▁oldest ▁door ▁in ▁England ▁can ▁be ▁found ▁in ▁West min ster ▁Ab bey ▁and ▁dates ▁from ▁ 1 0 5 0 . ▁In ▁England ▁in ▁the ▁ 1 7 th ▁century ▁the ▁door ▁pan els ▁were ▁raised ▁with ▁bo lection ▁or ▁project ing ▁m old ings , ▁sometimes ▁rich ly ▁car ved , ▁round ▁them ; ▁in ▁the ▁ 1 8 th ▁century ▁the ▁m old ings ▁worked ▁on ▁the ▁st iles ▁and ▁rails ▁were ▁car ved ▁with ▁the ▁egg ▁and ▁tongue ▁orn ament . ▁ ▁Design ▁and ▁styles ▁▁ ▁There ▁are ▁many ▁kinds ▁of ▁doors , ▁with ▁different ▁purposes . ▁The ▁most ▁common ▁type ▁is ▁the ▁single - leaf ▁door , ▁which ▁consists ▁of ▁a ▁single ▁rig id ▁panel ▁that ▁fills ▁the ▁door way . ▁There ▁are ▁many ▁variations ▁on ▁this ▁basic ▁design , ▁such ▁as ▁the ▁double - leaf ▁door ▁or ▁double ▁door ▁and ▁French ▁windows , ▁which ▁have ▁two ▁adjacent ▁independent ▁pan els ▁h ing ed ▁on ▁each ▁side ▁of ▁the ▁door way . ▁ ▁A ▁half ▁door ▁or ▁Dutch ▁door ▁or ▁stable ▁door ▁is ▁divided ▁in ▁half ▁hor izont ally . ▁Trad itionally ▁the ▁top ▁half ▁can ▁be ▁opened ▁to ▁allow ▁a ▁horse ▁or ▁other ▁animal ▁to ▁be ▁fed , ▁while ▁the ▁bottom ▁half ▁remains ▁closed ▁to ▁keep ▁the ▁animal ▁inside . ▁This ▁style ▁of ▁door ▁has ▁been ▁adapted ▁for ▁homes . ▁ ▁Sal oon ▁doors ▁are ▁a ▁pair ▁of ▁light weight ▁swing ▁doors ▁often ▁found ▁in ▁public ▁bars , ▁and ▁especially ▁associated ▁with ▁the ▁American ▁west . ▁Sal