Home / Bay Window Foam
A bay window seat is almost never one rectangle. It's two or three sections meeting at angles that vary from house to house, and we can cut it either as one piece or as separate angled panels.
One piece gives a single seat with no joins, but it costs more: the angled outline has to come out of a larger rectangle of foam, and the offcuts are scrap. Three panels (two angled ends and a straight centre) nest together with far less waste, and they're easier to handle and fit.
One piece or three panels. Either way, cut to your angles.
Spec guide
For one piece, use the bay window seat shape in the builder. For panels, measure each section at its widest point and note the angle where they meet; the trapezium or triangle shapes handle the angled ends and a rectangle covers the centre.
Spec this in the builder| Detail | Guidance | Typical |
|---|---|---|
| One piece | No joins, but costs more because the offcuts are scrap | bay window seat shape |
| Three panels | Two angled ends and a centre; less waste, lower price | measure each separately |
| Density | Medium, general seating | 30–35kg/m³ |
| Thickness | Comfortable seat depth | 75–100mm |
| Shape tool | Trapezium or triangle for the ends, rectangle for the centre | in spec builder |