Set of 10 Adjustable Wood Joist Supports 8-20 mm

Set of 10 adjustable wood joist supports that are used for deck installation. The supports can be adjusted in height from 0.3 in to 0.8 in (8 mm to 20 mm). Without the addition of a shim, the support can be adjusted from 0.3 in to 0.6 in (8 mm to 15 mm). With the addition of a shim, the support can be adjusted from 0.6 in to 0.8 in (15 mm to 20 mm).