Multipurpose 135° / 45° Corner Railway Sleeper & Timber Joining Brackets ------------------------------------------------------------------------------------ These 45 Degree Corner Sleeper Brackets provide a quick and very easy system for joining Railway Sleepers or other Timber. These particular corner brackets are angled at 135° (internal angle) to enable you to create more interesting shapes of planter or retaining walls. It is also the perfect shape and angle for making Octagon-shaped constructions in your garden. SleeperFit have been developing Sleeper Brackets for garden constructions since 2016. We produce the ultimate Railway Sleeper Bracket that will last a lifetime.