# Flush internal doors — hollow and solid core | Threshen > Flush internal doors with a flat face and no panels. Hollow core against solid core, where the lock block sits, and when a flush door is the right call. Source: https://example.co.uk/internal-doors/flush --- # Flush internal doors A flush door is flat on both faces with no panels or mouldings. It is the least expensive way to replace a full set of doors and the least likely to argue with a modern interior. The decision that matters is the core: hollow is light and cheap, solid is heavier, quieter and takes ironmongery anywhere. **In this range** 6 doors **Guide price from** £38.40 inc VAT Flush doors get written off as the builder-spec option, which misreads them. In a house with no mouldings anywhere else, a panelled door is the thing that looks bolted on. They are also the doors where the specification underneath the face matters most, because there is no styling to distract from how the door actually behaves. 6 doors Prices are guide prices including VAT, taken from the smallest size and plainest finish of each door. They are not an offer to sell — confirm the price for your size and finish before ordering. - White Flush Internal Door Where the door is not meant to be the point, this one has nothing to catch dust or argue with the architecture. A plain flat face, honestly priced. Primed MDF - 35mm ### White Solid Core Flush Door The same flat painted face as a hollow core flush door, with a dense infill behind it: it sounds solid, takes a latch anywhere on the edge, and shuts with some weight to it. - Solid core primed MDF - 35mm ### Oak Flush Internal Door In a house with no mouldings anywhere else, a panelled door looks staged. This is the timber alternative: an uninterrupted oak face, no panels. - Engineered oak - 35mm ### Grey Painted Flush Door A completely plain grey leaf. No panel, no moulding, no line on it, in the colour people choose when white feels stark. - Painted grey MDF - 35mm ### Walnut Flush Internal Door An uninterrupted walnut face, no panels and no mouldings, on the plainest door shape there is. Darker and warmer than oak. - Engineered walnut - 35mm ### Oak Solid Core Flush Door A flat oak face over a dense core. The upgrade that is felt rather than seen: heavier in the hand, quieter through the wall, and it takes ironmongery anywhere on the edge. - Engineered oak, solid core - 35mm No doors match these filters yet. Clear a filter to widen the search. ## Hollow core or solid core A hollow core door is two faces over a cardboard honeycomb or a lattice frame. It is light, cheap and easy for one person to hang. A solid core door has a dense infill and is noticeably heavier, quieter and steadier in the hand. | | Hollow core | Solid core | | --- | --- | --- | | Weight | Light — one person can hang it | Heavy — two people, and consider a third hinge | | Sound | Sounds and behaves hollow | Noticeably better sound separation | | Ironmongery | Only where the lock block is | Anywhere on the edge | | Trimming | Limited — the stiles are narrow | More forgiving | | Sensible for | Bedrooms, cupboards, box rooms | Home offices, bathrooms, anywhere off a busy hallway | ## The lock block is the thing nobody mentions A hollow core door has a solid timber block built into one long edge, and that block is the only place a latch or a lock can go. Fit a latch outside it and the fixing has nothing to bite into. The block is usually marked on the edge or noted in the fitting instructions, and it is not always centred at handle height on every size. Find it before you hang the door, not after you have chiselled the mortice. ## What a flush door costs you A flat face shows every knock, and a painted flush door in a hallway will collect them at pushchair height. The edges are the vulnerable part on a hollow core leaf, because there is very little material behind the lipping. Neither is a reason to avoid them, but it is a reason to put solid core on the doors that get used hardest. ## More internal doors [Back to all internal doors](https://example.co.uk/internal-doors)