dB Blank/Door manufacturer Door thickness Doorset type Head & jamb seals Meeting stile seals Threshold seals Threshold plates Glazing seals Glass type ID
35 Strebord 44 Double LP1504, LAS1212, LAS1011 2 x LP1004, 2 x LAS1011 2 x LAS1016 LAS4011 FF1 15mm Pyroguard 448