ScaFixScaffold system
Metaltech Saferstack Ladder Arch scaffold: bay lengths, depths and parts list
Metaltech Saferstack Ladder Arch has bay lengths of 10', 8' and 7' and a depth of 5' (1.52 m) in ScaFix. Enter your walls, and ScaFix draws the Metaltech Saferstack Ladder Arch scaffold in 3D and works out its parts list. Below is our example house with Metaltech Saferstack Ladder Arch. Any other size: Scaffold calculator.
By Ole Emil Frikstad Urstad · How the numbers are computed ·
How many parts does Metaltech Saferstack Ladder Arch need for a house?
ScaFix plans Metaltech Saferstack Ladder Arch with the bay lengths 10', 8' and 7' and scaffold depth 5' (1.52 m). On ScaFix’s 37'-5" (11.4 m) × 17'-4 1/2" (5.3 m) example house, scaffolded all round, Metaltech Saferstack Ladder Arch needs 318 parts; Waco Frame needs 352 on the same house.
Metaltech Saferstack Ladder Arch in ScaFix
- Manufacturer · System type
- Metaltech-Omega · Frame and brace scaffold
- Variants in the system picker
- Metaltech Saferstack Ladder Arch (USA)
- Bay lengths · Depths
- 3.05 m, 2.44 m, 2.13 m · 1.52 m
- Source of bay lengths and depths
- Metaltech M-MA7660LPS product data (read 23 October 2026)
- Source of the tie rule
- Metaltech «Exterior Scaffolding Guidelines» (2021) p. 1–2: tie when the height exceeds 3–4 × the base, then every 20 ft high and 30 ft along (3:1 free-standing)
- Bay lengths in feet and inches
- 10', 8', 7'
- How ScaFix plans Metaltech Saferstack Ladder Arch
- 1.93 m lifts; ties every 4 m vertically, every 3.05 m (1 × 3.05 m) / 4.88 m (2 × 2.44 m) / 4.27 m (2 × 2.13 m) along the wall; diagonals at least one per 1 bays in every lift
Wall-tie spacing along the wall for Metaltech Saferstack Ladder Arch
ScaFix ties Metaltech Saferstack Ladder Arch every 4 m in height. Along the wall a tie sits on a standard, so the spacing is always a whole number of bays: for a wall built from one bay length, the table shows how many bays lie between two tied standards and the spacing that gives. Rule: Metaltech «Exterior Scaffolding Guidelines» (2021) p. 1–2: tie when the height exceeds 3–4 × the base, then every 20 ft high and 30 ft along (3:1 free-standing). ScaFix is a planning tool, not a structural approval.
| Bay length | Bays between ties | Tie spacing along the wall |
|---|---|---|
| 3.05 m | 1 | 3.05 m |
| 2.44 m | 2 | 4.88 m |
| 2.13 m | 2 | 4.27 m |
Sources for Metaltech Saferstack Ladder Arch
Tie rule for Metaltech Saferstack Ladder Arch: Metaltech «Exterior Scaffolding Guidelines» (2021) p. 1–2: tie when the height exceeds 3–4 × the base, then every 20 ft high and 30 ft along (3:1 free-standing). ScaFix is a planning tool, not a structural approval.
Close-ups from the 3D model
The example house with Metaltech Saferstack Ladder Arch
| Wall | Length | Height | Bays |
|---|---|---|---|
| Wall 1 + 3 | 37'-5" (11.4 m) | 14'-9" (4.5 m) | 3 × 10' (3.05 m) + 1 × 8' (2.44 m) |
| Wall 2 + 4 (gable) | 17'-4 1/2" (5.3 m) | 19'-8" (6 m) | 1 × 7' (2.13 m) + 1 × 10' (3.05 m) + 1 × 8' (2.44 m) |
The parts list for the example house with Metaltech Saferstack Ladder Arch
| Part | Length | Count |
|---|---|---|
| Frames and standards | ||
| Frames | 6'-4" (1.93 m) | 36 |
| Frames | 3'-3 1/2" (1 m) | 12 |
| Top-lift guardrail posts | 6 | |
| Ladder arch frames 76″ × 60″ | 6'-4" (1.93 m) | 4 |
| Decks | ||
| Decks without ladder | 10' (3.05 m) | 18 |
| Decks without ladder | 8' (2.44 m) | 8 |
| Decks without ladder | 7' (2.13 m) | 4 |
| Guardrails | ||
| Front guardrails | 10' (3.05 m) | 26 |
| Front guardrails | 8' (2.44 m) | 12 |
| Front guardrails | 7' (2.13 m) | 6 |
| Toeboards | ||
| Toeboards | 10' (3.05 m) | 18 |
| Toeboards | 8' (2.44 m) | 8 |
| Toeboards | 7' (2.13 m) | 4 |
| Diagonals | ||
| Diagonals | 10' (3.05 m) | 36 |
| Diagonals | 8' (2.44 m) | 16 |
| Diagonals | 7' (2.13 m) | 8 |
| Ends | ||
| End guardrails | 20 | |
| Wall ties and fittings | ||
| Wall ties | 20 | |
| Wall-anchor fittings | 20 | |
| Base jacks and legs | ||
| Base jacks / legs | 36 | |
Metaltech Saferstack Ladder Arch (USA) · Scaffold depth: 5' (1.52 m) · Decks at: 2.14 m, 4.07 m, 6 m · Decks with ladders · Parts in all: 318
Metaltech Saferstack Ladder Arch compared with similar systems on the same house
| System | Bays on the long wall | Depth | Parts in all | Against Metaltech Saferstack Ladder Arch |
|---|---|---|---|---|
| Metaltech Saferstack Ladder Arch | 3 × 10' (3.05 m) + 1 × 8' (2.44 m) | 5' (1.52 m) | 318 | this page |
| Waco Frame | 1 × 10' (3.05 m) + 4 × 7' (2.13 m) + 1 × 5' (1.52 m) | 5' (1.52 m) | 352 | +34 (+11%) |
| StepUp Frame & Brace | 1 × 4' (1.22 m) + 3 × 10' (3.05 m) + 1 × 8' (2.44 m) | 3' (0.91 m) | 350 | +32 (+10%) |
| Metaltech Saferstack Mason | 3 × 10' (3.05 m) + 1 × 8' (2.44 m) | 5' (1.52 m) | 330 | +12 (+4%) |
Metaltech Saferstack Ladder Arch: parts by wall size
Scaffold depth 1.52 m, access: decks with ladders. Each wall is a whole number of 3.05 m bays, so the scaffold covers it exactly.
| Wall (length × height) | Bays | Decked lifts | Frames and standards | Decks | Base jacks and legs | Wall ties and fittings | Parts in all |
|---|---|---|---|---|---|---|---|
| 20' (6.1 m) × 13'-1 1/2" (4 m) | 2 × 10' (3.05 m) | 1 | 6 | 2 | 6 | 6 | 32 |
| 40' (12.19 m) × 19'-8" (6 m) | 4 × 10' (3.05 m) | 3 | 20 | 12 | 10 | 20 | 120 |
| 60' (18.29 m) × 26'-3" (8 m) | 6 × 10' (3.05 m) | 4 | 35 | 24 | 14 | 42 | 225 |
| 80' (24.38 m) × 32'-9 1/2" (10 m) | 8 × 10' (3.05 m) | 5 | 54 | 40 | 18 | 54 | 344 |
| 100' (30.48 m) × 39'-4 1/2" (12 m) | 10 × 10' (3.05 m) | 6 | 77 | 60 | 22 | 88 | 509 |
US rules for Metaltech Saferstack Ladder Arch (OSHA 29 CFR 1926.451)
- Height-to-base for Metaltech Saferstack Ladder Arch: planned 5' (1.52 m) wide, it must be restrained by guying, tying, bracing or an equivalent means above 4 × that width, 20' (6.10 m) — §1926.451(c)(1).
- Ties for Metaltech Saferstack Ladder Arch: at horizontal members that support both inner and outer legs, placed as the manufacturer recommends or starting at the horizontal member closest to that height, then repeated vertically every 26 ft (7.9 m) or less, because the scaffold is wider than 3 ft (0.91 m), and at each end and horizontally every 30 ft (9.1 m) or less from one end — §1926.451(c)(1)(i)–(ii).
- Guardrails on Metaltech Saferstack Ladder Arch: the top rail 38 to 45 in (0.97–1.14 m) above the platform on scaffolds made or placed in service after 1 January 2000, with a midrail about halfway — §1926.451(g)(4).
- Toeboards on Metaltech Saferstack Ladder Arch, where they are needed against falling objects: at least 3½ in (89 mm) high — §1926.451(h)(4).
- ANSI/ASSP A10.8 is the US consensus standard for scaffolding safety; the manufacturer's instructions apply on top of both.
- ScaFix is a planning tool, not a structural calculation or approval. A competent person must check the scaffold before use.
Source of the US rules for Metaltech Saferstack Ladder Arch
The rules for Metaltech Saferstack Ladder Arch above: OSHA, Safety and Health Regulations for Construction, 29 CFR 1926.451 (General requirements for scaffolds).
Metaltech Saferstack Ladder Arch: a 40 × 20 ft wall
ScaFix plans a straight 40 ft × 20 ft wall (12.19 m × 6.1 m) with Metaltech Saferstack Ladder Arch as 4 bays (4 × 3.05 m), decks at 2.24 m, 4.17 m and 6.1 m: 120 parts in all, computed by the same engine as the app. Corners, returns and stairs change the count.
Pick Metaltech Saferstack Ladder Arch if…
- you need a wide working deck: ScaFix plans Metaltech Saferstack Ladder Arch up to 1.52 m deep, a width only 7 of the 60 other systems of its type also reach.
- you build in lifts of 1.93 m: that is this system’s lift height in ScaFix, against 2 m for most systems.
Questions about Metaltech Saferstack Ladder Arch
How many parts does Metaltech Saferstack Ladder Arch need for a 12.19 m × 6 m wall?
A 12.19 m long, 6 m high wall with Metaltech Saferstack Ladder Arch (4 × 3.05 m) needs 120 parts according to ScaFix: 20 frames and standards, 12 decks, 10 base jacks and legs and 20 wall ties and fittings, with decks on 3 lifts. A 30.48 m wall 12 m high needs 509.
Can ScaFix plan Metaltech Saferstack Ladder Arch in feet and inches?
Yes. In the catalog, Metaltech Saferstack Ladder Arch has bays of 10', 8' and 7', and its parts list shows every length in feet and inches (Imperial) or in meters.
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