ShadowDeck™ 12mm Deck-2-House Spacer

A Clean, Consistent Gap Between House and Deck

The ShadowDeck™ 12mm Deck-2-House Spacer takes the guesswork out of one of the most important details in deck installation — the gap between your house and your first decking board.

Engineered to create a precise, clean 12mm space between the house and deck, this spacer also helps pick up and support the first board, ensuring it sits at exactly the right height from the very start. The result is a tidy, professional edge that also allows water to drain freely away from the house — protecting both your deck and your home.

Key Features

• Creates a precise 12mm gap — consistent spacing between the house and deck for a clean, finished look
• Picks up the first board — supports the first decking board at the correct height for a level start
• Promotes drainage — allows water to drain away from the house, reducing moisture risk
• Part of the ShadowDeck™ system — designed to work seamlessly with ShadowDeck™ pre-grooved Kwila decking and fasteners
• Easy to install — straightforward positioning along the ribbon plate at 450mm centres

How to Use

Fix the Deck-2-House Spacer to the ribbon plate at 450mm centres, with one spacer at the top and one at the bottom to keep the ribbon plate square and level. Use a pre-grooved off-cut to set the spacer at the correct height before screwing off. Refer to our Installation Guide for full setup instructions.

Compatible With

ShadowDeck™ pre-grooved Kwila decking timber and the full ShadowDeck™ fastener range.