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Four-Size Deck Board Gap Spacer
A reusable cross-shaped spacer for setting decking gaps. It has four 28 mm deep blades in 1/8, 3/16, 1/4 and 5/16 in (printed at 3.2, 4.8, 6.4 and 8.0 mm), and a 10 mm thick hub that sits on the board tops as a depth stop. Drop the blade you want between the boards, tap the next board up against it, then pull it out by the 14 mm finger hole. The drilled dots on the hub (1 to 4) tell you which size each blade is, and the 88 mm span keeps it from getting lost the way disposable wedges do.
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