Trailer system, which comprises: - a first trailer module, which first trailer module comprises: - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the first trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the first trailer module, - a first jack system comprising a first jack cradle, which first jack cradle comprises: - a jack holder, and a jack which is accommodated in the jack holder, - a primary cradle connector, which is connected to the primary loading bed connector of the first trailer module and therewith connects the first jack cradle to the first trailer module, wherein the jack holder of the first jack cradle extends at least partly below the upper surface of the loading bed of the of the first trailer module, wherein the trailer system further comprises a second trailer module, which second trailer module comprises: - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the second trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the second trailer module, and wherein the first jack cradle comprises a secondary cradle connector, which is connected to the primary loading bed connector of the second trailer module and therewith connects the first jack cradle to the second trailer module, and wherein the first jack cradle is arranged between the first trailer module and the second trailer module. - a first trailer module, which first trailer module comprises: - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the first trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the first trailer module, - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the first trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the first trailer module, - a first jack system comprising a first jack cradle, which first jack cradle comprises: - a jack holder, and a jack which is accommodated in the jack holder, - a primary cradle connector, which is connected to the primary loading bed connector of the first trailer module and therewith connects the first jack cradle to the first trailer module, wherein the jack holder of the first jack cradle extends at least partly below the upper surface of the loading bed of the of the first trailer module, - a jack holder, and a jack which is accommodated in the jack holder, - a primary cradle connector, which is connected to the primary loading bed connector of the first trailer module and therewith connects the first jack cradle to the first trailer module, wherein the trailer system further comprises a second trailer module, which second trailer module comprises: - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the second trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the second trailer module, - a plurality of wheels, - a loading bed, - a primary loading bed connector for rigidly connecting the loading bed of the second trailer module to a loading bed of a further trailer module to form a combined rigid loading bed, which primary loading bed connector is arranged below an upper surface of the loading bed of the second trailer module, and wherein the first jack cradle comprises a secondary cradle connector, which is connected to the primary loading bed connector of the second trailer module and therewith connects the first jack cradle to the second trailer module, and wherein the first jack cradle is arranged between the first trailer module and the second trailer module.