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Plywood instead chipboard

Posted by Gergely Cilinger, on Sat 02 Feb 2019 02:20pm

First floor bedrooms are getting new carpets. Subfloor is chipboard, joists every 40 cm. 18 mm chipboard (screwed down) is bending under my weight and creaking. Would replacing chipboard with 18mm plywood solve the bending issue?

Philip Proby

Mon 04 Feb 2019 05:21pm

18mm is the absolute minimum thickness for this job I would suggest 22mm or 25mm thick plywood.

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