Ledger to Deck Transom

The ledger-to-deck transom is a modular component for the ringlock system.  When I first saw this product, I was inquisitive about the function of the ringlock system.  With the investigation, I will give details about the function, sizes and types of the ledger to deck transom in this article.

The ledger to deck transom is a part originally designed by Layer company, Germany for their modular ringlock system(allround scaffold). The design allows the creation of an opening, access or even conversion in the middle of the platform.

One side of the ends of the deck to ledger transom with security wedges. Another side of the transom ends with a security flap.  The security elements ensure the safety of the scaffold struction and allow to load scaffold planks. The loadable of the transom can up to load class 3 of EN12810 standard.

How to Use the Steel Deck to Ledger Transom

In construction, the wedge side of the deck to the ledger transom connects to the ringlock scaffold ledgers. The flap end of the deck to the ledger transom connects the the flank of scaffold platform of the system. The wedges and flaps lock the transom safely to the flank of the platforms and scaffold ledgers.

There is a space between the two ends of the deck to ledger transom. The space can be in different sizes to allow one board to three board width of the scaffold planks sit on it.

In construction, the opening area allows scaffold ladders to go through the scaffold platform and create access for the building and construction scaffolding system.

Manufacturing Videos

You can check the manufacturing video of the ledger to deck transom.

 

Types of The Deck to Ledger Transom

There are two types of deck to ledger transom according to function and material of the transom.

  1. O Ledger deck to ledger transom
  2. U Ledger Deck to ledger transom

O Ledger Deck to Ledger Transom

O ledger deck to ledger transom is made of an OD48.3mm scaffold tube. At two ends of the tube, there are two U-pressing sets assembled with the security elements of wedges and flaps.

With the O ledger deck-to-ledger transom, scaffold platforms and hatches with O hooks can be arranged on it.

U Deck To Ledger Transom

U deck to ledger transom is made of a U profile section between two ends of the transom.  The U section allows scaffold planks to be arranged at two sides of the U section to avoid the conflicts of the plank hooks.

Sizes of Ledger-to-Deck Transom

There are three sizes of the ledger to deck transoms

  • One Board Ledger to Deck Transoms
  • Two Board Ledger to Deck Transom
  • Three Board Ledger to Deck Transom

One Board ledger-to-deck transom means the space can load one scaffold platform width.

Two Board ledger-to-deck transom means the space is enough to put two widths of scaffold platforms.

Three board ledger-to-deck transom means the space can load three widths of the scaffold platforms.

On average, there are two popular widths of scaffold platforms for ringlock scaffolding. 240mm for USA-type ringlock(pin lock scaffold) and 320mm for European-type ringlock(allround scaffold).  Thus, the ledger-to-deck (deck-to-ledger) transom has the following 6 sizes. (see the table)

Ledger to Deck Transom Size For Europe ringlock

  1. 0.32m  Deck to Ledger Transom
  2. 0.64m Deck to Ledger Transom
  3. 0.96mDeck to Ledger Transom

Ledger to Deck Transom Size For USA ringlock

  1. 0.24m  Deck to Ledger Transom
  2. 0.48m Deck to Ledger Transom
  3. 0.72mDeck to Ledger Transom
Ledger to Deck Transom Size & Specifications
CodeDescriptionSizeDeck WidthWeight
KG
WLDT024O1 BRD O Ledger to Deck240mm240mm3.37
WLDT048O2 BRD O Ledger to Deck480mm240mm4.22
WLDT072O3 BRD O Ledger to Deck720mm240mm5.07
WLDT032O1 BRD O Ledger to Deck320mm320mm3.66
WLDT064O2 BRD O Ledger to Deck640mm320mm4.79
WLDT096O3 BRD O Ledger to Deck960mm320mm5.92
WLDT032U1 BRD U Ledger to Deck320mm320mm3.73
WLDT064U2 BRD U  Ledger to Deck640mm320mm4.93
WLDT096U3 BRD U Ledger to Deck960mm320mm6.13

 

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