Unlike Henry Moore, Hepworth did not usually make maquettes - small preliminary studies of the composition - before proceeding to the full-size work.
 However, in this case, she make several smaller works on similar themes.

The sculpture develops the geometrical theme of quadrilateral planes pierced by circles from her 1963 bronze Squares with Two Circles (BH 347).
 Parallels can also be drawn to the abstract paintings and panel relief sculptures of Hepworth's former husband Ben Nicholson (they were divorced in 1951).
 In 1966 Hepworth made two slate sculptures, the 12 inches (30 cm) high Maquette for Large Sculpture: Four-Square (Four Circles) (BH 407) in an edition of 3, and then the unique 24 inches (61 cm) high Four-Square (Four Circles) (BH 416).
 The larger slate sculpture was cast in bronze in 1966 as Four-Square (Four Circles) (BH 428) in an edition of "7+1" (seven casts for sale and one artist's model).

Scaling up these smaller sculptures, Hepworth made a plaster model of the full-size sculpture, 4.29 by 1.99 by 2.295 metres (14.07 ft × 6.53 ft × 7.53 ft), on an aluminium armature.
 The five slab-like elements were then cast separately in bronze by the Morris Singer foundry in London.
 The separate pieces were welded together to create the completed sculpture, in an edition of "3+1" (three casts for sale, plus one artist's copy).

The artist's copy (0/3) is owned by the Hepworth estate, and is displayed on loan in the gardens of the Barbara Hepworth Museum in St Ives, Cornwall.
 Cast 1 has been held by the Norton Simon Museum in Pasadena since 1969.
 Cast 2 has been displayed in the grounds of Churchill College, Cambridge since 1968, where students are encouraged to walk or with within the work; it was allocated to the Fitzwilliam Museum in 2000, after being accepted in lieu of inheritance tax by the Department for Culture, Media and Sport, from the estate of the artist.
 Cast 3 was donated to the Mayo Clinic in Rochester, Minnesota in 1979, as a memorial for Constantine P. Goulandris, member of the Greek shipping dynasty that included Basil Goulandris and Nikos Goulandris.

An example of the 12 inches (30 cm) slate maquette was put on sale at Bonhams in 2003, estimated at £40,000 to £60,000, but failed to sell.
 An example was sold in England in 2009 for £60,000, and resold in at Deutscher and Hackett in Australia in 2014 for AUS$348,000.
 An example of the 24 inches (610 mm) bronze Four-square (Four circles) was sold at Christie's in 2010 for US$314,500, and one at Sotheby's in 2017 for £488,750.
Unlike Henry Moore, Hepworth did not usually make maquettes - small preliminary studies of the composition - before proceeding to the full-size work.  However, in this case, she make several smaller works on similar themes.
The sculpture develops the geometrical theme of quadrilateral planes pierced by circles from her 1963 bronze Squares with Two Circles (BH 347).  Parallels can also be drawn to the abstract paintings and panel relief sculptures of Hepworth's former husband Ben Nicholson (they were divorced in 1951).  In 1966 Hepworth made two slate sculptures, the 12 inches (30 cm) high Maquette for Large Sculpture: Four-Square (Four Circles) (BH 407) in an edition of 3, and then the unique 24 inches (61 cm) high Four-Square (Four Circles) (BH 416).  The larger slate sculpture was cast in bronze in 1966 as Four-Square (Four Circles) (BH 428) in an edition of "7+1" (seven casts for sale and one artist's model).
Scaling up these smaller sculptures, Hepworth made a plaster model of the full-size sculpture, 4.29 by 1.99 by 2.295 metres (14.07 ft × 6.53 ft × 7.53 ft), on an aluminium armature.  The five slab-like elements were then cast separately in bronze by the Morris Singer foundry in London.  The separate pieces were welded together to create the completed sculpture, in an edition of "3+1" (three casts for sale, plus one artist's copy).
The artist's copy (0/3) is owned by the Hepworth estate, and is displayed on loan in the gardens of the Barbara Hepworth Museum in St Ives, Cornwall.  Cast 1 has been held by the Norton Simon Museum in Pasadena since 1969.  Cast 2 has been displayed in the grounds of Churchill College, Cambridge since 1968, where students are encouraged to walk or with within the work; it was allocated to the Fitzwilliam Museum in 2000, after being accepted in lieu of inheritance tax by the Department for Culture, Media and Sport, from the estate of the artist.  Cast 3 was donated to the Mayo Clinic in Rochester, Minnesota in 1979, as a memorial for Constantine P. Goulandris, member of the Greek shipping dynasty that included Basil Goulandris and Nikos Goulandris.
An example of the 12 inches (30 cm) slate maquette was put on sale at Bonhams in 2003, estimated at £40,000 to £60,000, but failed to sell.  An example was sold in England in 2009 for £60,000, and resold in at Deutscher and Hackett in Australia in 2014 for AUS$348,000.  An example of the 24 inches (610 mm) bronze Four-square (Four circles) was sold at Christie's in 2010 for US$314,500, and one at Sotheby's in 2017 for £488,750.
Four-Square (Walk Through)