A support (14) for an article has a body (22) arranged for length adjustment along a length adjustment axis (65). A tensioning device (26) is connected to the support (14) and adjustment of the tensioning device (26) shortens or lengthens a length of the support (14) along the length adjustment axis (65). The body (22) defines at least one opening (28) overlapping at least part of the length adjustment axis (65) such that length adjustment is governed by modification of the size of the at least one opening (28) according to adjustment by the tensioning device (26).