ScaFixScaffold system
Disk-lock Type B (China) scaffold: bay lengths, depths and parts list
ScaFix plans Disk-lock Type B (China) scaffolding with the system's own bay lengths (1.8 m, 1.5 m, 1.2 m and 0.9 m) and depths (1.2 m and 0.9 m), draws the scaffold in 3D and works out the parts list. Below is our example house with Disk-lock Type B (China).
By Ole Emil Frikstad Urstad · How the numbers are computed ·
How many parts does Disk-lock Type B (China) need for a house?
ScaFix plans Disk-lock Type B (China) with the bay lengths 1.8 m, 1.5 m, 1.2 m and 0.9 m and the scaffold depth 0.9 m. On ScaFix’s 11.4 m × 5.3 m example house, scaffolded all round, Disk-lock Type B (China) needs 777 parts; Layher Allround needs 481 on the same house.
Try one week – €9.90See the demo house in 3DSee ScaFix
€9.90 for 7 days. Does not renew.
The system in ScaFix
- Manufacturer
- Chinese disk-lock makers
- System type
- Modular scaffold with rosettes
- Variants in the system picker
- Disk-lock Type B (China)
- Bay lengths
- 1.8 m, 1.5 m, 1.2 m, 0.9 m
- Depths
- 1.2 m, 0.9 m
- Source of the tie rule
- T/SDSJZYXH 承插型盘扣式钢管脚手架 (征求意见稿, JGJ/T 231 basis) 表 4.1 «连墙件 2步3跨», §4.2.10 p. 22
Good to know
Planned from a Shandong group-standard draft (T/SDSJZYXH, on the JGJ/T 231-2021 basis), not from the national standard text itself; check the maker's own data.
Close-ups from the 3D model
The example house with Disk-lock Type B (China)
ScaFix's own example: the 11.4 m × 5.3 m house with a gabled roof, eaves 4.5 m and ridge 6 m, scaffolded all round. The numbers below are the app's own, worked out by the same engine as in projects.
- System
- Disk-lock Type B (China)
- Scaffold depth
- 0.9 m
- Decks at
- 2.5 m, 4.5 m
- Top deck
- 4.5 m
- Access
- Decks with ladders
- Parts in all
- 777
The walls and the bays
| Wall | Length | Height | Bays |
|---|---|---|---|
| Wall 1 | 11.4 m | 4.5 m | 1 × 0.9 m + 3 × 1.8 m + 4 × 1.5 m |
| Wall 2 (gable) | 5.3 m | 6 m | 1 × 0.9 m + 3 × 1.8 m |
| Wall 3 | 11.4 m | 4.5 m | 1 × 0.9 m + 3 × 1.8 m + 4 × 1.5 m |
| Wall 4 (gable) | 5.3 m | 6 m | 1 × 0.9 m + 3 × 1.8 m |
The parts list for the example house with Disk-lock Type B (China)
The whole parts list for ScaFix's own example, grouped the way the app shows it.
| Part | Length | Count |
|---|---|---|
| Frames and standards | ||
| Standards | 2 m | 112 |
| Standards | 1 m | 56 |
| Ledgers and beams | ||
| Ledgers | 1.8 m | 72 |
| Ledgers | 1.5 m | 48 |
| Ledgers | 0.9 m | 24 |
| Transoms | 84 | |
| Decks | ||
| Decks without ladder | 1.8 m | 23 |
| Decks without ladder | 1.5 m | 16 |
| Decks without ladder | 0.9 m | 8 |
| Decks with ladder | 1.8 m | 2 |
| Guardrails | ||
| Front guardrails | 1.8 m | 72 |
| Front guardrails | 1.5 m | 48 |
| Front guardrails | 0.9 m | 24 |
| Toeboards | ||
| Toeboards | 1.8 m | 24 |
| Toeboards | 1.5 m | 16 |
| Toeboards | 0.9 m | 8 |
| Diagonals | ||
| Diagonals | 1.8 m | 4 |
| Diagonals | 1.5 m | 8 |
| Diagonals | 0.9 m | 8 |
| Ends | ||
| End guardrails | 8 | |
| Wall ties and fittings | ||
| Wall ties | 28 | |
| Wall-anchor fittings | 28 | |
| Base jacks and legs | ||
| Base jacks / legs | 56 | |
This is our example. The parts list for your own walls follows your measurements and settings.
Disk-lock Type B (China) compared with similar systems on the same house
The same example house, computed by the same engine with each system's bay length and default depth. The difference in piece count comes from the bay length, the depth and how the system is built.
| System | Bays on the long wall | Depth | Parts in all |
|---|---|---|---|
| Disk-lock Type B (China) | 1 × 0.9 m + 3 × 1.8 m + 4 × 1.5 m | 0.9 m | 777 |
| Layher Allround | 4 × 3.07 m | 0.73 m | 481 |
| PERI UP | 1 × 0.75 m + 3 × 3 m + 1 × 2.5 m | 0.75 m | 567 |
| Plettac Contur | 1 × 0.75 m + 3 × 3 m + 1 × 2.5 m | 0.74 m | 561 |
Disk-lock Type B (China): parts by wall size
Scaffold depth 0.9 m, access: decks with ladders. Each wall is a whole number of 1.8 m bays, so the scaffold covers it exactly. One straight wall, no corners.
| Wall (length × height) | Bays | Decked lifts | Frames and standards | Decks | Base jacks and legs | Wall ties and fittings | Parts in all |
|---|---|---|---|---|---|---|---|
| 3.6 × 4 m | 2 × 1.8 m | 1 | 12 | 3 | 6 | 4 | 53 |
| 7.2 × 6 m | 4 × 1.8 m | 2 | 30 | 9 | 10 | 14 | 142 |
| 10.8 × 8 m | 6 × 1.8 m | 3 | 56 | 19 | 14 | 18 | 264 |
| 14.4 × 10 m | 8 × 1.8 m | 4 | 90 | 33 | 18 | 32 | 430 |
| 18 × 12 m | 10 × 1.8 m | 5 | 132 | 51 | 22 | 38 | 629 |
How to compare the setup
- These are fixed ScaFix examples, not customer jobs. Use the wall dimensions and roof shape stated with each example.
- Compare the same system variant, bay lengths, scaffold depth, deck heights and access. Matching house dimensions alone do not give matching parts lists.
- The displayed quantities are calculated by ScaFix's engine. Check the setup against the manufacturer's assembly instructions and the actual job; a parts list is not a structural calculation.
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
Which bay lengths does Disk-lock Type B (China) have in ScaFix?
ScaFix uses the bay lengths 1.8 m, 1.5 m, 1.2 m and 0.9 m and the depths 1.2 m and 0.9 m for Disk-lock Type B (China).
How many parts does the example house need with Disk-lock Type B (China)?
With Disk-lock Type B (China), the 11.4 m × 5.3 m example house needs 777 parts in all, split into the groups in the table. Your own building gets its own parts list.
How many parts does Disk-lock Type B (China) need for a 7.2 m × 6 m wall?
A 7.2 m long, 6 m high wall with Disk-lock Type B (China) (4 × 1.8 m) needs 142 parts in all according to ScaFix: 30 frames and standards, 9 decks, 10 base jacks and legs and 14 wall ties and fittings, with decks on 2 lifts. A 18 m wall 12 m high needs 629.
Is the Disk-lock Type B (China) plan from ScaFix approved for erection?
ScaFix is a planning tool, not a structural calculation or approval. Always check the scaffold against the manufacturer's assembly instructions and the rules that apply before you erect it.
Try one week – €9.90See the demo house in 3DSee ScaFix
€9.90 for 7 days. Does not renew.