Section 4
Floor
Boards over battens over a void. A hall floor is expected to deflect a few millimetres and to give that movement back, and the detail underneath decides whether it does.

4 entries
Sprung boards, and the joint that makes them spring.- 4.1A floor that givesBoards laid on battens over a void so the surface deflects a few millimetres. What that saves and how it is built.
- 4.2The sleeper jointThe detail underneath that decides how much it springs.
- 4.3Dead spotsWhere a sprung floor stops springing, and how they are found.
- 4.4Finish and gripA surface that must not be slippery and must not be sticky.
Every entry on the site is listed on one page, and the six sections are gathered on the hub.