A floor contains several layers. Its finished height affects doors, stairs, kitchen units and transitions.
What the drawing needs to explain
Prepare a detail sheet for the door, frame, skirting and wall together. Identify retained elements, refinished surfaces and locations requiring bespoke work.
Agree a reference level
Use one datum for everyone and record existing and proposed finished heights. Rough construction dimensions are not necessarily ordering dimensions.
How to review the result
Review junctions against the detail sheet. Check that retained doors move freely and new layers do not obstruct hardware, hinges or ventilation provisions.
Which trade-off matters?
Making every surface perfectly uniform can remove recognisable details. Compare local repairs with full renewal and agree where small dimensional differences may deliberately remain visible.
Questions for your own property
- Are finishes included in heights?
- Do doors and stairs still work?
- Are all floor layers known?
Illustrative design situations, not evidence of completed work. Assess decisions against the actual property.

