12mm House-2-Deck Spacer Pack

A Clean, Consistent Gap Between House and Deck

The ShadowDeck™ 12mm House-2-Deck Spacer Pack ensures a precise, consistent 12mm gap between your house and the first decking board — one of the most important details in any deck installation. Spaced evenly between joists on the backside of the ribbon plate, these spacers support the first board at exactly the right height while allowing water to drain freely away from the house.

Get this detail right from the start and the rest of your installation follows cleanly. Get it wrong and you'll be chasing level for the entire deck.

Key Features

• Creates a precise 12mm gap — consistent spacing between the house and deck for a clean, finished look
• Supports the first board at the correct height — sets the foundation for a level, professional installation
• Promotes drainage — allows water to drain freely away from the house, reducing moisture risk to the structure
• Easy to position — spaced evenly between joists on the backside of the ribbon plate
• Part of the ShadowDeck™ system — designed to work seamlessly with ShadowDeck™ pre-grooved Kwila decking and fasteners

Pack Contains

• 20 x 12mm House-2-Deck Spacers

*Spacers to be positioned evenly between joists on the backside of the ribbon plate. Refer to our Installation Guide for full setup instructions.