To adjust the height of a sleeper easily by installing a support section consisting of a bottom plate and side plates erected at the both left and right side edges of the bottom plate and extending leg sections towards the rear in the upper sections of the rear edges of the side plates.

The sleeper bracket metal 1 has a support section 2 composed of a bottom plate 3 and side plates 4, 4 erected from the left-right both side edges of the bottom plate 3, and leg sections 5, 5 are extended towards the rear in the upper sections of the rear edges of the side plates 4. Grooves 7a, 7a are formed on the underside side of a sill 7 at an equal interval to length W between the leg sections 5, 5, the sill 7 is placed on a continuous footing 9, the leg sections 5, 5 are inserted into the groove sections 7a, 7a, and the bracket metal 1 is fixed onto the sill 7 by a fixture. A sleeper 8 is supported to the support section 2, and the sleeper 8 is fixed by a fixture and the sleeper 8 is connected to the sill 7. Several kinds of the bracket metals 1 having different height in the support sections 2 are prepared while the height of the sleeper 8 is selected properly as required, thus easily adjusting height when the sleeper 8 is made lower than the sill 7 and executed.