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Internal domestic doors
ÌýCapital cost (£/door) Net present value for 60 years (£/door) Risk of damage
Hollow core doors: £40-140
Hollow core door, with timber edging and blocking for hardware, factory primed 265 560 Low
Hollow core door, with timber edging and blocking for hardware, factory finished 245 600 Moderate
Solid core doors : £100-300
Solid core door, particleboard to BS EN 312 grade P3, softwood edging 295 490 Low
Solid core door, particleboard to BS EN 312 grade P3, softwood edging, real wood veneer 2mm thick 325 580 Moderate
Solid timber doors - £200-500+
Four panel softwood door. European Redwood to BS EN 942 Class J30, D3 adhesive to BS EN 204 assembled to BS 1186-2 460 630 Low
Four panel hardwood door to BS EN 942 Class J2 D3 adhesive to BS EN 204, assembled to BS 1186-2 For varnished finish 560 710 Moderate
An internal door assembly correctly specified for expected use in a dry internal environment should have an indefinite life with regular servicing and redecoration. However, usage and environments change and accidents happen. The whole-life cost models are based on a risk of damage as well as planned redecoration every 10 years, with an allowance for servicing, replacement of hardware and minor repairs. A discount rate of 3.5% is used to calculate net present values. The door cost range is indicative for 2040 x 626-826 x 40mm door; lowest price for basic door unfinished, upper price for real veneer finish. Capital costs include installation; frame and linings; hardware; decoration. BLP provides latent defect warranties for buildings: www.blpinsurance.com. Email peter.mayer@blpinsurance.com or call 020 7204 2450