It was a 14th win in 18 SCFL premier games for Mike Hamm’s side but they remain six points behind leaders Haywards Heath, who have a 100 per cent record after 17 games.
Stan Bridgman scored two, Evan Hoarty one and there was an own goal as Steyning eased to victory.
The defeat left Shoreham just one place off the bottom.
See pictures from the match by Stephen Goodger on this page and those linked and read a full report on the win on this website and in the Worthing Herald later in the week.
29. Steyning Town v Shoreham pictures by Stephen Goodger (16).jpeg
Steyning Town v Shoreham, SCFL premier division Photo: Stephen Goodger
30. Steyning Town v Shoreham pictures by Stephen Goodger (23).jpeg
Steyning Town v Shoreham, SCFL premier division Photo: Stephen Goodger
31. Steyning Town v Shoreham pictures by Stephen Goodger (21).jpeg
Steyning Town v Shoreham, SCFL premier division Photo: Stephen Goodger
32. Steyning Town v Shoreham pictures by Stephen Goodger (6).jpeg
Steyning Town v Shoreham, SCFL premier division Photo: Stephen Goodger