Don't let your deck

rot your house!


Our Product


Deck2wall® Spacers (D2W) are polypropylene spacers designed to be installed between a deck and house.  This allows water and debris to flow between the ledger and the house, promotes circulation and drying, and helps prevent rot.

This video introduces Deck2wall® Spacers, examines water management and rot prevention at deck ledgers, and includes a basic bolted connection.


Deck2Wall® vs. Washers    -    Deck2Wall®  vs.  Z-Flashing

Deck2Wall® spacers are available in 2 Sizes.

  • Original Deck2wall® Spacers - Model D2W58 5/8” thick x 2 1/2” diameter
  • Glass filled polypropylene
  • Center hole approximately 11/16”
  • Tested with 1/2” & 5/8” bolts and lags


  • Deck2wall® SWS Spacers - Model D2W38-SWS 1/2” thick x 2” diameter
  • Glass filled polypropylene
  • Center hole approximately 5/16”
  • Tested with Structural Wood Screws

Deck Safety



About Deck Safety

Rot is often a contributing factor when a deck collapses, so rot prevention is critical. Poorly designed ledger connections are not only dangerous, but can cause costly repairs.

In addition to the ledger connection, decks have many important connections and components to consider. Ensure your project complies with local building codes. 

The building industry recognizes several ways to prevent rot at these connections, which include “stacked washers” and the most common practice, “Z-flashing”, or sometimes L-flashing.

How do Deck2wall® Spacers compare to these methods?

Typical Ledger Failure

Typical Ledger Failure