Scaffold parts per m², by system and depth

Standards and ledgers per bay, by system type

Medians per bay over each type's systems at their default depth, counted over the whole house: every lift, the long walls and the gables, so a bay's standards include the stacked lengths that reach the eaves. A frame system builds its verticals as frames, so it shows frames instead of standards and ledgers.

What a deeper scaffold changes

53 of the 108 systems come in more than one depth. Between a system's narrowest and widest depth, the parts count on the reference house changes by a median of 8 pieces, and by at most 188 (HAKI Universal). For 43 of them the number of standards, frames and ledgers does not change at all: what follows the depth is the length of the parts across the scaffold, such as the transoms, and the parts at the open ends, such as end guardrails.

Every system at every depth, fewest parts per m² first

189 rows: each catalogue system at each of its own depths, ranked by parts per m² of scaffold face. «≈ (estimate)» marks a total that includes wall ties from a rule not yet checked against the manufacturer's document; Verification status by scaffold system lists each system's source. Download the full table to sort it by any column.

Download every row in English, with transoms, base jacks and per-bay figures: CSV or JSON.

How the numbers are made

• Input: the app's example house, 11.4 × 5.3 m with eaves at 4.5 m and a 6 m ridge, scaffolded on all four walls. Both short walls are gables.
• Each system ran once per depth in its catalogue entry (for a system with length variants, its first variant in the picker), with the app's default project settings: no bottom decks and no platform toward the roof. A run where the engine could not plan the asked depth on every wall is left out.
• Parts per m² is every piece of the app's parts list divided by the scaffold face of all four walls in whole m². Per bay divides by the bays on all four walls.
• Standards, frames, ledgers, transoms and base jacks are the parts list's own rows. Decks are its deck rows (decks, decks with ladder or hatch, and planks), not deck accessories such as lift-off preventers.
• The same house with every system's wall ties, decked levels and bays at its default depth is on Scaffold statistics by system.

Limits

• The number of wall ties follows the system's tie rule. Their positions must be checked against the manufacturer's assembly instructions.
• Round corners, silos and hanging scaffolds are in Pro. A round scaffold is not a standard configuration and needs a calculation or the supplier's documentation. A hanging scaffold (Layher Allround and HAKI Universal) always needs a structural calculation from the supplier or an engineer.

Questions and answers