Ten Green Coffee Table - from reclaimed timber and glass bottles

Step 5 Fit the turnbuckles and tighten

Adjust the bases of the bottles to ensure that they are flush with the first board. Attach a turnbuckle (and ess hook on the turnbuckle eye end if necessary), between the screw eye and screw hook. The design of these turnbuckles can vary, so you will have to experiment to see which way to fit the buckle. As you turn the centre of the turnbuckle, the ends should should gradually come together, compressing the bottles.

Repeat for each of the four bottles. Tighten the turnbuckles as much as you can by hand. This should easily be sufficient for rigidity and tools should not be required.

The turnbuckles are designed to sit at an incline in order to increase the torsional strength of the table. This resulted from testing an initial prototype, in which case the turnbuckles gradually loosened over time as the table was used as a footrest or otherwise pushed around from the side. So hopefully that should be fixed here.