The one measurement that gets sash orders remade
The most expensive line on a timber window order is usually the one nobody checked.
Meeting rail height. On a terrace, every window in the row sits at the same height, and the eye reads that line across the whole elevation. Put one window in with the rail 40 mm out and the house looks wrong from the pavement. No amount of paint fixes it, and a conservation officer sees it before they have got out of the car.
It is not a difficult thing to get right. It is a thing that gets missed, because the survey records the opening and nobody writes down the rail.
We ask for it on every order, and if it is not on the schedule we come back and ask. That one question costs a phone call. Getting it wrong costs a full remake, a delayed site and a conversation nobody wants to have.
If you are putting a schedule together, the three we always need are: structural opening, meeting rail height, and whether the cill is existing or new.
FAQ
- What if the original windows are already out?
- The neighbouring properties in the terrace will almost always carry the same rail height. A photograph from across the street with a rule is usually enough.
- Do you check the schedule before manufacture?
- Yes. Drawings go back to you for signature before anything is cut.
- What happens if a dimension is wrong on a signed drawing?
- The drawing is what we build to. That is why the signature stage exists and why we never skip it.