This section sits at the wider end of the F17 range we stock, built for jobs where you need a broad bearing face but don’t necessarily need the extra depth. Still the same high-density Victorian Ash underneath, still kiln-dried, still rated F17 under AS 1720 — the 140×35 profile just spreads that strength across more width, which matters when you’re fixing multiple members together or need a stable base for something sitting on top. Builders often reach for this size on bracing work, wider bearers, or anywhere a narrower 90mm or 120mm section wouldn’t give enough surface to work with. It handles cutting and drilling the same as the rest of the range, and because it’s local hardwood rather than an import, availability tends to hold up better when other suppliers are waiting on shipments.