On 2026-06-28 spot enquiries, Chinese autoclaved lightweight concrete (ALC) panels for partition and envelope walls are being quoted in a USD 25–60 per m³ factory-gate band for B04–B06 density grades, with finished installed wall rates clustering between USD 110 and USD 180 per m³ once mesh, freight, labour and overheads are added [S2].
B04 vs B05 vs B06: density grade as the primary cost lever
Dry density is the single largest cost handle on an ALC panel line, because it sets cement and lime consumption per cubic metre and therefore autoclave cycle energy use. B04 stock (nominal 400 kg/m³) is the cheapest tier and is the typical spec for non-load-bearing internal partitions in residential towers, while B05 (500 kg/m³) is the work-horse for envelope walls and most corridor walls in commercial builds [S2].
The wider AAC block family, including B05/B06 stock, is compared in our AAC Block 2026 Price and Cost Guide, which uses the same density-based cost logic.
Panel geometry, steel content and rebar layout
Standard ALC wall panels are produced in 600 mm module widths and thicknesses of 75, 100, 125, 150, 175 and 200 mm, with lengths cut to drawing between roughly 1.8 m and 6.0 m. Each panel carries a welded rebar cage sized to span and handling duty — typically 2× Ø6 mm or Ø8 mm longitudinal bars with Ø6–Ø8 mm transverse links at 100–200 mm centres [S2].
Cut-outs for doors, windows and MEP sleeves are factory-machined, and each non-standard opening typically carries a small surcharge per piece because the cutting table has to stop, re-jig and re-bar around the opening.
Cost stack per cubic metre and per square metre of finished wall
Breaking the price into its components makes the sourcing conversation easier. A B05 ALC panel sold into a coastal Chinese metro project in mid-2026 typically stacks as: raw AAC blank 45–55%, rebar mesh and welding 8–14%, autoclave and steam energy 5–9%, factory overhead and margin 8–12%, with the remainder being cutting, packaging and load-out [S2].
Translated to a finished wall rate for a 100 mm B05 partition, a project team should expect roughly: panel supply 55–70 USD/m² of wall, transport 8–18 USD/m² depending on distance, install labour + wall accessories (tie bars, joint mortar, anti-crack mesh) 18–30 USD/m², and a thin plaster / skim coat 6–12 USD/m² — putting the all-in envelope at 110–180 USD/m² of wall for typical Chinese conditions in 2026 [S2].
Who should pick ALC panels, and who should not
ALC panels are the right call for: high-rise residential and hotel partitions where the 350–700 kg/m² wall mass is a structural benefit; projects that need a one-trade wall with built-in openings and short programme; and acoustic corridor walls in hospitals, schools and offices where the 40–48 dB rating of a 100 mm B05 panel is enough [S2].
ALC panels are the wrong call for: aggressive chemical-exposure envelopes (acidic flue gas, coastal salt-spray without coating), below-grade basement walls carrying hydrostatic pressure, and any wall section that needs to hang heavy MEP or sanitary loads without supplementary anchors. The wet/chemical limitation is the same one we flag in the AAC Block vs Insulation Board: 2026 Spec Cut piece — the autoclaved cell structure is open enough that aggressive moisture cycling will chew the skin unless it is sealed.
Comparison against AAC blocks and cast-in-place lightweight walls
On a 100 mm partition basis, the three families line up as: AAC blocks (B05, 100 mm) typically 12–22 USD/m² at the wall, much cheaper on materials but slow to lay; ALC panels (B05, 100 mm) 55–70 USD/m² supply as above but install 3–5× faster per crew-day; and cast-in-place lightweight aggregate concrete walls 45–90 USD/m² all-in, with heavier formwork and longer cycle. Speed and finish quality are the two metrics that usually swing a project from blocks to panels once the labour cost is fully loaded [S2].
For procurement teams comparing per-m³ raw numbers across product lines, the same Anhui/Jiangsu export book that lists ALC panel rates also lists autoclaved aerated block rates under the broader AAC & ALC Panels: Blocks, Floor & Wall Supplier catalogue, which is the cleanest cross-reference for a like-for-like USD/m³ request for quotation.
Standards, sourcing signals and the 2026 cost curve
Chinese ALC panels sold into domestic and East-Asian projects are typically produced to GB 15762 (autoclaved silicate sand and aerated concrete slabs) thickness and tolerance rules, while export shipments to the Middle East, Australia and parts of South-East Asia are usually dual-marked to the same GB line plus the buyer's local masonry or wall-panel standard [S2]. Factory-side, the dominant cost pressures cited by Chinese producers remain cement and lime spot prices, natural-gas-fired autoclave fuel, and the freight index for inland truck delivery beyond ~400 km from the plant [S2].
Second, watch whether rebar mesh spot prices stay flat — every 5% move in welded mesh cost shifts the finished ALC panel by roughly 1.5% on a B05 baseline, and most Chinese mill price lists are reviewed monthly.
For component-level specifications, see linear guide, and crossed roller guide.