Cut a concrete wall opening with a track-mounted wall saw for walls up to 500 mm thick, or a diamond wire saw for thicker walls and large openings. You need to cut from both sides, drill the corners with a core drill first, and prop the opening before cutting so the concrete section doesn't fall and jam the blade. For most residential doorway openings (200-300 mm walls), a 600-800 mm wall saw blade on a track guide is the standard tool.
| Tool | Best For | Wall Thickness |
|---|---|---|
| Wall saw (track-mounted) | Doorways, windows, straight openings | Up to 500 mm |
| Diamond wire saw | Thick walls, irregular shapes, confined spaces | 500 mm to several meters |
| Hand-held saw | Small openings, chases, corrections | Up to 150 mm |
For wall saw work, use a high-horsepower laser-welded blade; for very thick or heavily reinforced walls, a diamond wire saw for concrete is the professional choice.
A: For very thin walls (100-150 mm) and small openings, yes. For 200+ mm walls, a wall saw is the only practical tool.
A: A trained crew cuts a standard 900x2100 mm opening in a 200 mm wall in 2-3 hours, including setup.
A: That's a structural decision. Most openings need a lintel or steel beam above — consult an engineer.
A: A laser-welded blade cuts through rebar, but slower. Keep the cut wet and feed steadily.
Wall openings are a professional job — use a wall saw for standard thicknesses, a wire saw for thick walls, and always prop before the final cut. See our wall saw and wire saw range.
