sleepers

Sleeper strip above and three stages of a cut sleeper below. from left to right - a sleeper with an insulation gap, sleeper with gap filled and sleeper with filler smoothed to finish.

Sleeper strip above and three stages of a cut sleeper below. from left to right – a sleeper with an insulation gap, sleeper with gap filled and sleeper with filler smoothed to finish.

Sleeper strip above and three stages of a cut sleeper below. from left to right – a sleeper with an insulation gap, sleeper with gap filled and sleeper with filler smoothed to finish.