A ladder comprising: first and second rails spaced apart and with rungs in between, the rails defining first and second ladder sides; and a telescopic stabilizer bar disposed at the foot of the ladder, the telescopic stabilizer bar comprising elongate first and second stabilizer portions , each stabilizer portion in sliding engagement with a connector bar extending transversely between the first and second rails , wherein the first and second stabilizer portions are slideable along the connector bar from: a first, stowed, position where the first and second stabilizer portions are in an at least partially overlapping relationship, with the connector bar in between; to a second, in use, position where at least one of the stabilizer portions is slid along the connector bar to extend the telescopic stabilizer; wherein sliding engagement of at least one stabilizer portion to the connector bar is by means of; at least one longitudinally extending flange or other formation on at least one stabilizer portion fitting into a corresponding longitudinally extending groove in the connector bar ; or at least one longitudinally extending flange or other formation on the connector bar fitting into a corresponding longitudinally extending groove on at least one stabilizer portion ; and characterized in that the first and second stabilizer portions each take the form of an elongate bar having a generally C shaped cross section along its length. first and second rails spaced apart and with rungs in between, the rails defining first and second ladder sides; and a telescopic stabilizer bar disposed at the foot of the ladder, the telescopic stabilizer bar comprising elongate first and second stabilizer portions , each stabilizer portion in sliding engagement with a connector bar extending transversely between the first and second rails , wherein the first and second stabilizer portions are slideable along the connector bar from: a first, stowed, position where the first and second stabilizer portions are in an at least partially overlapping relationship, with the connector bar in between; to a second, in use, position where at least one of the stabilizer portions is slid along the connector bar to extend the telescopic stabilizer; wherein sliding engagement of at least one stabilizer portion to the connector bar is by means of; at least one longitudinally extending flange or other formation on at least one stabilizer portion fitting into a corresponding longitudinally extending groove in the connector bar ; or at least one longitudinally extending flange or other formation on the connector bar fitting into a corresponding longitudinally extending groove on at least one stabilizer portion ; and characterized in that the first and second stabilizer portions each take the form of an elongate bar having a generally C shaped cross section along its length. a first, stowed, position where the first and second stabilizer portions are in an at least partially overlapping relationship, with the connector bar in between; to a second, in use, position where at least one of the stabilizer portions is slid along the connector bar to extend the telescopic stabilizer; wherein sliding engagement of at least one stabilizer portion to the connector bar is by means of; at least one longitudinally extending flange or other formation on at least one stabilizer portion fitting into a corresponding longitudinally extending groove in the connector bar ; or at least one longitudinally extending flange or other formation on the connector bar fitting into a corresponding longitudinally extending groove on at least one stabilizer portion ; and characterized in that the first and second stabilizer portions each take the form of an elongate bar having a generally C shaped cross section along its length. <EOS>