3012) extending from the front face of the cladding element toward the second recessed portion, characterised in that the first contoured side profile further comprises a first abutment surface extending substantially perpendicular to both the front face and the rear surface from the first concave arcuate bevelled surface; and the second contoured side profile further comprises a second abutment surface extending from the second concave arcuate bevelled surface; whereby the second abutment surface extends substantially perpendicular to both the front surface and rear surface; wherein an offset section connecting the rear-facing surface of the second recessed portion with a second angled surface extends from the offset section to meet the rear face, the offset section extending substantially perpendicular to both the front face and the rear face.